Uniden MC-4700 - Manual (Page 9)

MtC/RF GAIN CONTROL DIGITAL LED CH88 INDICATOR
OPERATING CONTROLS
Your Barracuda designed for ease of operation, is provided with the following operat­
ing controls:
1. OFF/ON VOLUME: To turn the transceiver on, rotate the control clockwise
past dick. To turn the transceiver off, rotate the control counterclockwise past
click. Rotate the control clockwise for a comfortable audio volume level.
2. CHANNEL SELECTOR: This switch is used to select any one of the 10 Marine
Band channels. Channel 88 has been reserved by the D.O.C. for emergency
communications involving the immediate safety of life of individuals or im­
mediate protection of property, Channel 88 may also be used to render assist­
ance to a seafarer.
3. MODE SELECTOR: This switch selects AM or SSB (USB) mode of operation.
This selector changes the mode of operation of both transmitter and receiver
simultaneously.
Set the selector to the mode on which you wish to communicate. For easier
identification of the mode, LED mode indicator is provided in two different
colors, green for AM and red for SSB (USB).
4. SQUELCH: The squelch control is normally set to a position which just elimi­
nates undesired background noise with no signal present. With the audio volume
adjusted to a satisfactory level, rotate the Squelch control clockwise to the point
where the sound from the speaker is cut off. In this position, there will be no
sound from the speaker until a signal is received. In order to hear weak signals, it
may be necessary to rotate the Squelch control counterclockwise, allowing some
background noise to be heard.
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