Locks a valid entered frequency into the active channel's permanent memory.

Inside the box you should find:

Once your channels are programmed, you can scan through the stored frequencies by pressing the SCAN button. The scanner will stop on active frequencies.

Your squelch is set too low. Turn the knob clockwise until the noise cuts out. This allows the scanner to stop only when a real signal is broadcasting. The Scanner Stops on Empty Channels

: Press MANUAL , then type the channel number (e.g., 1 ) where you want to store a frequency. Press MANUAL again to jump to that channel. Enter Programming Mode : Press PROG or PROGRAM .

The is a classic, reliable 20-channel programmable hand-held radio scanner . Originally sold through Tandy/RadioShack and related electronics distributors, this scanner allows enthusiasts to monitor non-scrambled radio transmissions, including police, fire, emergency medical services, amateur radio, and marine bands.