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Page 19FM-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.