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VHF 100/200 Series Owner’s Manual 5
Basic Operation
Basic Operation
Turning the Radio On and Off
IMPORTANT: To use the DSC capabilities of your radio, you must rst enter an MMSI
number. See page 15 for more information.
To turn on the radio, press and hold the 16/9 key. If you have not entered a Mobile Maritime
Safety Identity (MMSI) number, you must press the CLEAR key to access the Home
screen. To turn off the radio, press and hold the 16/9 key.
TIP: For information on enabling auto power-on, see page 31.
Adjusting the Radio Volume
To turn up the radio volume, turn the Volume knob clockwise.
To turn down the radio volume, turn the Volume knob counterclockwise.
TIP: To set the appropriate volume level, rst turn the squelch level to off, and then adjust the
volume. See below for more information on adjusting the squelch level.
Adjusting the Volume on a GHS 10 or a GHS 10i
1. Press the VOL/SQL key until the screen displays “CURRENT VOLUME.”
2. Turn the Channel knob on the handset to adjust the level.
Adjusting the Squelch on the Radio
The squelch control allows you to suppress unwanted static when receiving.
1. When receiving, rotate the Squelch knob counterclockwise until you hear audio.
2. Rotate the Squelch knob clockwise until there is no background noise.
Adjusting the Squelch on a GHS 10 or a GHS 10i
1. Press the VOL/SQL key until the screen displays “CURRENT SQUELCH”.
2. When receiving, rotate the Volume knob counterclockwise until you hear audio.
3. Rotate the Volume knob clockwise until there is no background noise.
Selecting Channels
Turn the Channel knob clockwise or counterclockwise to change channels.
To change channels using the microphone, press the up or down arrow key. To scroll
quickly through the channels, press and hold the up or down arrow key.
See page 36 for lists of International, Canadian, and USA channels.
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