Furuno FM-4000 - Manual (Page 22)

FM-4000 Page 22
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. Rotate the VOL knob clockwise until noise or audio from the speaker is at
a comfortable 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 panel may be used to directly select channels. For
example, to select CH68:
1. Press [6(NAV)].
2. Press [8(PA)].
3. Press [ENT].
In the USA and Canadian modes, press and hold down the [0] key to se-
lect the “A” channel. Example to select CH22A:
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 appears if the channel is busy.