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Icom Ic-703 Manual
>
> INSTRUCTION MANUAL
> HF/50 MHz
> ALL MODE TRANSCEIVER
>
> i703
> FOREWORD
> Thank We understand that you have a choice of many
> different radios in the market place. We want to take a
> couple of moments of your time to thank you for making the IC-703 your radio of choice, and hope you
> agree with Icom‚s philosophy of „technology first.‰
> Many hours of research and development went into
> the design of your IC-703.
>
> FEATURES
>
> .DSP features (AF DSP; UT-106 DSP UNIT required
> some version)
> . All mode capability covering 160ˆ6 m
> . 9.0ˆ15.87 V operation
> . Compact with detachable front panel
> . ±0.5 ppm of high frequency stability
> . Built in antenna tuner
> . Simple band scope function
> PRECAUTION
> IMPORTANT
> READ THIS INSTRUCTION MANUAL
> CAREFULLY before attempting to operate the
> transceiver.
>
> SAVE THIS INSTRUCTION MANUAL. This
> manual contains important safety and operating instructions for the IC-703.
>
> EXPLICIT DEFINITIONS
> WORD DEFINITION
> RWARNING
> Personal injury, fire hazard or electric
> shock may occur.
> CAUTION Equipment damage may occur.
> NOTE
> If disregarded, inconvenience only. No
> risk or personal injury, fire or electric
> shock.
>
> RWARNING RF EXPOSURE! This device emits
> Radio Frequency (RF) energy. Extreme caution should be
> observed when operating this device. If you have any
> questions regarding RF exposure and safety standards
> please refer to the Federal Communications Commission
> Office of Engineering and Technology‚s report on Evaluating Compliance with FCC Guidelines for Human Radio
> Frequency Electromagnetic Fields (OET Bulletin 65).
>
> RWARNING HIGH VOLTAGE! NEVER attach an
> antenna or internal antenna connector during transmission. This may result in an electrical shock or burn.
>
> RNEVER apply AC to the [DC13.8V] receptacle on the
> transceiver rear panel. This could cause a fire or damage
> the transceiver.
>
> RNEVER apply more than 16 V DC, such as a 24 V
> battery, to the [DC13.8V] receptacle on the transceiver
> rear panel. This could cause a fire or damage the transceiver.
>
> RNEVER let metal, wire or other objects touch any internal part or connectors on the rear panel of the transceiver. This may result in an electric shock.
>
>
> NEVER expose the transceiver to rain, snow or any liquids.
>
> AVOID using or placing the transceiver in areas with temperatures below ˆ10°C (+14°F) or above +60°C (+140°F).
> Be aware that temperatures on a vehicle‚s dashboard can
> exceed 80°C (+176°F), resulting in permanent damage to
> the transceiver if left there for extended periods.
>
> AVOID placing the transceiver in excessively dusty environments or in direct sunlight.
>
> AVOID placing the transceiver against walls or putting
> anything on top of the transceiver. This will obstruct heat
> dissipation.
>
> Place unit in a secure place to avoid inadvertent use by
> children.
>
> During mobile operation, DO NOT operate the transceiver
> without running the vehicle‚s engine. When the transceiver‚s power is ON and your vehicle‚s engine is OFF,
> the vehicle‚s battery will soon become exhausted.
>
> Make sure the transceiver power is OFF before starting
> the vehicle. This will avoid possible damage to the transceiver by ignition voltage spikes.
>
> During maritime mobile operation, keep the transceiver
> and microphone as far away as possible from the magnetic
> navigation compass to prevent erroneous indications.
>
> BE CAREFUL! The rear panel will become hot when operating the transceiver continuously for long periods.
>
> BE CAREFUL! If a linear amplifier is connected, set the
> transceiver‚s RF output power to less than the linear amplifier‚s maximum input level, otherwise, the linear amplifier will be damaged.
>
> Use Icom microphones only (supplied or optional). Other
> manufacturer‚s microphones have different pin assignments, and connection to the IC-703 may damage the
> transceiver.
>
> Beat signals may be heard on some frequencies.
> These will occur as a result of circuit construction.
>
> For U.S.A. only
>
> Caution: Changes or modifications to this transceiver, not
> expressly approved by Icom Inc., could void your authority
> to operate this transceiver under FCC regulations.
> FOREWORD ????????????????? i
> IMPORTANT ?????????????????i
> EXPLICIT DEFINITIONS ???????????? i
> PRECAUTION ????????????????i
> TABLE OF CONTENTS ???????????? ii
>
> QUICK REFERENCE GUIDE ??????IˆX
>
> Installation ???????????????? I
> 1. Grounding your Shack ????????? I
> 2. Installing your DC Power Supply ???? I
> 3. Installing lightning protection ?????? II
> 4. Installing your antenna system ????? II
> 5. Connect other peripheral equipment ?? III
> Operation ???????????????? III
> 1. Voice ???????????????? III
> 2. CW????????????????? III
> 3. Other convenient items ???????? IV
> Your first contact ????????????? IV
> D Getting started ????????????? IV
> D Just listening ?????????????? V
> 1. Select the desired band ???????? V
> 2. Tune to the desired frequency ????? V
> 3. Adjust audio output ?????????? V
> D What are you hearing? ????????? VI
> 1. Verify mode ????????????? VI
> 2. Reducing interference
> (Some functions may require
> an optioanl unit depending on version) ? VI
> Ready to call CQ? ???????????? IX
> 1. Setting up your Mic Gain ??????? IX
> 2. Speech compressor?????????? X
> TABLE OF CONTENTS
> 1 PANEL DESCRIPTION ???????1ˆ10
>
> Front panel ???????????????? 1
> Multi-function switches ??????????? 4
> DM1 functions ?????????????? 4
> DM2 functions ?????????????? 4
> DM3 functions ?????????????? 4
> DM4 functions ?????????????? 5
> DS1 functions ?????????????? 6
> DS2 functions ?????????????? 6
> DS3 functions ?????????????? 6
> DS4 functions
>
> (UT-106 is required for some version) ??? 6
>
> Rear panel ???????????????? 7
> DDATA socket ?????????????? 8
> DACC socket??????????????? 8
> Function display?????????????? 9
> Microphone (HM-103) ?????????? 10
> 2 INSTALLATION AND CONNECTIONS ? 11ˆ16
>
> Unpacking???????????????? 11
> Selecting a location???????????? 11
> Grounding???????????????? 11
> Antennaconnection???????????? 11
> Installation ??????????????? 12
> DSingle body mounting ?????????? 12
> DStand ????????????????? 12
> DFront panel separation ????????? 12
> DFront panel mounting ?????????? 12
> Required connections??????????? 13
> Advanced connections ?????????? 14
> DC Power voltage ???????????? 15
> DC Power supply connections ??????? 15
> Battery connections ??????????? 15
> External antenna tuners and linear amplifier ? 16
> SUPPLIED ACCESSORIES
> The transceiver comes with the following accessories.
> Qty.
> q Hand microphone (HM-103) .............................. 1
> w DC power cable (OPC-1229) ............................. 1
> e Spare fuse (FGB 4 A) ........................................ 3
> r ACC cable ...........................................................1
> t 3.5 (d) mm plug ...................................................1
> y 6.5 (d) mm Electronic keyer plug.........................1
> u Microphone hanger..............................................1
> q
> e r
> w
> t y u
> 1
> 2
> 3
> 4
> 5
> 6
> 7
> 8
> 9
> 10
> 11
> 12
> 13
> 14
> 15
> 16
> 17
> 18
> 19
> Quick Reference
> Icom, Icom Inc. and the
> logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.
>
>
> TABLE OF CONTENTS
> 3 BASIC OPERATION ????????17ˆ26
>
> When first applying power (CPU resetting)?? 17
> DM1 display selection ?????????? 17
>
> Initial settings ?????????????? 17
>
> VFO description ????????????? 18
> DThe differences between VFO and
> memory mode ????????????? 18
>
> Frequency setting ???????????? 19
>
> Operating mode selection ????????? 23
>
> Volume setting?????????????? 23
>
> Squelch and receive (RF) sensitivity ???? 24
>
> Dial lock function????????????? 25
>
> Basic transmit operation ????????? 25
> DTransmitting ?????????????? 25
> DMaximum output power ????????? 25
> DSetting output power ?????????? 26
> DSetting microphone gain????????? 26
>
> 4 RECEIVE AND TRANSMIT ?????27ˆ45
>
> Operating SSB?????????????? 27
> DConvenient functions for receive ????? 27
> DConvenient functions for transmit ????? 27
>
> Operating CW ?????????????? 28
> DConnections for CW ?????????? 28
> DCW operation ????????????? 29
> DConvenient functions for receive ????? 30
> DConvenient functions for transmit ????? 30
> DCW reverse mode ??????????? 30
> DCW pitch control ???????????? 31
> DElectronic CW keyer ?????????? 31
> DCW side tone function?????????? 32
> DKeyer set mode ???????????? 32
>
> Memory keyer functions?????????? 33
> DMemory keyer send menu ???????? 34
> DEditing a memory keyer ????????? 35
> DContest number set mode ???????? 36
> DMemory keyer set mode????????? 37
>
> Operating RTTY ????????????? 38
> DConnections for RTTY (FSK)??????? 38
> DRTTY (FSK) operation ????????? 38
> DConvenient functions for receive ????? 39
> DRTTY reverse mode ?????????? 39
> DPresetting for RTTY ?????????? 40
> DRTTY tone set mode ?????????? 40
>
> Operating AM ?????????????? 41
> DConvenient functions for receive ????? 41
> DConvenient functions for transmit ????? 41
>
> Operating FM ?????????????? 42
> DConvenient functions for receive ????? 42
> DConvenient functions for transmit ????? 42
> DTone squelch operation ????????? 43
> DTone scan operation ?????????? 43
> DFM tone set mode ??????????? 44
>
> Repeater operation???????????? 45
>
> 5 FUNCTION FOR RECEIVE ?????46ˆ50
>
> Simple band scope ???????????? 46
>
> Preamp and attenuator ?????????? 46
>
> RIT function ??????????????? 47
>
> IF shift function ????????????? 47
>
> Noise blanker ?????????????? 48
> DNoise blanker level set mode ?????? 48
>
> AGC time constant ???????????? 48
>
> Optional filter selection ?????????? 49
>
> Peak meter hold ????????????? 50
>
> DSP Functions (may require an optional unit
> depending on version) ?????????? 50
> DANF (Automatic Notch Filter) function ??? 50
> DNR (Noise Reduction) function ?????? 50
>
> 6 FUNCTION FOR TRANSMIT ?????51ˆ55
>
> Split frequency operation ????????? 51
> DQuick split function ??????????? 52
>
> Meter selection ????????????? 52
>
> VOX operation?????????????? 53
> DVOX set mode ????????????? 53
>
> Speech compressor ??????????? 54
> DCompression level set mode ??????? 54
>
> SWR??????????????????? 55
> DMeasuring SWR ???????????? 55
>
> 7 MEMORY OPERATION ???????56ˆ60
>
> Memory channels ???????????? 56
>
> Memory channel selection????????? 56
>
> Memory programming ?????????? 57
>
> Memory clearing ????????????? 58
>
> Frequency transferring ?????????? 58
>
> Memory names ????????????? 59
>
> Memo pads ??????????????? 60
>
> 8 SCAN OPERATION ????????61ˆ63
>
> Scan types ??????????????? 61
>
> Preparation ??????????????? 61
>
> Programmed scan operation???????? 62
>
> Memory scan operation ?????????? 62
>
> Select memory scan operation ??????? 63
>
> Priority watch ?????????????? 63
>
> 9 ANTENNA TUNER OPERATION??? 64ˆ66
>
> Antenna tuner operation ????????? 64
> DInternal antenna tuner?????????? 64
> DTuner operation ???????????? 64
> DOptional external tuner operation ????? 65
> DOptional AT-180
> AUTOMATIC ANTENNA TUNER operation ??? 65
> DOptional AH-4
> AUTOMATIC ANTENNA TUNER operation ??? 66
> TABLE OF CONTENTS
> 10 DATA COMMUNICATION ????? 67ˆ70
>
> Connections for packet ?????????? 67
> DWhen connecting to [DATA] socket ???? 67
> DWhen connecting to [ACC] socket ???? 67
> DWhen connecting to [MIC] connector ??? 67
> Packet (AFSK) operation ????????? 68
> DFrequency indication during AFSK operation ? 68
> DSSB-D mode selection ????????? 69
> DCarrier point setting??????????? 69
> DAdjusting the transmit signal from the TNC? 70
> 11 CONTROL COMMAND ?????? 71ˆ73
>
> Remote jack (CI-V) information ?????? 71
> DCI-V connection example ????????? 71
> DData format ??????????????? 71
> DCommand table ???????????? 72
> D Band stacking register ????????? 73
> D Codes for memory keyer contents ???? 73
> D Codes for memory name contents ???? 73
> 12 SET MODE ??????????? 74ˆ82
>
> General????????????????? 74
> DQuick set mode operation ???????? 74
> DInitial set mode operation ???????? 74
> Quick set mode items??????????? 75
> Initial set mode items ??????????? 76
> 1 Maximum output power setting ???? 76
> 2 Power save setting ????????? 76
> 3 Simple mode setting????????? 76
> 4 Mode availability ?????????? 76
> 5 Output power setting for mode ???? 76
> 6 Confirmation beeps ????????? 77
> 7 Band edges beeps ????????? 77
> 8 Beep level adjustment ???????? 77
> 9 Beep audio level limit ???????? 77
> 10 CW carrier point setting ??????? 77
> 11 CW side tone level ????????? 77
> 12 CW side tone level limit ??????? 77
> 13 SSB/CW frequency shift setting ???? 78
> 14 Display backlighting ????????? 78
> 15 Key/switch backlighting ??????? 78
> 16 Light timer setting ?????????? 78
> 17 LED brightness ??????????? 78
> 18 Automatic power OFF ???????? 78
> 19 Current intercept point ???????? 79
> 20 RF gain/squelch control ??????? 79
> 21 Sub dial setting ??????????? 79
> 22 Optional filter selection???????? 79
> 23 Peak meter hold setting ??????? 79
> 24 Quick split function ????????? 79
> 25 Split lock function ?????????? 80
> 26 Split offset frequency ???????? 80
> 27 Scan resume condition???????? 80
> 28 Scanning speed??????????? 80
>
> 29 [UP]/[DN] speed ?????????? 80
> 30 Noise blanker in AM mode ?????? 80
> 31 Available memo pads ???????? 80
> 32 Power ON check function ?????? 81
> 33 Auto tune start function ??????? 81
> 34 PTT tune function ?????????? 81
> 35 Tuner switch condition ???????? 81
> 36 Packet data speed ????????? 81
> 37 Voice synthesizer language?????? 82
> 38 Voice synthesizer speed ??????? 82
> 39 S-meter level speech ???????? 82
> 40 CI-V address setting????????? 82
> 41 CI-V data transffer rate???????? 82
> 42 CI-V transceive ??????????? 82
> 43 CI-V operating frequency data length ? 82
>
> 13 MAINTENANCE ??????????? 83
>
> Fuse replacement ???????????? 83
> Memory backup ????????????? 83
> Cleaning ???????????????? 83
> 14 TROUBLESHOOTING??????? 84ˆ85
>
> 15 OPTIONAL UNIT
> INSTALLATIONS AND SETTINGS ?86ˆ89
>
> Opening the transceiver case ??????? 86
> UT-102 VOICE SYNTHESIZER UNIT ?????? 86
> DOperation ??????????????? 86
> IF filter ????????????????? 87
> UT-106 DSP RECEIVER UNIT ???????? 88
> MB-72 CARRYING HANDLE ????????? 88
> AT-180 internal switch description ????? 89
> 16 SPECIFICATIONS ??????????90
>
> General????????????????? 90
> Transmitter ??????????????? 90
> Receiver ???????????????? 90
> Antenna tuner ?????????????? 90
> 17 OPTIONS ????????????91ˆ92
>
> 18 MENU GUIDE ??????????93ˆ94
>
> 19 ABOUT CE???????????? 95ˆ96
>
> 1
> 2
> 3
> 4
> 5
> 6
> 7
> 8
> 9
> 10
> 11
> 12
> 13
> 14
> 15
> 16
> 17
> 18
> 19
> Quick Reference
>
> QUICK REFERENCE GUIDE
> Installation
> 1. Install a ground system for DC noise suppression
> and RFI suppression
> 2. Install your DC power supply
> 3. Install lightning protection. This will help protect
> more than your gear.
