22
Scanner Setup
23
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 101.
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.
To set the attenuator mode in the Global Menu:
1. Press
PROG
for Program Mode.
2. Press
GLOB
softkey to access GLOB menu.
3. Press
p
or
q
to scroll to
Atten Mode
.
4. Press
t
or
u
to select
Global
or
Normal
.
5. When attenuator is set to Global, you can set Global attenuator
on or off. Press
p
or
q
to scroll to
Global Atten.
6. Press
t
or
u
to select on or off.
7. Press
SAVE
softkey to save the new setting.
To set the attenuator mode using the ATT key:
When the scanner is in Manual Mode, Program Mode, Search Mode,
Signal Stalker Mode, or when the scan stops:
•
Press
ATT
to toggle on and off the attenuator setting.
•
Press
FUNC ATT
to toggle on and off the global attenuator setting.
Summary of Contents for PRO-652
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