Making A Voice Mayday Call; Setting The Volume; Setting The Squelch Level - Uniden UM455 Owner's Manual

Using Your Radio
• An arrow on the left side indicates the current selection.
• Press
CHANNEL UP
you are at the top line in the menu, the cursor jumps to the bottom of the menu.
• Press
ENT-1W/25W
• Press
CHANNEL DOWN
menu; if you are at the bottom line of the menu, the cursor jumps to the top of the
menu.
• Press
CLR-SCAN
• From any menu screen, choose Exit or press and hold
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.
Strong signals
Weak signals
Noise
on the radio or the microphone to move up a line in the menu; if
to choose the selected item.
on the radio or the microphone to move down a line in the
to go back to the previous menu screen.
No
Squelch
Medium
Squelch Squelch
19
to close the menu
CALL-MENU
High