Radio Shack PRO-83 - Manual (Page 51)

51 Beyond the Basics
To turn off the priority feature, press FUNC +
PRIORITY. PRI disappears.
Using Keylock
Use the scanner's keylock to protect it from
accidental program changes. When the scanner's
keys are locked, the only controls that operate are
SCAN, FUNC, HOLD, ,
KEYLOCK, and .
To turn on keylock, press FUNC + KEYLOCK.
appears. To turn off keylock, press FUNC +
KEYLOCK. disappears.
Note: Using keylock does not prevent the scanner
from scanning channels.