Radio Shack 20-521 Using the Keylock, Using the Display Backlight, Changing Search Speeds

USING THE KEYLOCK

Once you program your scanner, you can protect it from accidental program changes by turning on the keylock feature. When locked, the only controls that operate are SCAN, MAN, KEYLOCK, VOLUME/OFF, and

SQUELCH.

Note: The keylock does not prevent the scanner from scanning channels.

To turn on the keylock, hold down KEYLOCK until K/L appears. To turn it off, hold down KEYLOCK until K/L disappears.

USING THE DISPLAY BACKLIGHT

You can turn on the display light for easy viewing at

night. Press to turn on the display light for 15 sec- onds. To turn off the light before 15 seconds elapse, press the button again.

CHANGING SEARCH SPEEDS

The PRO-91 has two search speeds.

Normal Search

Hypersearch

100 steps/second

300 steps/second

To switch between the normal and Hypersearch speeds during limit search or direct search, press H/S. HYPER appears during Hypersearch.

Note: You can use Hypersearch only in the 5 kHz step bands (29–54 MHz and 137–174 MHz).

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