> 1. Grounding your Shack
> 2. Installing your DC Power Supply
> 4. Install and connect an antenna system for the appropriate bands of operation
> 5. Connect other peripheral equipment. This includes
> microphones, headsets, TNC, amplifiers and any
> other equipment necessary to make your shack
> complete.
> Although your radio will operate by connecting the DC
> power supply and antenna, it is necessary to have a
> good ground system in your shack. A ground connec-
> tion is the electrical contact between the common
> point of an electrical or electronic system and the
> earth.
> A good earth ground is necessary to prevent electrical
> shock, eliminate problems from RFI and DC noise.
> With more electronic devices being used today, it is
> also important to reduce RFI and EMI. Although you
> may not see interference in your shack, without a
> grounding system, your neighbours may experience
> interference. Even though many of these devices are
> Part 15, where they must accept interference from
> their surrounding environment, it is best to eliminate
> as much of the possible interference from your shack.
> If you do not have a grounding system for your shack,
> depending on the location of your shack, basement or
> ground floor, a good ground system can be as simple
> as a couple of ground rods driven 6 to 8 feet into the
> soil. When installing your IC-703 to your grounding
> system, the shortest most direct connection is recom-
> mended.
> NOTE: There are many publications covering
> proper grounding techniques. Check with your local
> dealer for more information and recommendations.
> RWARNING!: NEVER ground station equip-
> ment or antennas to house gas lines. NEVER at-
> tach ground lines to plastic (pvc) pipe.
> DDSome Symptoms if inadequate grounding
> a. Poor DC Ground
> 50/60 Hz hum on the audio either Rx or Tx without
> the antenna connected.
> If you feel a tingling sensation when you touch a
> metal surface. Surfaces such as the cover of your
> radio or power supply.
> b. Poor RF Ground
> While transmitting and you feel a tingling sensation
> when you touch a metal surface. Surfaces such as
> the cover of your radio or power supply.
> While transmitting, you experience interference to
> other electronic devices, such as the telephone,
> television or stereo audio systems.
> The DC power supply is a device used to convert
> 110/220 V AC, also know as Household current, to a
> steady source of 13.8 V DC.
> The perfect match to your IC-703 is the PS-125. This
> plug and play unit plugs into the DC power recepta-
> cle using an optional OPC-1248 located on the rear
> of the radio.
> Or connect the supplied DC power cable (OPC-1229)
> to the appropriate color coded terminals, then insert
> the DC connector into the DC power receptacle lo-
> cated on the rear of the radio.
> NOTE: Although the power supply current require-
> ment is quite low during receiving, this not the case
> when you transmit. With many electrical devices in
> the shack, it is very important to verify the electrical
> circuit is not overloaded.
> AC cable
> AC
> outlet
> A DC power
> supply*
> Black
> _
> Red
> +
> PS-125
> DC power cable
> Ground
> 4 A fuses
> Transceiver
> to DC
> power
> receptacle
> Supplied
> OPC-1229Optional
> OPC-1248
> Connect to an AC outlet
> using the supplied AC cable.
> *13.8 V;
> at least 3.0 A
> continuous
>
> QUICK REFERENCE GUIDE
>
> 3. Installing lightning protection
> Although you may not live in an area with high occur-
> NOTE: There are many publications covering
> rence for lightning storms, it is always wise to take
>
> proper lightning protection, check with your local
> precautions for lightning or static discharges. Proper
>
> dealer for more information and recommendations.
> lightning protection not only offers protection to the
> ham gear, but the shack and most importantly the operator.
>
> 4. Installing your antenna system
> Whether your IC-703 is your first radio or one of
> many, one of your key elements in a great shack is
> the antenna system. There is a connection on the
> back of your IC-703, for HF and 6 m. If you are using
> one antenna for HF and 6 m, for simplicity, connect
> the antenna coax to ANT.
> Your IC-703 is equipped with an internal antenna
> tuner (ATU) for operation on 160ˆ6 m. This ATU is de-
> signed to work with an unbalanced 50 O feedline. The
> purpose of the internal antenna tuner is to match the
> impedance of your antenna system to as close to a
> 50 O load as possible. This ATU will not operate with
> a long wire or ladder line (450 O or other balanced
> feedlines). An external ATU such as the AH-4 would
> be necessary for this kind of operation.
> PL-259 CONNECTOR INSTALLATION EXAMPLE
> 30 mm ? 9/8 in 10 mm ? 3/8 in 1ˆ2 mm ? 1/16 in
> RWARNING: Although a mag mount antenna
> works great on a vehicle, DO NOT use the IC-703
> with this type of antenna.
> CAUTION: Although your IC-703 has protection to
> drop down power with a high SWR, this does not
> completely protect the transceiver from transmis-
> sion without an antenna. Make sure you have an
> antenna connected whenever you transmit with
> your radio.
> NOTE: There are many publications covering
> proper antennas and their installation, check with
> your local dealer for more information and recom-
> mendations.
> 30 mm
> 10 mm (soft solder)
> 10 mm
> 1ˆ2 mm
> solder solder
> Soft
> solder
> Coupling ring
> Slide the coupling ring
> down. Strip the cable
> jacket and soft solder.
> Slide the connector
> body on and solder it.
> Screw the coupling
> ring onto the
> connector body.
> Strip the cable as
> shown at left. Soft
> solder the center con-
> ductor.
> q
> w
> e
> r
> Antenna SWR
> Each antenna is tuned for a specified frequency
> range and SWR may be increased out-of-range.
> When the SWR is higher than approx. 2.0:1, the
> transceiver‚s power drops to protect the final tran-
> sistors. In this case, an antenna tuner is useful to
> match the transceiver and antenna. Low SWR al-
> lows full power for transmitting even when using the
> antenna tuner. The IC-703 has an SWR meter to
> monitor the antenna SWR continuously.
> ANTENNA
> Connect a HF/50MHz antenna
> Impedance: 50O
> Quick Reference
>
> QUICK REFERENCE GUIDE
>
> 5. Connect other peripheral equipment
> Everyone has his or her favorite ad-on gear; now is If you do not see the particular item you are wanting
> the time to connect this gear! We will cover the basic to connect, refer to the Advance Connections section
> devices that can be connected to your IC-703. starting on page 14.
>
> Operation
> 1. Voice
> Microphones: Connect the microphone to the modu-
> lar-type connector bottom of the front panel or back
> of the radio.
> Rear panel
> Front panel
> MICROPHONES
> HM-103 SM-20 OPC-589
> 2. CW
> CW Key: There are several types of keys or keyers
> that can be used with your IC-703.
> a. Iambic Key paddle: Use a 6.35(d) mm (1/4.) stereo
> plug and connect to the [KEY] jack located on the
> rear of the radio.
> b. Straight Key: Use a 6.35(d) mm (1/4.) mono plug
> and connect key to the back of the radio.
> c. External Keyer: Use a 6.35(d) mm (1/4.) mono
> plug and connect to the back of the radio.
> d. Computer Keying: Use a 6.35(d) mm (1/4.) mono
> plug and connect to the back of the radio.
> NOTE: You will need to select the type of keyer you
> are using in the keyer set mode. There are many
> advanced CW functions in this set mode. Until you
> have a full understanding of these functions
> change only the items necessary.
> Rear panel
> CW KEY
> A straight key can be used when the internal
> electronic keyer is turned OFF in keyer set
> mode. (p. 32)
> When connecting a straight key or else
> (+)
> (_)
> Rear panel
> CW KEY
> (dot)
> (com)
> (dash)
> When connecting a paddle
>
> QUICK REFERENCE GUIDE
> 3. Other convenient items
> Headphones:
> A 3.5(d) mm (1/4.) mono jack for operation without
> using the internal or external speakers. Perfect for op-
> eration without disturbing others in the room.
> External Speaker:
> A 3.5(d) mm (1/8.) mono jack for operation with an ex-
> ternal speaker. (Input impedance: 8 O/Max. input
> power: 5 W)
> Front panel
> Rear panel
> SPEAKER
> or
> PHONES .
> SPEAKER v
> Select ŒSPEAKER‚ with
> the [PHONES/SPEAKER]
> switch on the back of the
> front panel.
> SPEAKER
> Front panel
> HEADPHONES
> PHONES .
> SPEAKER v
> Select ŒPHONES‚ with the
> [PHONES/SPEAKER]
> switch on the back of the
> front panel.
> Your first contact
> Now you should have your IC-703 installed in your
> shack, and like a kid on his birthday, you are probably
> excited to get on the air. We would like to take you
> through a few basic operation steps to make your first
> „On The Air‰ an enjoyable experience.
>
> D Getting started
>
> 1. Before powering up your radio, you may want to 2. Resetting the CPU: Although you have purchased
> make sure the following controls are set in the fol-a brand new radio, some settings may be changed
> lowing positions: from the factory defaults during the QC process. So
> your radio can start from Factory Defaults resetting
> the CPU is necessary. (Refer to p.17)
>
> [POWER]
>
> [Y]
> ?[AF] : Commonly referred to as the vol
> [Z]
> ume: fully counter clockwise.
>
> ?[RF/SQL] : The control for the RF Gain and
> Squelch circuits: 12 o‚clock.
> ?[SHIFT] : Shifts the IF center frequency:
> 12 o‚clock
> Quick Reference
>
> QUICK REFERENCE GUIDE
>
> D Just listening
>
> 1. Select the desired band
> On your IC-703, an easy way of changing bands is by
> using the [(Y)BAND] or [(Z)BAND] located just right
> corner on the front panel.
> Push [(Y)BAND] or [(Z)BAND] to select the desired
> band.
> ?Pushing [(Y)BAND] or [(Z)BAND] continuously scrolls
> through the available bands.
> Say you want to go to 20 meters or 14 MHz; you
> would push [(Y)BAND] or [(Z)BAND] several times
> to select it. This will change the displayed operating
> frequency to the 20-meter band.
> NOTE: The band stacking register can also be
> used to select bands. (Refer to p. 22)
>
> ?[Y]
> [Z]
> 2. Tune to the desired frequency
> Directly left of the [(Y)BAND]/[(Z)BAND] is the main
> dial. This will allow you to dial in the frequency you
> want to operate. You will notice the tuning speed [TS]
> is 10 Hz resolution. Page 20 will instruct you on how
> to set the tuning speed [TS] for 1 Hz resolution.
