Furuno FM-4000 - Manual (Page 19)

Page 19 FM-4000
[4(DW)] Key
When in the radio mode, this key directly inputs the digit “4” in a channel
number.
Secondary use
Press the [F] key first then press the [4(DW)] key to scan for voice com-
munications on the priority channel and another selected channel until
a signal is received on either channel (Dual Watch). See section “10.12
DUAL WATCH (TO CH16)” for details.
[5(IC)] Key
When in the radio mode, this key directly inputs the digit “5” in a channel
number.
Secondary use
Press the [F] key first then press the [5(IC)] key, when the optional Re-
mote MIC is connected, to activates Intercom function between radio
and Remote MIC. See section “10.17 INTERCOM OPERATION” for de-
tails.
[6(NAV)] Key
When in the radio mode, this key directly inputs the digit “6” in a channel
number.
Secondary use
Press the [F] key first then press the [6(NAV)] key, and the LCD displays
NAV GPS Data; Time, SOG (Speed Over Ground), and COG (Course
Over Ground). Requires a GPS receiver, connected to the FM-4000
with the accessory cable. See section “8.5 ACCESSORY CABLE” for
details.
[7(SCRM)] Key
When in radio mode, this key directly inputs the digit “7” in a channel
number.
Secondary use
Press the [F] key first then press the [7(SCRM)] key, when the optional
CVS2500 Voice Scrambler Unit is installed, to operate the Voice Scram-
bler function. See section “10.18 VOICE SCRAMBLER” for details.
[8(PA)] Key
When in the radio mode, this key directly inputs the digit “8” in a channel
number.
Secondary use
Press the [F] key first then press the [8(PA)] key to operate the 30 Watt
PA function. See section “10.14 PA/FOG OPERATION” for details.