Uniden UM423 AM Owner's Manual page 6

Am marine radio
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Getting Started
Front panel button functions
Button
MENU
CHANNEL UP
CHANNEL DOWN
88 / DUAL
SIREN
LCD
display
A M T R A N S C E I V E R
VHF DSC TRANSCEIVER
ANL / NB
button
88 / DUAL
(
-
)
DUAL
WATCH
BUTTON
Press to...
Select the option in MENU mode
Move up one channel at a time.
Move down one channel at a time.
Go to Channel 88
Initiate siren tone for one cycle
MENU /
ENTER
BUTTON
CHANNEL UP
DOWN
CALL / PA
(public
address)
/
SCAN
MEM
button
(channel
memory)
button
6
-
VOLUME
PWR
(power) knob
(turn clockwise
to increase
volume)
&
buttons
knob
SQUELCH
(turn clockwise
to decrease
SIREN
channel noise)
button
Press and hold to...
Store new setting and exit
MENU mode
Move quickly up the
channels.
Move quickly down the
channels.
Dual Watch mode (see
page 10).
Initiate continuous siren
output
Microphone
cord

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