Making a voice mayday call, Setting the volume, Setting the squelch level – Uniden Waterproof DSC Marine Radio UM380 User Manual
Page 17: Changing the channel, Making a transmission
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English
x
Press
CHANNEL UP
on the radio or the microphone to move up a line in the menu; if you are
at the top line in the menu, the cursor jumps to the bottom of the menu.
x
Press
ENT-1W/25W
to choose the selected item.
x
Press
CHANNEL DOWN
on the radio or the microphone to move down a line in the menu; if
you are at the bottom line of the menu, the cursor jumps to the top of the menu.
x
Press
CLR-SCAN
to go back to the previous menu screen.
x
From any menu screen, choose Exit or press and hold
CALL-MENU
to close the menu screen.
Making a voice MaYDaY call
(see inside front cover)
Setting the volume
Turn the volume knob clockwise to increase the speaker volume; turn it counter-clockwise to
decrease the volume.
Setting the squelch level
The squelch feature reduces the level of static on the speaker by filtering out the background
channel noise. At the lowest squelch level, the speaker plays all radio signals, including any
noise on the channel. Setting the squelch level higher filters out channel noise and lets only
actual radio transmissions through.
While listening to a channel, adjust the SQUELCH knob until the noise is filtered out and you
can only hear the transmission. If you switch to a channel with a lot of noise or with a weak
transmission, you may need to adjust the squelch level again.
#
nOte: setting the squelch level too high may prevent you from hearing weaker
transmissions. if you are having difficulty hearing a transmission, try setting the squelch
level lower.
Changing the channel
Press
CHANNEL UP
and
CHANNEL DOWN
briefly to scroll through the channels one channel at a
time. Press and hold
CHANNEL UP
or
CHANNEL DOWN
to quickly scroll through the channels.
Making a transmission
To make a transmission, press and hold the microphone
PUSH TO TALK
button. Release the
PUSH TO TALK
button when you’re finished talking to let the other party respond.
Weak signals
No
Squelch
Medium
Squelch
High
Squelch
Strong signals
Noise
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