> 3. Adjust audio output
> Adjust this control to a comfortable audio level.
>
> AF
> RF/SQL
> Decreases
> Increases
> No audio output
> Max. audio output
>
> QUICK REFERENCE GUIDE
>
> D What are you hearing?
>
> Stop and focus on what you are hearing. Do you hear
> a lot of noise? Is the signal intelligible? Are you set up
> for the right mode? How about the filters?
>
> 1. Verify mode
> Although your IC-703 will automatically select USB or
>
> MODE
>
> LSB in the HF bands, it will not select any of the other
> modes. You will need to select the proper mode
> whether CW, RTTY, AM or FM.
> Hint!
>
> The Band Stacking Register will memorize the last
> frequency used in the band, as well as the Mode,
> Filter, Tuner and AGC settings. This makes band
> hoping much easier.
>
> 2. Reducing interference (some functions may require an optional unit depending on version)
> Your IC-703 has many features to reduce QRM and
> QRN from the desired signal.
> a. Noise Reduction: The noise reduction system on
> your IC-703 is part of the DSP. This is used to re-
> duce the hiss and QRM levels.
> qSelect S4 (DSP menu).
> ?Push [DISPLAY] once or twice to select S.
> ?Push [MENU] one or more times to select S4.
> wPush [(F-2)NR] to activate the noise reduction func-
> tion.
> ? „DSP‰ and „NR‰ appear when the function is ON.
> b. Adjusting the Noise Reduction: The noise re-
> duction is completely variable on how much of the
> DSP Noise Reduction is used.
> qPush [(F-3)NRL] to indicate the noise reduction
> level.
> wRotate the [M-CH] control to set the noise reduc-
> tion level.
> ePush [(F-3)NRL] to exit the noise reduction level
> set mode.
> Hint!
> How far you advance the NR control will determine
> how much the noise can be effectively reduced. Ad-
> justing the noise reduction level too high may cause
> some distortion to occur on the received signal. The
> noise reduction level should only be set as high as
> is necessary. Use this setting, along with RF gain,
> NB (noise blanker, if needed), and IF filters as well,
> to minimize the effects of noise on the target signal.
> CH
> VFO A
> PO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> USB
> BLANK
> S4 LEVEL 4 NRL
> NRNRDSP
> [(F-3)][M-CH]
> Noise reduction ON
> Noise reduction OFF
> CH
> VFO A
> PO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> USB
> BLANK
> S4 ANF NR NRL
> NRNRDSP
> [(F-2)][MENU] [DISPLAY]
> Appear
> Quick Reference
>
> QUICK REFERENCE GUIDE
> c. Automatic Notch: The automatic notch will track
> up to heterodynes. This is helpful for eliminating
> annoying transmitter „tune up‰ tones on any band,
> and to minimize continuous tone „heterodynes‰ en-
> countered on the 40 meter phone bands at night,
> for example. Once selected an icon will appear
> „ANF‰ on the display.
> qSelect S4.
> ?Push [DISPLAY] once or twice to select S.
> ?Push [MENU] one or more times to select S4.
> wPush [(F-1)ANF] to activate the automatic notch fil-
> ter.
> NOTE: Your IC-703 is equipped with an AGC cir-
> cuit. This allows the DSP to filter out interfering sig-
> nals and QRM, while also taking this interference
> out of the AGC. Bottom line, this will either elimi-
> nate or greatly reduce the pumping of the AGC
> from the interfering signal.
> Hint!
> The Automatic Notch will not operate in the CW,
> RTTY or SSB-D modes.
> CH
> VFO A
> PO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> USB
> BLANK
> S4 ANF NR NRL
> ANFANFDSP
> Appear
> [(F-1)]
> [DISPLAY][MENU]
> d. Noise Blanker: The noise blanker function re-
> duces pulse-type noise such as that generated by
> automobile ignition systems. This function is not ef-
> fective for FM modes or for non pulse-type noise.
> qSelect M3.
> ?Push [DISPLAY] once or twice to select M.
> ?Push [MENU] one or more times to select M3.
> wPush [(F-2)NB] to activate the noise blanker.
> ?„NB‰ appears when the function is ON.
> e. Adjusting the Noise Blanker: The noise blanker
> is completely variable on how much of the Noise
> Blanker is used.
> qPush [(F-2)NB] for 1 sec. to enter the noise blanker
> level set mode.
> wRotate the main dial to set the noise blanker level.
> ePush [DISPLAY] to exit the noise blanker level set
> mode.
> Hint!
> When using the noise blanker, received signals
> may be distorted if the noise blanker level setting
> has been too high.
> USB
> N1 NB LEVEL
> [(F-2)] Main dial
> [DISPLAY]
> CH
> VFO A
> PO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> USB
> BLANK
> M3 FIL NB MET
> NB
> [(F-2)][MENU] [DISPLAY]
> Appears
>
> QUICK REFERENCE GUIDE
> f. Filter:
> One optional filter can be installed in the IC-703.
> Narrow filters help reject interference from adjacent
> signals and obtain good selectivity.
> Wide filters provide improved audio for SSB opera-
> tion when no interfering signals are present.
> Narrow filters for AM/FM modes are standard.
> FILTER PRESETTING:
> After you install a filter (see p. 87 for installation), you
> must specify the installed filter in initial set mode (item
> „22 OPT. FIL‰ ; see p. 79).
> FILTER ON/OFF:
> qSelect M3.
> ?Push [DISPLAY] once or twice to select M.
> ? Push [MENU] one or more times to select M3.
> wPush [(F-1)FIL] momentarily to select the narrow
> filter; push for 1 sec. to select the wide filter.
> ?ã appears when the narrow filter is selected; ç ap-
> pears when the wide filter is selected.
> NOTE:When selecting the narrow filter (or wide fil-
> ter), the graphic passband is changed (see dia-
> gram below).
> CH
> VFO A
> PO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> USB
> BLANK
> M3 FIL NB MET
> N W
> [(F-1)]
> [MENU] [DISPLAY]
> Either these
> appears when selected
> Normal
> operation
> wide is
> selected
> narrow is
> selected
> We hope these pointers have been helpful. Now you
> are ready for the „Ready to call CQ?‰.
>
> Quick Reference
>
> QUICK REFERENCE GUIDE
> Ready to call CQ?
> BAND
> BAND
> MODE
> TS
> DISPLAY
> LOCK
> F 1 F 2 F 3
> AF RF SQL
> RIT
> SHIFTM-CH
> SUB
> PHONES
> TUNER
> P.AMP ATT
> Y
> Z
> POWER
> MENU
> TX
> RX
> [AF]: Max. CCW
> [RF/SQL]: Center
> [LOCK]: OFF
> (indicator light out)
> [POWER]: OFF
> [SHIFT]: Center
> [P.AMP/ATT]: OFF
> (indicator lights out)
> [TUNER]: OFF
> (indicator lights out)
> [RIT/SUB]: OFF
> (indicator lights out)
> CCW : counterclockwise
> 1. Setting up your Mic Gain
> Microphone gain must be adjusted properly so that
> your signal does not distort when transmitted.
>
> qSelect SSB or another phone mode (AM or FM
>
> mode).
> wPush [DISPLAY] for 1 sec. to select quick set mode.
> ePush [MENU] one or more times to select „Q2
>
> MIC GAIN.‰
>
> ?The ALC meter is selected automatically when operat
> ing in SSB mode.
> rWhile speaking into the microphone, rotate the
>
> main dial to adjust the microphone gain so that the
>
> ALC meter does not peak past the ALC zone.
>
> ?While transmitting at your normal voice level, the ALC
> meter should read at about the middle of the ALC zone.
> ?Be sure the mic gain is in the range of 2 to 5.
> tPush [DISPLAY] to exit quick set mode.
> [MENU] Main dial
> [DISPLAY]
> ALC
> S1 53 7 9 20 40 60dB
> USB
> Q2 MIC GAIN
> ALC
> ALC zone
> QUICK REFERENCE GUIDE
>
> 2. Speech compressor
> The IC-703 has a built-in, low distortion speech com-
> pressor circuit. This circuit increases your average
> talk power in SSB mode and is especially useful for
> DX‚ing when the receiving station is having difficulty
> copying your signal.
> qSelect USB or LSB mode.
> wSelect the ALC meter.
> ? Push [DISPLAY] once or twice to select M.
> ?Push [MENU] one or more times to select M3, then push
> [(F-3)MET] one or more times to select „ALC.‰
> eSelect M4.
> ?Push [MENU] one more time to select M4.
> rPush [(F-2)COM] to turn the speech compressor
> function ON.
> ? „COM‰ appears.
> tPush [(F-2)COM] for 1 sec. to enter the compres-
> sion level set mode (p. 54).
> yRotate the main dial to set the speech compression
> level.
> NOTE: When the ALC meter peaks at light the ALC
> zone, your transmitted voice may be distorted. Hint!
> Voice patterns and audio characteristics vary with
> each operator, therefore the Microphone gain,
> speech compression settings will be different for
> each operator. Actual on air experimenting is nec-
> essary to get just the right sound. It‚s best to test
> and adjust your audio on the air, while someone
> who knows what your real voice sounds like listens,
> and provides and opinion on your audio quality.
> ALC
> ALC zone
> ALC
> S1 53 7 9 20 40 60dB
> USB
> C1 COMP LEVEL
> [MENU] [(F-2)]
> [(F-3)]
> Main dial[DISPLAY]
> Verify you have selected a clear frequency
> and call out your CQ!
>
> Quick Reference
>
> 1 PANEL DESCRIPTION
> Front panel
> q
>
> we r
>
> qPOWER SWITCH [POWER] (p. 17) ?When setting as RF gain/squelch control
> BAND
> BAND
> MODE
> TS
> DISPLAY
> LOCK
> F 1 F 2 F 3
> AF RF SQL
> RIT
> SHIFTM-CH
> SUB
> PHONES
> TUNER
> P.AMP ATT
> Y
> Z
> POWER
> MENU
> TX
> RX
> CH
> VFO A
> PO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> USB
> M1 SPL A/B XFC
> !1
> !2!3!4!5!6!7!8
> !9
> @0
> @2
> @1
> !0
> t
>
> Squelch is
> open.
>
> RF gain
> adjustable
> range
>
> yui o
>
> Noise squelch (FM mode)
>
> Recommended level
>
> Maximum
> RF gain
>
> S-meter
> squelch
>
> .While transceiver‚s power is OFF:
> Push to turn power ON.
> ?Turn the DC power supply ON in advance.
> .While transceiver‚s power is ON:
> . Push momentarily to indicate the connected
> power supply voltage.
> . Push for 1 sec. to turn power OFF.
> wAF GAIN CONTROL [AF] (inner control; p. 17)
> Varies the audio output level from the speaker.
>
> AF
> RF/SQL
> Decreases
>
> Increases
>
> No audio output Max. audio output
>
> eRF GAIN CONTROL/SQUELCH CONTROL
> [RF/SQL] (outer control; p. 24)
>
> Adjusts the RF gain and squelch threshold level.
> The squelch removes noise output from the speaker
> (closed condition) when no signal is received.
>
> ?The squelch is particularly effective for FM. It is also
> available for other modes.
> ?12 to 13 o‚clock position is recommended for any setting
> of the [RF/SQL] control.
> ?The control can be set as ŒAuto‚ (RF gain control in SSB,
> CW and RTTY; squelch control in AM and FM) or
> squelch control (RF gain is fixed at maximum) in initial
> set mode as follows. (p. 79)
> ?When functioning as RF gain control
> (Squelch is fixed open; SSB, CW, RTTY only)
>
> Maximum
> RF gain
>
> Adjustable
>
> range
>
> Minimum RF gain
>
> ?When functioning as squelch control
> (RF gain is fixed at maximum.)
>
> Noise squelch Noise squelch (FM mode)
>
> threshold
> (FM mode)
>
> Squelch is
> open.
>
> Shallow
>
> S-meter squelch
> threshold
>
> S-meter
> squelch
>
> Deep
>
> MODE
> SET MODE SETTING
> AUTO SQL RF GAIN + SQL
> SSB, CW
> RTTY RF GAIN SQL RF GAIN + SQL
> AM, FM SQL SQL RF GAIN + SQL
> PANEL DESCRIPTION
>
> 1
>
> rFUNCTION DISPLAY
> Shows the operating frequency, dot matrix indications, selected memory channel, etc. See p. 9 for
> details.
>
> tTUNING STEP SWITCH [TS] (pgs. 19ˆ21)
>
> .While in SSB/CW/RTTY modes, push momentarily to turn the programmable tuning step ON and
> OFF. While in FM/AM mode push momentarily to
> toggle the programmable tuning step and 1 MHz
> quick tuning step.
> ?While the programmable tuning step indicator is displayed, the frequency can be changed in programmed
> kHz steps.
> Programmable tuning step indicator
>
> USB
> ?0.01 (FM/AM mode only), 0.1, 1, 5, 9, 10, 12.5, 20, 25
> and 100 kHz tuning steps are available.
> ?1 MHz quick tuning step are only available in FM and
> AM modes.
> .While the programmable tuning step is OFF, turns
> the 1 Hz step ON and OFF when pushed for 1
> sec.
> ?1 and 10 Hz steps are only available in SSB, CW and
> RTTY modes.
> ?1 Hz indication appears, and the frequency can be
> changed in 1 Hz steps.
> .While the programmable tuning step is ON, enters the tuning step selection mode when pushed
> for 1 sec.
