Furuno FM-4000 Owner's Manual page 18

[ H/L ] Key
Toggles between 25 W (High) and 1 W (Low) power. When the [ H/L ] key
is pressed while the transceiver is on CH13 or CH67, the power will
temporarily switch from LO to HI power until the PTT is released. The
[ H/L ] key does not function on transmit inhibited and low-power only
channels.
CHANNEL SELECTOR KNOB
This rotary knob selects channels and to chooses menu items (such as
the DSC menu, Radio Setup and DSC Setup menu). The [ UP (
[ DOWN ( )] keys on the microphone can also be used to select channels
and menu items.
Secondary Use
Press the [ F ] key first then press the [ 3 ( SCAN )] key, and turn the CHAN-
NEL selector knob while holding down the [ 3 ( SCAN )] key to confirm
memory channels for scanning.
Adjusts the PA output level while in PA/FOG mode.
KEYPAD
[ 1 ( DIM )] Key
When in the radio mode, this key directly inputs the digit "1" in a channel
number.
Secondary use
Press the [ F ] key first, then press the [ 1 ( DIM )] key to access the LCD
Dimmer menu. See section "10.16 LCD DIMMER" for details.
[ 2 ( MEM )] Key
When in the radio mode, this key directly inputs the digit "2" in a channel
number.
Secondary use
Press the [ F ] key first then press the [ 2 ( MEM )] key to memorize the
selected channel into the transceiver scan memory for scanning. Re-
peating the same procedure ([ F ]
the scan memory. See section "10.13 SCANNING" for details.
[ 3 ( SCAN )] Key
When in the radio mode, this key directly inputs the digit "3" in a channel
number.
Secondary use (Depends on the transceiver version)
Press the [ F ] key first then press the [ 3 ( SCAN )] key to start and stop the
scanning of programmed channels. See section "10.13 SCANNING" for
details.
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[ 2 ( MEM )]) , deletes the channel from
)] /
FM-4000