Radio Shack PRO-90 - Manual (Page 30)

30
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 , MANUAL , LOCK/ , VOLUME/OFF , and SQUELCH .
Note: The keylock does not prevent the scanner from
scanning channels.
To turn on the keylock, hold down LOCK/ until
appears. To turn it off, hold down LOCK/ until
disappears.
USING THE DISPLAY BACKLIGHT
You can turn on the display backlight for easy viewing at
night. Press
LOCK/ to turn on the display backlight
for 15 seconds. To turn off the backlight before 15 sec-
onds elapse, press the button again.
CHANGING SEARCH SPEEDS
The PRO-90 has two search speeds for a limit search.
Normal Search HyperSearch
100 steps/second 300 steps/second
20-520.fm Page 30 Wednesday, August 4, 1999 3:06 PM