> yMODE SWITCH [MODE] (p. 23)
>
> .Push momentarily to cycle through the operating
> modes:
> USB/LSB . CW . RTTY/SSB-D . FM/AM
> .Push for 1 sec. to toggle the following operating
> modes:
> USB . LSB
> CW . Memory keyer mode
> RTTY. SSB-D (SSB data mode)
> FM . AM
> uRECEIVE/TRANSMIT INDICATORS [RX]/[TX]
>
> .[RX]: Lights green while receiving a signal and
> when squelch is open.
> .[TX]: Lights red while transmitting.
> iMAIN DIAL
> Changes the displayed frequency, sets the values
> of selected initial set mode items, etc.
>
> oUP/DOWN (BAND) SWITCHES [Y/Z(BAND)]
>
> .Push momentarily to select a band.
> ?Can also be used to advance or back the quick set
> mode items, initial set mode items, etc.
> .Push and hold to scroll through the bands continuously.
> !0MAIN DIAL TENSION LATCH
>
> Selects the main dial tension.
>
> ?2 positions are available.
> !1MICROPHONE CONNECTOR (p. 10)
> Modular-type microphone connector˜Accepts the
> supplied microphone (HM-103).
>
> ?The optional OPC-589 can be used to connect an 8-pin
> microphone such as the SM-8 or SM-20, if desired.
> ?A microphone connector is also available on the rear
> panel. DO NOT connect 2 microphones simultaneously.
> !2LOCK SWITCH [LOCK]
>
> .Push momentarily to toggle the dial lock function
> ON and OFF.
> ?The dial lock function electronically locks the main
> dial.
> .When the optional UT-102 VOICE SYNTHESIZER
> UNIT is installed (p. 86), push for 1 sec. to have
> the frequency, etc. announced.
> ?UT-102 operation can be adjusted in the initial set
> mode (p. 82).
> LOCK
> Lights while the lock
> function is activated.
> !3DISPLAY SWITCH [DISPLAY] (p. 94)
>
> .Push momentarily to select one of the three menu
> sets: M1 to M4, S1 to S4 and G1 to G4.
> .Push for 1 sec. to enter the quick set mode.
> !4MULTI-FUNCTION SWITCHES [F1] / [F2] / [F3]
>
> .Push to select the function indicated in the dot matrix display above these switches. (pgs. 4ˆ6, 94)
> ?Functions vary depending on the menu set selected.
> .Push to edit a character for memory keyer programming or memory name. (pgs. 35, 59)
> !5MENU SWITCH [MENU] (p. 94)
>
> .Push this switch one or more times to select
> menus within a menu set (M, S or G), or push to
> advance through the quick set mode and initial
> set mode displays.
> .Push for 1 sec. to jump between two different
> function menu sets.
> 1
>
> PANEL DESCRIPTION
>
> !6RIT/SUB DIAL SWITCH [RIT/SUB] (pgs. 21, 47)
>
> .Push to toggle the RIT or SUB DIAL function ON
> and OFF˜initial set mode is used to select the
> desired action*.
> ?Lights green when the SUB DIAL function is ON; lights
> red when the RIT function is ON.
> ?Use the [M-CH] control to vary the RIT frequency or
> SUB DIAL frequency (see below).
> .When the RIT function is ON, push for 1 sec. to
> add or subtract the shifted frequency to the operating frequency.
> RIT/
> SUB
>
> Lights red while the RIT function is activated;
> green while the SUB DIAL function is activated.
>
> *Even if RIT is selected in initial set mode, RIT cannot be selected when operating AM or FM modes.
>
> . What is the RIT function?
>
> The RIT (Receiver Incremental Tuning) shifts the receive frequency without shifting the transmit frequency.
>
> This is useful for fine tuning stations calling you on an off-frequency or when you prefer to listen to slightly different-
> sounding voice characteristics, etc.
>
> !7SHIFT CONTROL [SHIFT] (outer control; p. 47)
> Shifts the center frequency of the receiver‚s IF passband.
>
> ?Rotate the control clockwise to shift the center frequency
> higher, or rotate the control counterclockwise to shift the
> center frequency lower.
> ?When rotate the control, the IF passband is graphically
> displayed and changes in accordance with the [SHIFT]
> control.
> M-CH
> SHIFT M-CH
> SHIFT M-CH
> SHIFT
> Shifts low Center Shifts high
>
> !8M-CH CONTROL [M-CH] (inner control)
>
> .When the RIT or SUB DIAL functions are OFF, rotate to select a memory channel number (p. 56).
> .Shifts the receive frequency while the RIT function is ON in SSB, CW and RTTY modes (see
> above or p. 47).
> ?RIT variable range is ± 9.99 kHz
> .Changes the operating frequency in the selected
> tuning steps while the SUB DIAL function is ON
> (p. 21).
> M-CH
> SHIFT
> Decreases
> Increases
> !9HEADPHONE JACK [PHONES] (p. 14)
> Accepts headphones with 8ˆ16 O impedance.
>
> ?When headphones are connected, no receive audio
> comes from the speaker.
> ?When the PHONES/SPEAKER switch on the back of the
> front panel is set to the [SPEAKER] position, an external
> speaker can be connected. This is convenient for mobile
> or outdoor operation.
> Back of the front panel
>
> PHONES .
> SPEAKER v PHONES .
> SPEAKER v
> @0TUNER SWITCH [TUNER] (pgs. 64ˆ66)
>
> .Push momentarily to toggle the automatic antenna tuner function ON and OFF (bypass).
> ?Lights red when the automatic antenna function is ON.
> .Push this switch for 1 sec. to manually tune the
> antenna.
> ?When the tuner cannot tune the antenna, the tuning
> circuit is bypassed automatically after 20 sec.
> TUNER
> Lights while the automatic
> tuning function is activated.
> @1FRONT PANEL LATCH (p. 12)
> Pull away from the transceiver (towards yourself
> when looking at the front of the transceiver) to detach the front panel from the main body of the transceiver.
>
> @2PRE AMP/ATTENUATOR SWITCH [P.AMP/ATT]
>
> (p. 46)
> .Push momentarily to turn the preamp ON or OFF.
> .Push for 1 sec. to turn the 20 dB attenuator ON;
> push momentarily to turn the attenuator OFF.
> ?Lights green when the preamp is ON; lights red when the
> 20 dB attenuator is ON.
> P.AMP/ATT
> Lights green while the preamp is activated;
> lights red while the attenuator is activated.
> . What is the preamp?
>
> The preamp amplifies received signals in the front end circuit to improve the S/N ratio and sensitivity. Turn ON ŒP.AMP‚
> when receiving weak signals.
>
> . What is the attenuator?
>
> The attenuator prevents a desired signal from distorting
> when very strong signals are near the desired frequency, or
> when very strong electric fields, such as from a broadcasting station, are near your location.
>
> PANEL DESCRIPTION
>
> 1
>
> Multi-function switches
> DM1 functions DM2 functions
> M1 SPL A/B XFC M2 MW MCL V/M
>
> MENU F-1 F-2 F-3MENU F-1 F-2 F-3
> SPLIT OPERATION (p. 30)
>
> .Push momentarily to toggle the split func-SPL
> F-1
> tion ON and OFF. (p. 51)
> ?„ä‰appears when the split function is ON.
> .Push for 1 sec. to turn the quick split function ON. (p. 52)
> ?The offset frequency must be programmed in
> advance using initial set mode. (p. 80)
> ?The offset frequency is shifted from the displayed frequency.
> ?The quick split function can be turned OFF
> using initial set mode. (p. 79)
> VFO A/B SELECTION
>
> .Push momentarily to toggle VFO A and A/B
> F-2
> VFO B in VFO mode. (p. 18)
> .Push momentarily to toggle the transmission VFO and reception VFO during split
> operation. (p. 51)
> .Push momentarily to toggle the transmit
> and receive frequencies (and modes) of
> memory channels when the split function
> is turned ON.
> .Push for 1 sec. to equalize the frequency
> and operatingmode of the two VFO‚s.
> ?The rear (undisplayed) frequency and operating mode are equalized to the front (displayed) VFO frequency and operating mode.
> TRANSMIT FREQUENCY CHECK (p. 51)
> XFC Monitors the transmit frequency when
> pushed and held.
>
> F-3
> ?While pushing this switch, the transmit frequency can be changed with the main dial.
> MEMORY WRITE (p. 57)
> Push for 1 sec. to store the selected read-
> F-1
> MW out frequency and operating mode into
> the displayed memory channel.
>
> MEMORY CLEAR (p. 58)
> Push for 1 sec. to clear the selected read-MCL
> F-2
> out memory channel contents.
>
> ?„}‰ appears.
> ?This switch does not function in VFO mode.
> VFO/MEMORY
>
> V/M .Push momentarily to toggle between VFO
> and memory modes. (p. 56)
>
> F-3
> .Push for 1 sec. to transfer the frequency
> and operating mode in the selected memory channel to a VFO. (p. 58)
> DM3 functions
>
> M3 FIL NB MET
> MENU F-1 F-2 F-3
> FILTER SELECTION (p. 49)
> Push to toggle the narrow filter (or wideFIL
> F-1
> filter˜push for 1 sec.) ON and OFF.
>
> ?„ã‰appears when the narrow filter is ON;
> „ç‰ appears when the wide filter is ON.
> ?An optional filter installation and presetting in
> initial set mode (p. 79) is necessary to use
> the following:
> CW/RTTY narrow: FL-52A or FL-53A
> SSB narrow: FL-222
> SSB wide: FL-257
>
> NOISE BLANKER (p. 48)
>
> .Push momentarily to toggle the noise
> F-2
> NB blanker ON and OFF.
> ?„NB‰ appears when the noise blanker function is ON.
> ?The noise blanker does not function in FM
> mode; „30 AM NB‰ item (p. 80) in initial set
> mode must be set to ON for the noise
> blanker to work in AM mode.
> .Push for 1 sec. to enter the noise blanker
> level set mode.
> ?The noise blanker level can be set in noise
> blanker level set mode (p. 46).
> 1
>
> PANEL DESCRIPTION
>
> METER SELECTION (p. 52)
> MET Selects the type of meter displayed (during transmit) in the function display.
>
> F-3
> ?Power, ALC or SWR metering can be selected.
> ?Only an S-meter is available for receive.
> DM4 functions
>
> DURING SSB/AM OPERATION:
>
> M4 VOX COM AGC
> MENU F-1 F-2 F-3
> DURING CW OPERATION:
> M4 1/4 KEY AGC
> MENU F-1 F-2 F-3
> DURING RTTY OPERATION:
> M4 1/4 TON AGC
> MENU F-1 F-2 F-3
> DURING SSB-D OPERATION:
> M4 1/4 AGC
> MENU F-1 F-2 F-3
> DURING FM OPERATION:
> M4 VOX TON
> MENU F-1 F-2 F-3
> VOX FUNCTION (p. 53)
>
> .Push momentarily to toggle the VOX func-
> F-1
> VOX tion ON and OFF.
> ?„VOX‰ appears when the VOX function is
> ON.
> .Push for 1 sec. to enter the VOX set
> mode.
> ?The VOX delay, VOX gain and ANTI-VOX
> can be set in VOX set mode.
> . What is the VOX function?
>
> The VOX function (voice operated transmission) starts transmission without pushing the PTT switch when you speak into
> the microphone; then, automatically returns to receive when
> you stop speaking.
>
> SPEECH COMPRESSOR (p. 54)
> COM .Push momentarily to toggle the speech
> compressor ON and OFF.
>
> F-2
> ?„COM‰ appears when the speech compressor is ON.
> .Push for 1 sec. to enter the compression
> level set mode.
> ?The COMP gain can be set in compression
> level set mode.
> AGC (p. 48)
> AGC Push to change the time constant of the
> AGC circuit.
>
> F-3
> ?„FAGC‰ appears when the fast time constant
> is selected.
> 1/4 FUNCTION
>
> Push to toggle the 1/4 tuning function ON1/4
> F-1
> and OFF.
>
> ?When the 1/4 function is ON, a bar appears
> under the 1/4 indication and fine tuning can be
> used.
> KEYER SET MODE (p. 32)
> Push for 1 sec. to enter the keyer setKEY
> F-2
> mode.
>
> ?The break-in setting, break-in delay time, CW
> pitch, CW paddle type and dot/dash ratio can
> be set in the keyer set mode.
> . What is the break-in function?
>
> Full break-in (QSK) activates the receiver between transmitted dots and dashes. This is useful when operating in nets,
> or during DX pileups and during contests, when „fast exchanges‰ are common.
>
> RTTY TONE SET MODE (p. 40)
>
> .Push for 1 sec. to enter the RTTY tone set TON
> F-2
> mode.
> ?The RTTY tone frequency, RTTY shift frequency and RTTY keying polarity can be set
> in RTTY tone set mode.
> FM TONE OPERATION
>
> .Push momentarily to select the subaudi-
> TON
> F-2
> ble tone encoder for repeater use, tone
> squelch function and OFF. (pgs. 43ˆ45)
>
> ?„T‰ appears when the repeater tone function
> is ON. (pgs. 43, 45)
> ?„TSQL‰ appears when the tone squelch function is ON. (p. 43)
> .Push for 1 sec. to enter the FM tone set
> mode. (p. 44)
> ?The repeater tone frequency, tone squelch
> frequency can be set in FM tone set mode.
