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•
MEMO
5.Basic Operation
When nothing can be heard
•When the squelch is closed or the mute function is activated,
received signals can't be heard even when the volume is
increased. Please read "Adjusting the Squelch (P.31 )" and "Mute
Function (P.32)" for details.
( 5-4 Adjusting the Squelch
)
•About the Squelch Function
Squelch is a function that allows audio from the speaker only when receiving a
r:m
signal greater than a certain level. It eliminates unwanted noise heard from the
~
speaker when there are no received signals to monitor. Increasing the squelch
level allows the reception of strong signals but weak signals will not be received.
When the squelch is active and audio is received, it is described as "opening the
squelch" and the opposite is described as "closing the squelch". When the
squelch opens depends on how strong the received signal is and is determined
by the squelch setting.
The squelch level may need occasional adjustment as conditions warrant, such
as the need to monitor a weak signal.
There are 1 O squelch levels that can be adjusted in a range from 0 to 9.
5-4-1 Operation
•Adjusting the Main Band Squelch
Press the main dial once and rotate the
upper main dial.
•Adjusting the Sub Band Squelch
Press the sub dial once and rotate the upper
sub dial.
[WI
es@i)
l/FO
223.500
MAIN Squelch
3
SUB Squelch
3
\IFO
915.000
Fu
FU
The squelch level increases when rotating the dial clockwise and decreases
when rotating the dial counterclockwise.
•When you want to open the squelch as a permanent setting, set the squelch
level atO.
·When the squelch is open, the scan functions don't operate. When you want to
operate the scan functions, adjust the squelch level until no noise can be heard.
31
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