Radio Shack PRO-89 - Manual (Page 26)

26
OPERATION
TURNING ON THE SCANNER/SETTING
VOLUME AND SQUELCH
1. Turn SQUELCH until the indicator points to MIN before you
turn on the scanner.
2. To turn on the scanner, turn VOLUME clockwise until you
hear a hissing sound.
3. Turn SQUELCH clockwise, just until the hissing sound
stops.
Notes:
• To listen to a weak or distant station, turn SQUELCH
counterclockwise. If reception is poor, turn SQUELCH
clockwise to cut out weak transmissions.
• If SQUELCH is adjusted so you always hear a hissing
sound, the scanner will not scan or search properly.
4. To turn off the scanner when you finish, turn VOLUME
counterclockwise to OFF .
STORING KNOWN FREQUENCIES INTO
CHANNELS
Good references for active frequencies are the RadioShack
Police Call Guide including Fire and Emergency Services, Offi-
cial Aeronautical Frequency Directory, and Maritime Frequen-
cy Directory. We update these directories every year, so be
sure to get a current copy.
Follow these steps to store frequencies into channels.
1. Press MAN , enter the channel number (1–200) where you
want to store a frequency, then press PGM .