Icom IC-M57

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VHF MARINE TRAN CEIVER IC-M57 °
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SQUELCH
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Mi Front panel
@ SPEAKER
@ FUNCTION DISPLAY
Displays the selected channel num-_
ber, etc.
© POWER SWITCH/VOLUME
CONTROL [PWR/VOL]
Turns power ON and OFF and
adjusts the speaker volume.
© MICROPHONE
@ PTT (Push-to-talk) SWITCH [PTT]
Push and hold to transmit; release
to receive.
@ SQUELCH CONTROL [SQUELCH]
-Rotate clockwise to eliminate au-
dio noise.
-Deep rotation activates the RF
attenuator to cut weak signal re-
ception.
@ CHANNEL 16 SWITCH [CH 16]
Selects Channel 16. Used for emer-
gency and distress calls and as a call
channel. .
© DIAL/ MODE SWITCH [D/MODE]
Selects U.S.A. or international chan-
nels.
© DUAL WATCH SWITCH [DUAL]
Starts and stops dual watch.
@ WEATHER CHANNEL SWITCH [WX]
Selects weather channels.
@ DIMMER SWITCH [DIM]
Turns the function display backlighting -
ON or OFF. |
@ TRANSMIT POWER SWITCH
[HI/LOW]
Selects high or low transmitter power.
@® CHANNEL SELECTOR
Selects an operating channel.