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GX5500SPage 24
10 BASIC OPERATION
10.1 PROHIBITED COMMUNICATIONS
The FCC prohibits the following communications:
• False distress or emergency messages:
• Messages to “any boat” except in emergencies and radio tests;
• Messages to or from a vessel on land;
• Transmission while on land;
• Obscene, indecent, or profane language (potential fine of $10,000).
10.2 RECEPTION
1. After the transceiver has been installed, ensure that the power supply and
antenna are properly connected.
2. Press and hold the PWR key until the radio turns on.
3. Turn the SQL knob fully counterclockwise. This state is known as “squelch
off”.
4. Turn up the VOL knob until noise or audio from the speaker is at a comfort-
able level.
5. Turn the SQL knob clockwise until the random noise disappears. This state
is known as the “squelch threshold.”
6. Turn the CHANNEL selector knob to select the desired channel. Refer to
the channel chart on page 91 for available channels.
7. The keypad on the front may be used to directly select channels. Example
to select channel 68:
1. Press [6(NAV)]
2. Press
[
8
(
PA
)]
3. Press
[
ENT
]
In the USA and Canadian modes, press and hold in the
[
0
]
key to select
the “A” channel. Example to select channel 22A:
1. Press
[
2
(
MEM
)]
2. Press
[
2
(
MEM
)]
3. Press
[
0
]
until “A” appears to the right of the channel number
4. Press
[
ENT
]
8. When a message is received, adjust the volume to the desired listening
level. The “ ” indicator in the LCD is displayed indicating that the
channel is being used.