>
> DS1 functions
>
> S1 MW MPW MPR
> MENU F-1 F-2 F-3
> MEMORY WRITE (p. 57)
> Push for 1 sec. to store the selected
> F-1
> MW readout frequency and operating mode
> into the displayed memory channel.
>
> MEMO PAD WRITE (p. 60)
> MPW Push to store the the selected readout
> frequency and operating mode into a
> memo pad.
>
> F-2
> MEMO PAD READ (p. 60)
> MPR Push to call up a memo pad.
>
> F-3
> DS2 functions
>
> DURING VFO MODE:
>
> S2 SCN PRI V/M
> MENU F-1 F-2 F-3
> DURING MEMORY MODE:
> S2 SCN SEL V/M
> MENU F-1 F-2 F-3
> SCAN (pgs. 61ˆ63)
> SCN Push to start or stop the scan function.
>
> F-1
> PRIORITY WATCH (p. 63)
> PRI Push to start or stop the priority watch.
>
> F-2
> VFO/MEMORY
>
> .Push momentarily to toggle between VFOV/M
> F-3
> and memory modes. (p. 56)
> .Push for 1 sec. to transfer the frequency
> and operating mode in the selected memory channel to a VFO. (p. 58)
> SELECT SCAN (p. 61)
> SEL Push to toggle the select setting ON and
> OFF for the selected memory channel.
>
> F-2
> PANEL DESCRIPTION
>
> 1
>
> DS3 functions
>
> S3 7 1421
> MENU F-1 F-2 F-3
> QUICK BAND CHANGE FUNCTION (p. 22)
> This item provides access to the band stacking register. By default the 7, 14 and 21 MHz bands are displayed. Push [F-1], [F-2] or [F-3] for 1 sec. to
> select a
> new band if desired.
>
> ?A mode is memorized along with the frequency for each
> band.
> DS4 functions
>
> (UT-106 is required for some version)
>
> S4 ANF NR NRL
> MENU F-1 F-2 F-3
> AUTOMATIC NOTCH FILTER (p. 50)
> ANF This function automatically attenuates
> beat tones, tuning signals, etc., even if
> they are moving.
>
> F-1
> NOISE REDUCTION (p. 50)
> This function reduces noise components
> F-2
> NR and picks out desired signals which are
> buried in the noise.
>
> NOISE REDUCTION LEVEL DISPLAY (p. 50)
> This switch displays the noise reductionNRL
> F-3
> level when pushed.
>
> 1
>
> PANEL DESCRIPTION
>
> 0
> Rear panel
> ert
>
> w
>
> q
>
> !
>
> qANTENNA CONNECTOR [ANT] (p. 13)
> Accepts a 50 O antenna with a PL-259 connector.
>
> wGROUND TERMINAL [GND] (p. 11)
> Connect this terminal to a ground to prevent electrical shocks, TVI, BCI and other problems.
>
> eDATA SOCKET [DATA] (pgs. 8, 14)
> 6-pin min DIN socket to connect a TNC (Terminal
> Node Controller), etc. for packet operation.
>
> ?See page at right for socket information.
> rACCESSORY SOCKET [ACC] (pgs. 8, 14)
> Enables connection to external equipment such as a
> TNC for data communications, a linear amplifier or
> an automatic antenna selector/tuner, etc.
>
> ?See page at right for socket information.
> tEXTERNAL SPEAKER JACK [EXT SP] (p. 14)
> Accepts a 4ˆ8 O speaker.
>
> yCI-V REMOTE CONTROL JACK [REMOTE] (p. 71)
>
> .Designed for use with a personal computer for remote control of the transceiver functions.
> .Used for transceiver operation with another Icom
> CI-V transceiver or receiver.
> uMICROPHONE CONNECTOR [MIC] (p. 13)
> Accepts the supplied microphone (connected in parallel with the front panel‚s [MIC] connector).
>
> ?See p. 2 for microphone notes.
> ?See p. 10 for microphone connector information.
> yu i
>
> o
>
> iELECTRONIC KEYER JACK [KEY] (p. 28)
> Accepts a paddle to activate the internal electronic
> keyer.
>
> ?Selection between the internal electronic keyer and
> straight key operation can be made in keyer set mode.
> (p. 32)
> When connecting
> a straight key
> (.)
> When connecting
> a paddle
> (dot)
> (com)
> (dash)
> If you use an external electronic keyer, make sure
> the voltage retained by the keyer is less than 0.4 V
> when the key is ON.
>
> oTUNER CONTROL SOCKET [TUNER] (p. 14)
> Accepts the control cable from an optional AH-4
> HF/50 MHz AUTOMATIC ANTENNA TUNER.
>
> !0DC POWER SOCKET [DC13.8V] (p. 15)
> Accepts 9.0ˆ15.87 V DC through the supplied DC
> power cable.
> NOTE: DO NOT use a cigarette lighter socket as a
> power source when operating in a vehicle. The plug
> may cause voltage drops and ignition noise may be
> superimposed onto transmit or receive audio.
> PANEL DESCRIPTION
>
> 1
>
> DDATA socket
>
> DATA PIN No. NAME DESCRIPTION
> 1 DATA IN Input terminal for data transmit. (1200 bps: AFSK/9600 bps: G3RUH, GMSK)
> 2 GND Common ground for DATA IN, DATA OUT and AF OUT.
> 34
> 56
> 3 PTT P PTT terminal for packet operation. Connect ground to transmit data.
> 4 DATA OUT Data out terminal for 9600 bps operation only.
> 12 5 AF OUT Data out terminal for 1200 bps operation only.
> Rear panel view
> 6 SQ
> Squelch out terminal. Becomes ground level when the transceiver receives a signal
> which opens the squelch.
> ?To avoid unnecessary TNC transmission, connect squelch to the TNC to inhibit transmission when receiving signals.
> ? Keep audio output at a normal level, otherwise a „SQ‰ signal will not be output.
>
> 1
> DACC socket
>
> ACC PIN No. NAME DESCRIPTION SPECIFICATIONS
> 1 8 V Regulated 8 V output. Output voltage : 8 V ±0.3 V
> Output current : Less than 10 mA
> 2 GND Connects to ground. ˜˜˜
> 3 HSEND
> Input/output pin. (HF/50 MHz only)
> Goes to ground when transmitting.
> When grounded, transmits.
> Ground level : ˆ0.5 V to 0.8 V
> Output current : Less than 20 mA
> Input current (Tx) : Less than 200 mA
> 1234
> 87 6 5
> 9101 12
> 13
> Rear panel view
> 4 BDT Data line for the optional AT-180. ˜˜˜
> 5 BAND Band voltage output.
> (Varies with amateur band)
> Output voltage : 0 to 8.0 V
> 6 ALC ALC voltage input. Control voltage : ˆ4 V to 0 V
> Input impedance : More than 10 kO
> q brown i gray
> w red o white
> e orange !0 black
> r yellow !1 pink
> t green !2 light
> bluey blue
> u purple !3 light
> green
> 7 NC ˜˜˜ ˜˜˜
> 8 13.8 V 13.8 V output when power is ON. Output current : Max. 1 A
> 9 TKEY Key line for the optional AT-180. ˜˜˜
> 10 FSKK Controls RTTY keying
> „High‰ level : More than 2.4 V
> „Low‰ level : Less than 0.6 V
> Output current : Less than 2 mA
> 11 MOD Modulator input.
> Connects to a modulator.
> Input impedance : 10 kO
> Input level : Approx. 100 mV rms
> 12 AF
> AF detector output.
> Fixed, regardless of [AF] position in
> default settings.
> Output impedance : 4.7 kO
> Output level : 100ˆ300 mV rms
> 13 SQLS Squelch output.
> Goes to ground when squelch opens.
> SQL open : Less than 0.3 V/5 mA
> SQL closed : More than 6.0 V/100 µA
>
> Color refers to the cable strands of the supplied cable.
>
> ? When connecting the ACC conversion cable (OPC-599)
> q 8 V t ALC
> w GND y VSEND
> e HSEND u 13.8 V
> r BAND
>
> ACC 1 ACC 2 q FSKK t AF
> w GND y SQLS
> e HSEND u 13.8 V
> r MOD i ALC
> 1234
> 8
> 8765
> 9101112
> 13
> 13
> 7 6
> 13
> 7 6
> 2
> 452
> 45
> Connect to ACC socket
>
> PANEL DESCRIPTION
>
> Function display
> qw e
>
> N W
> LSB USB CW R RTTY AM FM TSQL
>
> SPL
> rb
>
> ra
>
> !
>
> t
>
> 3
> NR
> ANF
> DSP
>
> !2
>
> NB VOX F-BK COM FAGC
> VFO A
> VFO B
> MEMO
> BLANK
> y
>
> u
>
> S13579 20 4060dB
>
> i
>
> S
>
> !1
>
> ALC
>
> o
>
> CH
>
> SWRPO1 1.5 2 3 5 8 10
>
> M1 SPL A/B XFC
> !0
>
> qNARROW/WIDE FILTER INDICATORS !0DOT MATRIX INDICATORS
>
> .„㉠appears when selecting AM narrow or FM These alphanumeric readouts show a variety of in-
> narrow modes. formation such as current functions of the „F‰ keys
> .When installing an optional narrow filter, narrow [F1] to [F3], memory channel names, set mode
> mode can be selected in CW, RTTY and SSB items, etc. See p. 94 for an overview of these indimodes. cators.
> ?When the SSB wide filter is installed, „ç‰ appears
> !1METER READOUTS
>
> during wide mode selection.
>
> .Shows receiving signal strength while receiving.
> wMODE INDICATORS .Shows one of transmit power meter, ALC or SWR
> Show the selected operating mode. meter while transmitting.
>
> ?„å‰ appears when CW reverse or RTTY reverse mode is
> selected. !2FUNCTION INDICATORS
> .„NB‰ appears when the noise blanker is activated.
> eSPLIT INDICATOR .„VOX‰ appears when the VOX function is se-
> Appears during split operation. lected.
>
> .„F-BK‰ appears when full break-in operation is se
> rPROGRAMMABLE/1 MHz TUNING STEP lected and only „BK‰ appears when semi break-
> INDICATORS in operation is selected.
>
> .ra appears when the programmable tuning step .„COM‰ appears when the speech compressor isis selected. activated.
> .rb appears when the 1 MHz quick tuning step is .„FAGC‰ appears when the fast AGC function is se-
> selected. lected.
> tFREQUENCY READOUT !3DSP INDICATORS
>
> Shows the operating frequency. Appear when the (optional*) DSP unit UT-106 is (installed and) activated.
>
> yBLANK MEMORY INDICATOR
>
> Appears when the displayed memory channel is not
>
> * UT-106 DSP unit is optional for some version.
> programmed (blank channel).
>
> ?This indicator appears both in VFO and memory modes.
> uVFO/MEMORY INDICATORS
>
> .VFO A or B appears when VFO mode is selected;
> MEMO appears when memory mode is selected.
> iSELECT MEMORY CHANNEL INDICATOR
>
> Appears when the selected memory channel is set
>
> as a select memory channel.
>
> oMEMORY CHANNEL READOUT
>
> Shows the selected memory channel.
> PANEL DESCRIPTION
>
> 1
>
> Microphone (HM-103)
> q
>
> DN UP
> LOCK
> OFF ON
> w
> qUP/DOWN SWITCHES [UP]/[DN]
>
> Change the operating frequency.
>
> ?Push and hold to change the frequency continuously.
> ?Tuning step is 50 Hz when no TS indicator appears.
> e
> wLOCK SWITCH [LOCK]
>
> Locks the [UP]/[DN] switches.
>
> ePTT SWITCH [PTT]
>
> Push and hold to transmit; release to receive.
>
> 1
> ?MICROPHONE CONNECTOR
> TECHNICAL INFORMATION
> PIN NO. FUNCTION DESCRIPTION
> 1 +8 V DC output Max. 10 mA
> 2
> Frequency up Ground
> Frequency down Ground through 470 O
> 8
> Squelch open „LOW‰ level
> Squelch closed „HIGH‰ level
> r PTT
> y Microphone input
> w Frequency up/down
> u GND
> q +8 V DC output
> i Squelch switch
> t GND (Microphone ground)
> e AF output
> Rear panel view
> 12345678? HM-103 SCHEMATIC DIAGRAM
> 4700p
> 4700p10µ
> 0.33µ +
> +
> MICROPHONE
> MIC
> ELEMENT
> 2k
> 2.2k
> 470
> DOWNLOCK UP
> PTT RECEIVE
> TRANSMIT
> MICROPHONE
> CABLE
> MICROPHONE PLUG
> 12345678
> CAUTION:DO NOT short pin 1 to ground as
> this can damage the internal 8 V regulator.
>
> 2 INSTALLATION AND CONNECTIONS
> Unpacking
> After unpacking, immediately report any damage to the
> delivering carrier or dealer. Keep the shipping cartons.
>
> For a description and a diagram of accessory equipment included with the IC-703, see ŒSupplied accessories‚ on p. ii of this manual.
>
> Selecting a location
> Select a location for the transceiver that allows adequate air circulation, free from extreme heat, cold, or
> vibrations, and away from TV sets, TV antenna elements, radios and other electromagnetic sources.
>
> The base of the transceiver has an adjustable stand
> for desktop use. Set the stand to one of two angles depending on your operating conditions. (see description
> at right page)
>
> Grounding
> To prevent electrical shock, television interference
> (TVI), broadcast interference (BCI) and other problems, ground the transceiver through the GROUND
> terminal on the rear panel.
