Furuno FM-4000 - Manual (Page 33)

Page 33 FM-4000
10.17.2 Calling
Hold down the [5(IC)] key when the “Intercom” mode is activated to send a
calling beep to the Remote MIC.
NOTE
When both Remote MICs are set to the Intercom
mode, the FM-4000 is temporarily disabled until
both Remote MICs exit the Intercom mode.
10.18 VOICE SCRAMBLER
If privacy of communications is desired, an optional CVS2500 four-code voice
scrambler (VS) can be installed in the transceiver. Contact your dealer to have
the CVS2500 installed.
1. Turn the CHANNEL selector knob to select the channel to be scramble.
Note: The voice scrambler is inoperative on CH16 and CH70.
2. Press the [F] key followed by the [7(SCRM)] key to
activate the voice scrambler. “VS VS VS VS VS ” and scrambler
number (“0 0 0 0 0 ,” “1 1 1 1 1 ,” “2 2 2 2 2 ,” or “3 3 3 3 3 ”) appear.
3. Press the [F] key, then press and hold down the
[7(SCRM)] key until the “Scrambler
Scrambler Scrambler Scrambler Scrambler ” menu appears.
4. Turn the CHANNEL selector knob to change the
scrambler code. The scrambler code can be set from
“0
0 0 0 0 ” to “3 3 3 3 3 .”
5. Press the [ENT] key to save the scrambler code and return to the radio
operation mode (with voice scrambler).
6. Monitor the channel before transmitting.
7. To disable the voice scrambler, press the [F] key followed by the [7(SCRM)]
key again. “VS VS VS VS VS ” and scrambler number (“0 0 0 0 0 ,” “1 1 1 1 1 ,” “2 2 2 2 2 ,” or “3 3 3 3 3 ”) disappear.