User Manual
28
5. Basic Operation
5
5-3 Adjusting Squelch Level
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What is "squelch"?
The Squelch function activates the speaker only when signals at a specied
level or higher are received. This makes it easier to catch target signals by
eliminating the static noise which occurs when no signals are received.
When the squelch level is increased, the receiver can receive strong signals
with less static noise, but cannot receive weak signals.
"To open the squelch" means to receive signals and activate the speaker.
"To close the squelch" means the opposite. The strength of the signals
required to open the squelch is determined by the squelch setting level.
This level is adjustable because it varies in some degree depending on the
location of signal reception and receiving frequency.
The squelch can be adjusted within the range of 10 levels (0 to 9).
The default is set to 3.
5-3-1 Operating procedure
Current frequency
Squelch level
1
Hold down the [MONI] key and
rotate the dial.
The LCD should look something like the
gure on the right.
The squelch level increases when the dial
is rotated clockwise, and decreases when
the dial is rotated counterclockwise.
• To keep the squelch constantly open, set the squelch level to 0
.
• Scanning is disabled while the squelch is open. To enable scanning,
adjust the squelch level until you cannot hear any static.