>
> For best results, connect a heavy gauge wire or strap
> to a long earth-sunk copper rod. Make the distance between the [GND] terminal and ground as short as possible.
> RWARNING: NEVER connect the [GND] terminal to a gas or electric pipe, since the connection
> could cause an explosion or electric shock.
> Antenna connection
> For radio communications, the antenna is of critical importance, along with output power and sensitivity. Select antenna(s), such as a well-matched 50
> O antenna,
> and feedline. 1.5:1 or better of Voltage Standing Wave
> Ratio (VSWR) is recommended for your desired band.
> Of course, the transmission line should be a coaxial
> cable.
> CAUTION: Protect your transceiver from lightning
> by using a lightning arrestor.
>
> ANTENNA SWR
> Each antenna is tuned for a specified frequency
> range and SWR may be increased out-of-range.
> When the SWR is higher than approx. 2.0 : 1, the
> transceiver‚s power drops to protect the final transis-
> tors. In this case, an antenna tuner is useful to match
> the transceiver and antenna. Low SWR allows full
> power for transmitting even when using the antenna
> tuner. The IC-703 has an SWR meter to monitor the
> antenna SWR continuously.
> 30 mm
> 10 mm (soft solder)
> 10 mm
> 1ˆ2 mm
> solder solder
> Soft
> solder
> Coupling ring
> PL-259 CONNECTOR INSTALLATION EXAMPLE
> q
> e
> r
> w
> Slide the coupling ring
> down. Strip the cable
> jacket and soft solder.
> Slide the connector
> body on and solder it.
> Screw the coupling
> ring onto the connector
> body.
> Strip the cable as
> shown at left. Soft
> solder the center conductor.
>
> 2
>
> INSTALLATION AND CONNECTIONS
>
> Installation
> DSingle body mounting DStand
>
> To raise the stand:
>
> Spring washer
>
> NutWith the transceiver upside down, pull the stand to-
> MB-62
> wards the rear panel and then upwards, as illus(optional) trated below.
>
> Supplied with
>
> the MB-62*
>
> Flat washer
>
> *CAUTION: Non-supplied screws (longer than 8 mm)
> may damage the internal units.
> Pull back
> then up
> DFront panel separation
>
> 2
> qWhile pulling the panel release button towards you,
> slide the front panel to the right (fig. 1).
> wAttach the optional OPC-581 to the main body and
> tighten the supplied screw as in fig. 2.
> eAttach the other end of the OPC-581 to the de-
> tached front panel as in fig. 3.
> CAUTION: NEVER detach/attach the front panel
> when connecting the DC power supply (or battery).
> Make sure the disconnecting DC power cable from
> the [13.8 V] receptacle on the transceiver rear
> panel.
> fig. 1 fig. 2 fig. 3
> Latch Separation cable
> Separation cable
> DFront panel mounting
>
> qAttach the MB-63 to a flat surface using the two
> supplied screws (fig. 1).
> wFix the detached front panel to the MB-63 as illus-
> trated in fig. 2.
> BE CAREFUL of the orientation of the MB-63, oth-
> erwise, the front panel may become attached in the
> opposite direction.
> fig. 1
> fig. 2
>
> 13
> 2 INSTALLATION AND CONNECTIONS
> Required connections
> BAND
> BAND
> MODE
> TS
> DISPLAY
> LOCK
> F 1 F 2 F 3
> AF RF SQL
> RIT
> M-CH SHIFT
> SUB
> PHONES
> TUNER
> P.AMP ATT
> Y
> Z
> POWER
> MENU
> TX
> RX
> MICROPHONE (p. 10)
> HF/50 MHz ANTENNA
> GROUND (p. 11)
> HM-103
> CW KEY (p. 28)
> Use the heaviest gauge wire or
> strap available and make the
> connection as short as possible.
> Grounding prevents electrical
> shocks, TVI and other problems.
> Connects to DC 9.0ˆ15.8 V
> power supply. See p. 15 for
> details.
>
> 14
> INSTALLATION AND CONNECTIONS 2
> Advanced connections
> BAND
> BAND
> MODE
> TS
> DISPLAY
> LOCK
> F 1 F 2 F 3
> AF RF SQL
> RIT
> M-CH SHIFT
> SUB
> PHONES
> TUNER
> P.AMP ATT
> Y
> Z
> POWER
> MENU
> TX
> RX
> OPC-589 (p. 92)
> DESKTOP (p. 91)
> MICROPHONE
> Selectable with the [PHONE/SPEAKER] switch
> on the back of the front panel.
> SPEAKER
> ACC SOCKET (p. 8)
> DATA SOCKET (p. 8)
> 6-pin mini DIN socket to connect to a
> TNC, etc. for packet operation.
> AH-2b AH-4 (p. 16)
> EXTERNAL
> SPEAKER (p. 91)
> HEADPHONES
> SP-7/SP-10
> SM-20
> or
> REMOTE (p. 71)
> Used for computer control
> and transceive operation.
> 2
>
> INSTALLATION AND CONNECTIONS
>
> DC Power voltage
> Depending on the applied voltage from the connected
> power supply, a boarder voltage of 11.0 V is set as the
> point where the IC-703 switches between normal op-
> erating mode (over 11.0 V), and battery operating
> mode (under 11.0 V: power save mode).
> However when the connected voltage decreases from
> 13.8 V to 11.0V, the IC-703 switches from normal
> mode to battery mode. Conversely the IC-703
> switches back to normal mode from battery mode
> when the voltage reaches 11.5 V. This 0.5 V voltage
> difference prevents irregular switching between nor-
> mal mode and battery mode, caused by the voltage
> drop which are current capacity, receiving or transmit-
> ting.
> When 11.3 V voltage is applied, the IC-703 may acti-
> vate the battery operating mode depending on the
> current capacity of the power supply.
> DC Power supply connections
> Use a 13.8 V DC power supply with at least 3 A ca-
> pacity. when operating IC-703 with AC power. Refer
> to the diagram below for connection.
> CAUTION:
> Before connecting the DC power cable, check the
> following important items. Make sure:
> ?The [POWER] switch is OFF.
> ?Output voltage of the power source is 9.0ˆ15.8 V
> when you use a non-Icom power supply.
> ?DC power cable polarity is correct.
> Red: positive (+) terminal,
> Black: negative (ˆ) terminal
> AC cable
> AC
> outlet
> A DC power
> supply*
> *13.8 V; at least 3.0 A
> continuous
> Black
> _
> Red
> +
> CONNECTING A DC POWER SUPPLYCONNECTING PS-125 DC POWER SUPPLY
> PS-125
> DC power cable
> Ground
> 4 A fuses
> Transceiver
> to DC power
> receptacle Supplied
> OPC-1229
> Optional
> OPC-1248
> Connect to an AC
> outlet using the
> supplied AC cable.
> Battery connections
> ?RWARNING NEVER connect to a battery
> without supplied DC fuse, otherwise a fire hazard
> occur.
> ?NEVER connect the transceiver directly to a
> 24 V battery.
> ?DO NOT use the cigarette lighter socket for power
> connections. (See p. 7 for details)
> ?Attach a rubber grommet when passing the DC
> power cable through a metal plate to prevent a
> short circuit.
> Grommet
> CONNECTING A VEHICLE BATTERY
> Note: Use terminals for
> the cable connections.
> Crimp
> Solder
> Supplied
> DC power cable
> redblack
> 12 V
> battery
>
> INSTALLATION AND CONNECTIONS
>
> 2
>
> External antenna tuners and linear amplifier
> GroundGround
> Long wire or optional AH-2b
> AH-4
> ANT
> IC-703
> Coaxial cable
> (from the AH-4)
> CONNECTING THE AH-4
> IC-703
> Ground Ground
> AT-180
> CONNECTING THE AT-180
> HF
> to 6 m
> antenna
> [TRANSCEIVER]
> [ANT]
> [ANT]
> [ACC] [ACC]
> ACC cable supplied with the AT-180
> Coaxial cable supplied
> with the AT-180
> one of two
> connectors
> Note:
> Turn the IC-703‚s power OFF when connecting
> the AT-180, otherwise, the CPU may malfunction
> and the AT-180 may not function properly.
> CONNECTING A NON-ICOM LINEAR AMPLIFIER
> R WARNING:
> ?Set the transceiver output power and linear ampli-
> fier ALC output level referring to the linear amplifier
> instruction manual. Be sure the linear amplifier key-
> ing circuit control voltage is compatible with the IC-
> 703, before connecting to HSEND line (ACC cable).
> ?The ALC input level must be in the range 0 V to
> ˆ4 V, and the transceiver does not accept positive
> voltage. Non-matched ALC and RF power settings
> could cause a fire or damage the linear amplifier.
> ?The specifications for the SEND relay are 16 V
> DC 0.5 A. If this level is exceeded, a large external
> relay must be used.
> HSEND
> (Orange)
> ALC (Blue)
> 13.8V (Gray)
> Ground
> Relay
> RF INRF OUT
> ALC
> SEND
> ANT
> ACC cable
> ACC
> IC-703
> 50 O coaxial cable To an
> antenna
> 2
>
> 3 BASIC OPERATION
> When first applying power (CPU resetting)
> Before first applying power, make sure all connections
> required for your system are complete by referring to
> Chapter 2. Then, reset the transceiver using the following procedure.
> Resetting CLEARS all programmed contents in
> memory channels and returns all initial set mode and
> quick set mode contents to their default values.
>
> qMake sure the transceiver power is OFF.
> wWhile pushing [Y] and [Z], push [POWER] to turn
> power ON.
>
> ?„CLEAR ? OK‰ appears as shown at right.
> eThen push [F-3] for 1 sec to start resetting.
>
> ?The internal CPU is reset.
> ?The display changes to ŒAll indication,‚ ŒRF power,‚ ŒPower
> supply voltage‚ and ŒInitial frequency and Mode‚ as shown
> at right.
> DM1display selection
> If you can‚t figure out how to return to the M1 display:
> While pushing [MENU], turn power ON.
> Initial settings
> After resetting the transceiver, set controls and
> switches as shown in the diagram below.
>
> [POWER]: OFF
> [P.AMP/ATT]: OFF
> (indicator lights out)
> [TUNER]: OFF
> (indicator lights out)
> [RIT/SUB]: OFF
> (indicator lights out)
> [SHIFT]: Center
> BAND
> BAND
> MODE
> TS
> DISPLAY
> LOCK
> F 1 F 2 F 3
> AF RF SQL
> RIT
> SHIFTM-CH
> SUB
> PHONES
> TUNER
> P.AMP ATT
> Y
> Z
> POWER
> MENU
> TX
> CCW : counterclockwise
> RX
> [AF]: Max. CCW
> [RF/SQL]: Center
> [LOCK]: OFF
> (indicator light out)
> Turn power ON, then check the display. If any of the
> following indicators appear, turn them OFF as follows:
>
> ?Tuning step indicators, Z, (SSB, CW or RTTY):
> Push [TS].
> ?MHz tuning step indicator, Z, (FM or AM):
> Push [TS].
> ?1 Hz frequency readout (SSB, CW or RTTY):
> Push and hold [TS].
> [POWER]
> [Y]
> [Z]
> N W RLSB
> NB VOX F-BK COM F
> CH
> VFO A
> DUP
> VFO B
> MEMO
> AGC
> ALC
> SWR PO
> S1
> 11.5 2 3 5
> 53 7 9 20 40
> 10
> 60dB
> USB CW RTTY AM WFM TSQL SPL
> S
> 8
> NR
> ANF
> BLANK
> DSP
> CH
> VFO A
> PO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> USB
> BLANK
> M1 SPL A/B XFC
> DC SUPPLY
> RF POWER
> CLEAR ? OK
> F 3
> Push [F-3]
> for 1 sec.
>
> The transceiver‚s
> initial frequency and mode
>
> ?Memory mode indicator, MEMO:
> Use [(F-3)V/M] in the M2 display (p. 75).
> ?Split indicator, ä:
> Use [(F-1)SPL] in the M1 display (p. 75).
>
> BASIC OPERATION
>
> 3
>
> VFO description
> VFO is an abbreviation of Variable Frequency Oscillator, and traditionally refers to an oscillator. The IC-703‚s
> VFO can store a frequency and an operating mode.
>
> You can call up a desired frequency to a VFO with the
> memo pad-read switch (p. 60) or with the memory
>
> CH
> VFO A
> USB
> M1 SPL A/B XFC
> VFO
> MODE
> SWITCH
> MEMORY
> CHANNELMEMO PAD
> Select
> 28.025 MHz 7.001 MHz
> Transfer
> Transfer
> Change
>
> transfer switch (p. 58). You can also change the frequency with the main dial and select an operating
>
> DIAL
>
> mode with the [MODE] switch or call up previously ac-
>
> Transfer
>
> cessed frequency and modes with the band stacking
> register (p. 22).
>
> BAND
>
> The IC-703 has two VFOs, specially suited for split fre
>
> 21.295 MHz
> quency operation. The VFOs are called VFO A and
> VFO B. You can use the desired VFO to call up a frequency and operating mode for operation.
>
> DThe differences between VFO and memory mode
>
> 3
> VFO MODE MEMORY MODE (pgs. 56ˆ60)
>
> Each VFO shows a frequency and operating mode. If Each memory channel shows a frequency and operthe frequency or operating mode is changed, the VFO ating
> mode like a VFO. Even if the frequency or mode
> automatically memorizes the new frequency or oper-is changed, the memory channel does not memorize
>
> ating mode. the new frequency or operating mode.
