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Selected Functions of STANDARD C508A Transceiver

Push V/M. Confirmed by frequency numbers only (no channel number or C) in display.
BAND cycles through 4 ranges: 100-200 MHz (108-141.995 normally AM, other FM); 300-400; 400-520; & 700-900 MHz. Transmits 144 - 147.95 MHz & 438 - 449.995 MHz.
Repeater offset (simplex/+/-) & offset frequency are SET functions as shown below.
Tune VFO using Dial (knob on case top). To tune in 1 MHz steps, hold in F & tune Dial.
Squelch adjusted in SET. To override, push MONI (if in Repeatr Mode also reverses freq).
To scan a 1 MHz range, push SC. To scan band, hold in F & push SC. SC stops scanning.
Use Dial to change direction of scan.

Push V/M. Memory Mode confirmed by channel no. (00-59) in display. Select channel via Dial. To scan memories while in Memory Mode push SC. Other scan modes via SET.
Call Channel is programmable in both 144 & 440 MHz bands. Select band, push CALL.

[C508A has 60 memories (00-59) + CALL. Each holds 1 freq. + offset & tones or 2 receive freqs.]
In VFO Mode, select the desired frequency, offset, & tones.
Hold in F & push V/M. Use Dial to select memory channel (00-59).
Again Hold in F & push V/M to enter frequency & return to VFO Mode.
To program repeater offset, frequency, & tone, select channel & use SET Mode.
To erase a memory, select channel, push SET, turn Dial to m CLr, & push F.

SET (Menu) Functions

23 functions are controlled in Set Mode, as shown below with initial indications. To use, push SET. Turn Dial to select desired function. Hold in F & turn Dial to change menu function as desired. Push SET again to set change & return to previous mode.

St 5: Change tuning freq.step F-St 1.0: Change freq.step to wide (1 MHz) rPt:oF: Rptr.offset on/off

t59:oF: Tone Code/Sqlch on/off CF 100.0: Set tone freq. OF 0.00: Set repeater offset freq.

SP 433.0: Sets Split Memory (allows 2 freqs. in a channel when dUP:Of.)

SA:Of: Set Btty Save time APO:oF: Set Auto.Pwr.Off time PL:oF: PTT Lock

FL:oF: Freq.Lock FL CH:oF: Set Dial for freq.lock beEP:on: Beep on/off

rF 59L:oF: Set squelch to no.of S-units bnd:on: Dial changes freq. across bands

m CLr: Clears memory CH:of: Displ shows Chan.No. instead of freq. mm:oF: Sets chs. to scan

bm5:oF: Sets block memory scan (Block 0=Chs.00-09, 1=Chs.10-19,etc.) Scn:P: Changes scan type

At Am:on: Sets automatic AM Mode (108-142 Mhz) Am:on: AM on/off manually

This guide has been prepared as a public service to provide, on one page, certain limited, highly general, simplified data about radio hobby equipment, especially for persons with disabilities or challenges. This is not a complete manual. No one should use any electronic or electrical equipment without first becoming fully aware of all data in the original manual. Failure to understand data in the original manual may result in injury or death to the user and others, damage to the equip­ment, operation in violation of FCC and other laws and regulations, and other seri­ous consequences. There is no warranty of this guide’s accuracy, completeness, or conformity to manufacturer’s standards. Its use is strictly at the user’s discretion and risk.

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