User's Manual

Scanner Setup

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.