>
> When the VFO is selected from another VFO or When a memory channel is selected from another
> memory mode, the last-used frequency and operat-memory channel or VFO mode, the memorized freing mode for that VFO appear. quency and operating mode appear.
>
>
> [EXAMPLE] [EXAMPLE]
>
> VFO is selected.
>
> Memory channel 1 is
> selected.
>
> USB USB
>
> VFO A
> MEMO
>
> CH
> CH
> The frequency is changed.
>
> CH
> USB
> MEMO
> MEMO
> MEMO
> CH
> USB
> CH
> USB
> The frequency is changed.
> Memory mode is selected.
>
> Another memory channel
> is selected.
> VFO is selected again.
>
> Memory channel 1 is
> selected again.
>
> Changed frequency (14.123 MHz) appears. Changed frequency (14.123 MHz) does not appear and
> memorised frequency (14.100 MHz) appears instead.
>
> CH
> VFO A
> USB
> MEMO
> CH
> VFO A
> USB
> CH
> USB
>
> BASIC OPERATION
>
> Frequency setting
> ?Band selection
> All HF ham bands, the 50 MHz band and a general
> coverage receiver band are included in the IC-703.
>
> Push [(Y)BAND]/[(Z)BAND] to select the desired
> band.
>
> ?Pushing [(Y)BAND]/[(Z)BAND] continuously scrolls
> through the available bands.
> The band stacking register can also be used to se-LSB
> lect bands. Refer to p. 22.
>
> USB
>
> FM
> [Y]
> [Z]
> USB
> USB
> Z
> Z
> ?Programmable tuning steps
> Programmable tuning steps are available to suit your
> operating requirements.
> These tuning steps are:
> ?Independently selectable for each mode
> ?Selectable from 0.01 (FM/AM only), 0.1, 1, 5, 9, 10,
> 12.5, 20, 25 and 100 kHz
> qPush [TS] one or more times until the programmable tuning step indicator „Z‰ appears above the 1
> kHz digit.
>
> Programmable tuning
>
> ?Rotating the main dial changes the frequency according
> step indicator
>
> to the set tuning step.
>
> wPush [TS] for 1 sec. while the programmable tuning
> step indicator appears to enter the tuning step selection mode.
>
> ?„Rotate DIAL‰ appears.
> 10 kHz tuning step is
>
> eRotate the main dial to set the desired tuning step.
>
> selected for USB
>
> ?Change the mode and select tuning steps for other
> operation.
>
> modes, if desired.
>
> rPush [TS] to exit the tuning step selection mode.
>
> tRotate the main dial to change the frequency according to the set tuning step.
>
> [TS] Main dial
> CH
> VFO A
> PO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> USB
> USB
> M1 A/B XFC
> DIAL
> SPL
> Rotate
>
> BASIC OPERATION
>
> 3
>
> ?1 Hz and 10 Hz tuning steps
> When neither the quick tuning step or programmable
> tuning step „Z‰ appear, rotating the main dial
> changes the frequency in increments of 1 or 10 Hz.
>
> These tuning steps are only available in SSB, CW
> and RTTY modes.
>
> qSelect SSB, CW or RTTY mode if necessary.
> wPush [TS] for 1 sec. to toggle between the 1 Hz
> and 10 Hz step settings.
>
> [TS] Main dial
>
> ?When the 1 Hz step is selected, the 1 Hz digit appears
> in the frequency indication; when the 10 Hz step is se-
> Rotating the main dial
>
> lected, the 1 Hz digit disappears from the frequency in-
>
> changes the frequency
>
> dication.
>
> in 10 Hz steps.
>
> ?Rotating the main dial changes the frequency 1 Hz or
> 10Hz tuning step.
> [MODE]
> VFO A
> USB
> TSPush for 1 sec.
> VFO A
> USB
> Rotating the main dial
> changes the frequency
>
> 3
> in 1 Hz steps.
>
> ?1 MHz quick tuning step
> The quick tuning step function allows you to change [MODE]
>
> the frequency in 1 MHz steps when rotating the main
> dial. This function is only available in FM and AM
> modes.
>
> qSelect FM or AM mode if necessary.
>
> wPush [TS] momentarily to toggle between the 1
> MHz tuning step and the programmable tuning
> step.
>
> ?„Z‰ appears above the 1 MHz indicator when the 1
> MHz tuning step is selected. Quick tuning step
> ?Rotating the main dial changes the frequency 1 MHz or indicator
> set tuning step.
> FM
>
> [TS] Main dial
> FM
> Rotating the main dial
> changes the frequency
> in 1 MHz steps.
> BASIC OPERATION
>
> ? [TS] switch flow chart
> SSB/CW/RTTY modes Any mode FM/AM modes
> TSUSB
> 10 Hz tuning
> TS
> 1 MHz tuning
> USB
> Programmable step tuning
> FM
> AppearsAppears
> momentarily (100 Hz ˆ100 kHz) momentarily
>
> 1 sec.1 sec.
> TSTS
> 1 sec. momentarily
>
> USB
> 1 Hz tuning
> USB
> Rotate DIALAppears
> Selectable for each mode.
>
> ?Sub dial function
> The sub dial function allows you to change the operating frequency using the [M-CH] control. This gives
> you more control in tuning since the [M-CH] knob is
> detented˜each click changes the frequency according to the set tuning step. This function is always
> available in FM and AM modes. However, in SSB,
> CW and RTTY modes, the initial set mode item „21
> SUB DIAL‰ (p.61), must be set to „FrEq.‰
>
> qPush [RIT/SUB] to turn the sub dial function ON.
>
> ?The [SUB] indicator lights green; if it lights red, the RIT
> function is activated˜sub dial function must be set in
> initial set mode in this case.
> wRotate [M-CH] to change the operating frequency
> according to the set tuning step.
> ePush [RIT/SUB] again to turn the function OFF.
> ?The [SUB] indicator turns off. [M-CH] [RIT/SUB]
> RIT/
>
> Indicator lights green
>
> SUB
>
> while the sub dial
> function is activated.
>
> BASIC OPERATION
>
> 3
>
> ?Quick band change function
> The quick band change function automatically stores
> the last frequency and mode used for each band in a
> band stacking register. This is convenient for contest
> operation, etc. The tables below show the quick band
> change default settings for each band.
>
> qSelect S3.
>
> ?Push [DISPLAY] once or twice to select S.
> ?Push [MENU] one or more times to select S3.
> wPush [F-1], [F-2] or [F-3] to select a band stacking
> register.
>
> ?The default settings for [F-1], [F-2], [F-3] are 7, 14, 21
> MHz bands, respectively.
> eTo change the settings for [F-1], [F-2] or [F-3] from
> their defaults, push [F-1], [F-2] or [F-3] for 1 sec.
> one or more times to until the desired band appears in the display above the corresponding
> switch.
>
> ?The last-used frequency and mode for the selected
> band are displayed.
> BAND FREQUENCY MODE
> 1.9 MHz 1.90000 MHz*1 CW
> 3.5 MHz 3.55000 MHz LSB
> 7 MHz 7.05000 MHz LSB
> 10 MHz 10.12000 MHz CW
> 14 MHz 14.10000 MHz USB
> 18 MHz 18.10000 MHz USB
> 21 MHz 21.20000 MHz USB
> 24 MHz 24.95000 MHz USB
> 28 MHz 28.50000 MHz USB
> 50 MHz*2 50.10000 MHz USB
> General*3 15.00000 MHz USB
>
> *1 1.83000 MHz for Italy version (#10, #20).
>
> *2 50 MHz band is not available for some version.
>
> *3 General refers to the general coverage receiver (GEN in
> the display) and the range varies according to version.
>
> [DISPLAY][F-2][MENU]
> [F-3][F-1]
> BLANK
> CH
> VFO AS1 53 7 9 20 40 60dB
> USB
> S3 7 14 21
> PO 5 10
> Display shows the
> default bands for the
> quick band change
> function.
> BLANK
> CH
> VFO AS1 53 7 9 20 40 60dB
> USB
> S3 7 GEN 21
> PO 5 10
> Display shows [F-2]
> has been changed
> from its default of the
> 14 MHz band to the
> general receiver band.
> 3
>
> BASIC OPERATION
>
> Operating mode selection
> The following modes are available in the IC-703:
> SSB (LSB/USB), CW, CW-å (CW reverse), RTTY
> and åRTTY (RTTY reverse), FM, AM.
> ?SSB (LSB/USB), CW, RTTY, SSB-D, FM and
> AM modes selection
> To select the desired mode of operation, push
> [MODE] one or more times, then push [MODE] for 1
> sec., if necessary. See the diagram at right for the
> order of selection.
> ? The selected mode is indicated in the function display.
> ?CW-å (CW reverse) mode selection
> qWhen selecting CW mode, push [DISPLAY] for 1
> sec. to enter quick set mode.
> wPush [MENU] one or more times to select item „Q3
> CW REV‰ during CW mode.
> ?[Y]/[Z] or [M-CH] can also be used.
> eRotate the main dial to select CW reverse.
> rPush [DISPLAY] to exit quick set mode.
> ?„CW-å‰ appears.
> ?åRTTY (RTTY reverse) mode selection
> qWhen selecting RTTY mode, push [DISPLAY] for 1
> sec. to enter quick set mode.
> wPush [MENU] one or more times to select item „Q2
> RTTY REV‰ during RTTY mode.
> ?[Y]/[Z] or [M-CH] can also be used.
> eRotate the main dial to select RTTY reverse.
> rPush [DISPLAY] to exit quick set mode.
> ?„åRTTY‰ appears.
> Note:If a desired mode cannot be selected, it may be
> hidden using initial set mode (p. 76). [DISPLAY]
> [MODE]
> [MENU][M-CH]
> [Y]
> [Z]
> OPERATING MODE SELECTION
> MODE
> Push
> momentarily
> Memory keyer
> set mode
> MODE
> Push
> for 1 sec.
> USB LSB
> FM AM
> SSB-D
> CW
> RTTY
> [MODE]
> Volume setting
> Rotate [AF] control to output a suitable audio level. [AF]
>
> AF
> RF/SQL
> Decreases
>
> Increases
> No audio output Max. audio output
>
> BASIC OPERATION
>
> 3
>
> Squelch and receive (RF) sensitivity
> Adjusts the RF gain and squelch threshold level. The
> squelch removes noise output from the speaker
> (closed position) when no signal is received.
>
> ?The squelch is particularly effective for FM mode. It is also
> available for other modes.
> ?The control can be set as the RF gain control only
> (squelch is fixed open) or squelch control (RF gain is fixed
> at maximum) in initial set mode (p. 79). See below right.
> ?The 11 to 12 o‚clock position is recommended for any setting of the [RF/SQL] control.
> ?When setting as RF gain/squelch control
> SET MODE
> OPERATION
> RF+SQL
> (default)
> Can be used in all modes.
> Functions as noise squelch or S-meter
> squelch in AM and FM modes; S-
> meter squelch only in other modes.
> SQL
> Operates as a squelch control.
> ?RF gain is fixed at maximum sensitivity.
> AUTO
> Operates as an RF gain control in
> SSB, CW and RTTY modes.
> ?Squelch is fixed open.
> Operates as a squelch control in AM
> and FM modes.
> ?RF gain is fixed at maximum sensitivity.
> Squelch is
> open.
> RF gain
> adjustable
> range
>
> ?When functioning as RF gain control (Squelch is
> fixed open; SSB, CW, RTTY only)
> Adjusting RF gain (Receive sensitivity)
> Normally, [RF/SQL] is set to the 11 o‚clock position.
> Rotate [RF/SQL] to the 11 o‚clock position for maxi-Adjustable
> range
>
> mum sensitivity.
>
> ?Rotating counterclockwise from the maximum position reduces sensitivity. Minimum RF gain
> ?The S-meter indicates receive sensitivity.
> ?When functioning as squelch control (RF gain is
> fixed at maximum)
> Noise squelch (FM mode)
> Adjusting squelch (Removing non-signal noise) Noise squelch
> Shallow Deep
>
> threshold
>
> S-meter squelch
> threshold
>
> Rotate [RF/SQL] clockwise when receiving no signal, (FM mode)
>
> until the noise just disappears.
>
> ?[RX] indicator light goes out.
> ?Rotating [RF/SQL] past the threshold point invokes the S-Squelch is S-meter
> squelch
>
> meter squelch˜ this allows you to set a minimum signal open.
> level needed to open the squelch.
> [RF/SQL]
> Recommended level
> Maximum
> RF gain
> S-meter
> squelch
> Noise squelch (FM mode)
> 3
> Maximum
> RF gain
>
> BASIC OPERATION
>
> Dial lock function
> The dial lock function prevents accidental changes
> caused by the tuning dial.
>
> . Push [LOCK] to turn the dial lock function ON and
> OFF.
> ?„LOCK‰ indicator lights while the dial lock function is
> activated.
> Lights while the dial lock function is activated.
> [LOCK]
> Basic transmit operation
> DTransmitting
> Before transmitting, monitor your selected operating
> frequency to make sure transmitting
> won‚t cause interference to other stations on
> the same frequency. It‚s good Amateur practice
> to listen first, and then, even if nothing is heard,
> ask „is the frequency in use‰ once or twice, before
> you begin operating on that frequency.
>
> [PTT]
>
> q Push [PTT] (microphone) to transmit.
>
> ?The [TX] indicator lights red.
