Operating your scanner, Turning on the scanner and setting squelch, Storing known frequencies into channels – Radio Shack 20-501 User Manual
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Beyond the Basics
operating your scanner
turning on the scanner and
setting squelch
Your scanner is preprogrammed at the factory with
150 of the most frequently used frequencies in
Channels 1 to 150. You can scan these frequencies
as soon as you turn on the scanner.
Note: Make sure the scanner's antenna is connected
before you turn it on.
Turn SQUELCH fully counterclockwise.
Press and hold
for about two seconds to turn
the scanner on, and then turn VOLUME clockwise
until you hear a hissing sound.
If the scanner is scanning, press HOLD to stop
scanning, and then turn SQUELCH clockwise
until the hissing stops.
Press SCAN. See “scanning the stored channels”
storing known frequencies
into channels
You can locate and store specific frequencies into
channels for later use. To assist you in locating a
desired frequency from the scanner's wide range,