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Turning on the Scanner and Setting Squelch
1. Turn the VOLUME and SQUELCH knobs
clockwise to about their mid-point (12:00
o'clock) position.
Note: Make sure the scanner's antenna is connected
before you turn it on.
2. Press TUNE.
3. Turn SQUELCH down (counterclockwise) until
you hear noise.
4. Turn SQUELCH up (clockwise) a little
past where the noise stops. The higher
the squelch is set, the stronger the signal
required to break the squelch.
5. If noise starts breaking the squelch, turn
SQUELCH up to decrease the scanner's
sensitivity. To hear weaker signals, turn
SQUELCH down to increase its sensitivity.
Squelch and Attenuator
The squelch and attenuator control the scanner
sensitivity. If squelch is set too high, the scanner
may scan slowly or stop on noise or silence. If this
happens, adjust squelch using the steps above,
or for conventional channels, set the correct
subaudible squelch mode. See "Appendix B:
Detailed Menu Reference: Conv Menu" on page 108.
With the attenuator on, the scanner might not
receive weak signals, but immunity to adjacent
strong signals is improved. You can reduce
interference using two attenuator modes:
• Global – The attenuator setting is applied to
all channels, bands, or groups.
• Normal – Lets you set the attenuator in each
channel, band, or group.
Note: You cannot set the attenuator while scanning.
Scanner Setup
23
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