> w Release [PTT] (microphone) to return to receive.
> HM-103
> DMaximum output power
>
> qPush [POWER] for 1 sec. to turn power OFF. [POWER]
> wWhile pushing [LOCK], push [POWER] to turn
>
> [Y]
> power ON and enter initial set mode.
> ePush [MENU] one or more times to select „1 MAX
> POWSET,‰ if necessary.
>
> ?[M-CH] or [Y]/[Z] can also be used.
> rRotate the main dial to select the desired maximum
> [Z]
> output power.
>
> ?Maximum output power is selectable „0.5,‰ „1,‰ „2.5,‰ „5‰
> or „10.‰
> ?Default setting is „10.‰
> tPush [POWER] to turn power OFF, and ON again.
> [M-CH] [LOCK][MENU]
> 25
> 1 MAX POWSET
>
> BASIC OPERATION
>
> 3
>
> DSetting output power QUICK SET MODE
>
> qPush [DISPLAY] for 1 sec. to select quick set mode.
>
> wPush [MENU] one or more times to select „Q1 RF
> POWER.‰
>
> eRotate the main dial to select the desired output.
>
> ?Output power is displayed in 11 steps (L, 1ˆ9 and H)
> but is continuously selectable.
> rPush [DISPLAY] to exit quick set mode.
>
> ?Available power
> Power supply
> voltage
> SSB/CW
> RTTY/FM
> AM*
> 13.8 V
> (DC power mode)
> 0.1ˆ10 W 0.1ˆ4 W
> 9.6 V
> (Battery mode)
> 0.1ˆ5 W 0.1ˆ2 W
>
> [MENU] [DISPLAY]
>
> Maximum output
> power is selected.
>
> *Carrier power
>
> Main dial
> PO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> USB
> Q1 RF POWER
> 3
> DSetting microphone gain QUICK SET MODE
>
> Microphone gain must be adjusted properly so that Main dial
> your signal does not distort when transmitted.
>
> qSelect SSB or another phone mode (AM or FM
>
> mode).
> wPush [DISPLAY] for 1 sec. to select quick set mode.
> ePush [MENU] one or more times to select „Q2
>
> MIC GAIN.‰
>
> ?The ALC meter is selected automatically when operat
> ing in SSB mode. [MENU] [DISPLAY]
> rWhile speaking into the microphone adjust the microphone gain so that the ALC meter does not
>
> ALC
> S1 53 7 9 20 40 60dB
> USB
> Q2 MIC GAIN
> Microphone gain
>
> peak past the ALC zone.
>
> is set to 5.
>
> tPush [DISPLAY] to exit quick set mode.
> ALC
> ALC zone
> 4 RECEIVE AND TRANSMIT
> Operating SSB
> q Push [(Y)BAND]/[(Z)BAND] to select the desired
> band.
>
> w Push [MODE] momentarily or push for 1 sec. to select LSB or USB mode.
>
> ?Below 10 MHz LSB is automatically selected; above
> 10 MHz USB is automatically selected.
> e Rotate [AF] control to set audio to a comfortable lis
> tening level.
> r Rotate the main dial to tune a desired signal.
>
> ?S-meter indicates received signal strength.
> t Push [PTT] (microphone) to transmit.
> ?The TX indicator lights red.
> y Speak into the microphone at your normal voice
> level.
>
> ?Adjust ŒMIC GAIN‚ at this step, if necessary. (p. 26)
> u Release [PTT] (microphone) to return to receive.
> D Convenient functions for receive
>
> [AF] [TX] indicator [MODE]
>
> Main dial„LSB‰ or „USB‰ appears
> [Y]
> [Z]
> LSB
> CH
> VFO A
> PO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> USB
> M1 SPL A/B XFC
> ?Preamp and attenuator (p. 46) ?AGC (auto gain control) (p. 48)
> . Push [P.AMP/ATT] momentarily to set the preamp . While „M4‰ is selected, push [(F-3)AGC] to select
> ON or OFF. AGC fast and AGC slow.
> ?Lights green when the preamp is set to ON. ?Push [DISPLAY] once or twice to select M.
> . Push [P.AMP/ATT] for 1 sec. to set the attenuator ?Push [MENU] one or more times to select M4.
> ON. ?„FAGC‰ appears when the fast time constant is se
> ?Push [P.AMP/ATT] momentarily to turn the attenua-lected.
> tor OFF.
> ?Lights red when the attenuator is set to ON. ?Noise reduction (p. 50)
> . While „S4‰ is selected, push [(F-2)NR] to turn the
> ?Noise blanker (p. 48) noise reduction ON and OFF.
> . While „M3‰ is selected, push [(F-2)NB] to turn the ?Push [DISPLAY] once or twice to select S.
> noise blanker ON and OFF. ?Push [MENU] one or more times to select S4.
> ?Push [DISPLAY] once or twice to select M. ? Push [(F-3)NRL] then rotate [M-CH] to adjust the
> ?Push [MENU] one or more times to select M3. noise reduction level.
> ?„NB‰ appears when the noise blanker is set to ON. ?„NR‰ appears when the noise reduction is set to ON.
> ?Push [(F-2)NB] for 1 sec. to enter the noise blanker
> set mode. ?Auto notch filter (p. 50)
>
> . While „S4‰ is selected, push [(F-1)ANF] to turn the
> ?IF shift (p. 47) auto notch filter function ON and OFF.
> . Rotate [SHIFT] control. ?„ANF‰ appears when the noise reduction is set to
> ON.
> D Convenient functions for transmit
>
> ?Speech compressor (p. 54) ?Carrier frequency control (p. 75)
> . While „M4‰ is selected, push [(F-2)COM] to turn . While „Q3‰ is selected, rotate main dial to adjust
> the speech compressor ON and OFF. the audio tone.
> ?Push [DISPLAY] once or twice to select M. ?Push [DISPLAY] for 1 sec. to enter the quick set
> ?Push [MENU] one or more times to select M4. mode.
> ?„COM‰ appears when the speech compressor is set ?Push [MENU] one or more times to select Q3.
> to ON.
> ?Push [(F-2)COM] for 1 sec. to enter the compression ?VOX (voice operated transmit) (p. 53)
> level set mode. . While „M4‰ is selected, push [(F-1)VOX] to turn
> the VOX function ON and OFF.
>
> ?Push [DISPLAY] once or twice to select M.
> ?Push [MENU] one or more times to select M4.
> ?„VOX‰ appears when the VOX function is set to ON.
> ?Push [(F-1)VOX] for 1 sec. to enter the VOX set mode.
>
> RECEIVE AND TRANSMIT
>
> 4
>
> Operating CW
> DConnections for CW
>
> Rear panel
> CW
> K4 CW PADDLE
> K4 CW PADDLE
> K4 CW PADDLE
> K4 CW PADDLE
> K4 CW PADDLE
> CW
> CW
> CW
> CW
> Paddle
> [KEY]
> [MICROPHONE]
> Straight key
> Microphone
> Keyer set mode settingRear panel4
> 8
> 12
> [ACC]
> 123
> 76 5
> 9101113
> For no break-in operation:
> Connect an external switch
> such as a foot switch; or use
> the RTTY SEND terminal for
> all bands. (See p. 38)
> See p. 31 for connection details:
> Paddle operation from front panel
> MIC connector.
> Normal
> Reverse
> Bug
> 4
>
> RECEIVE AND TRANSMIT
>
> DCW operation
>
> qConnect a paddle or straight key as at previous
> page.
> wPush [(Y)BAND]/[(Z)BAND] to select the desired
> band.
> ePush [MODE] momentarily to select CW mode.
> ?After CW mode is selected, push [MODE] for 1 sec. to
> toggle between CW and Memory keyer modes.
> rWhile the quick set mode item „Q3‰ is selected in
> CW mode, rotate main dial to select CW or CWå
> mode.
> ?Push [DISPLAY] for 1 sec. to enter the quick set mode.
> ?Push [MENU] one or more times to select Q3.
> ?Push [DISPLAY] momentarily to return to normal oper-
> ating mode.
> t Rotate [AF] control to set audio to a comfortable
> listening level.
> y Rotate the main dial to simultaneously tune a de-
> sired signal and its side tone.
> uSet CW setting in the keyer set mode.
> ?Push [DISPLAY] once or twice to select M.
> ?Push [MENU] one or more times to select M4.
> ?Push [(F-2)KEY] for 1 sec. to enter the keyer set mode.
> (p. 32)
> iSet CW break-in operation as semi break-in, full
> break-in or OFF.
> ?Push [MENU] one or more times to select „K1 BK-
> IN.‰
> ?Rotate the main dial to select CW break-in operation.
> .FULL: full break-in
> .on : semi break-in
> .OFF : no break-in (ACC socket connection is neces-
> sary as at previous page.)
> oSet the CW delay time when semi break-in opera-
> tion is selected.
> ?Push [MENU] one or more times to select „K2 BK-
> IN DELAY.‰
> ?Rotate the main dial to set the desired delay time (see
> p. 32 for details).
> !0 Keying to transmit, use the electric keyer or pad-
> dle to key your CW signals.
> ?The TX indicator lights red.
> ?The Po meter indicates transmitted CW signal
> strength.
> !1 Release keying to return to receive.
> BK
> VFO A
> CW
> CW
> K2 BK-IN DELAY
> M4 KEY1/4 AGC
> Delay time of 6.0
> dots is selected
> for semi break-in
> operation.
> CHPO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> CW
> K1 BK-IN
> Semi break-in
> operation is
> selected.
> Appears
> R
> CH
> VFO A
> PO
> S1
> 5
> 53 7 9 20 40
> 10
> 60dB
> CW
> M4 1/4 KEY AGC
> F 2
> [TX] indicator [MODE] Main dial
> [DISPLAY][F-2][MENU]
> [AF]
> [Y]
> [Z]
> „CW‰ or „CWå‰ appears
>
> RECEIVE AND TRANSMIT
>
> 4
>
> D Convenient functions for receive
>
> ?Preamp and attenuator (p. 46) ?IF shift (p. 47)
> . Push [P.AMP/ATT] momentarily to set the preamp . Rotate [SHIFT] control.
> ON or OFF.
> ?Lights green when the preamp is set to ON. ?Noise reduction (p. 50)
> . Push [P.AMP/ATT] for 1 sec. to set the attenuator . While „S4‰ is selected, push [(F-2)NR] to turn the
> ON. noise reduction ON and OFF.
> ?Push [P.AMP/ATT] momentarily to turn the attenua-?Push [DISPLAY] once or twice to select S.
> tor OFF. ?Push [MENU] one or more times to select S4.
> ?Lights red when the attenuator is set to ON. ?Push [(F-3)NRL] then rotate [M-CH] to adjust the
> noise reduction level.
> ?Noise blanker (p. 48) ?„NR‰ appears when the noise reduction is set to ON.
> . While „M3‰ is selected, push [(F-2)NB] to turn the
> noise blanker ON and OFF. ?Auto notch filter (p. 50)
>
> ?Push [DISPLAY] once or twice to select M. . While „S4‰ is selected, push [(F-1)ANF] to turn the
> ?Push [MENU] one or more times to select M3. auto notch filter function ON and OFF.
> ?„NB‰ appears when the noise blanker is set to ON. ?„ANF‰ appears when the noise reduction is set to
> ?Push [(F-2)NB] for 1 sec. to enter the noise blanker ON.
> set mode.
> ?1/4 function
> ?AGC (auto gain control) (p. 48) . While „M4‰ is selected, push [(F-1)1/4] to turn
> . While „M4‰ is selected, push [(F-3)AGC] to select the 1/4 function ON and OFF.
> AGC fast and AGC slow. ?Push [DISPLAY] once or twice to select M.
> ?Push [DISPLAY] once or twice to select M. ?Push [MENU] one or more times to select M4.
> ?Push [MENU] one or more times to select M4.
> ?„FAGC‰ appears when the fast time constant is selected.
> 4
> D Convenient functions for transmit
>
> ?Break-in function (p. 32)
> . While „M4‰ is selected, push [(F-2)KEY] for 1 sec.
> to enter the keyer set mode.
> ?Push [DISPLAY] once or twice to select M.
> ?Push [MENU] one or more times to select M4.
> . Rotate the main dial to select the break-in OFF,
> semi break-in or full break-in.
> ?„BK‰ or „F-BK‰ appears when the semi break-in or full
> break-in is set to ON, respectively.
> DCW reverse mode QUICK SET MODE
>
> The CWå (CW Reverse) mode receives CW signals
> with a reverse side CW carrier point like that of LSB
> and USB modes. Use this mode when interference
> signals are near the desired signal and you want to
> change the interference tone.
>
> qSelect CW mode with [MODE].
>
> [MODE] Main dial
> [DISPLAY][MENU]
> wPush [DISPLAY] for 1 sec. to enter quick set mode.
> ePush [MENU] one or more times to select „Q3 CW
>
> ? Receive audio tone response
> REV,‰ then rotate the main dial to select CW and
>
> (Normal) CW (Reverse) CWå
>
> CWå modes.
>
> ?Check the interference tone. 600 Hz
> rPush [DISPLAY] momentarily to exit quick set mode.
> 600 Hz
> inteference BFO inteference signal
> signal BFO
> RECEIVE AND TRANSMIT
>
> DCW pitch control
>
> The received CW audio pitch and monitored CW
> audio pitch can be adjusted to suit your preferences
> (300 to 900 Hz) without changing the oper

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