User's Manual

20-405 User’s Guide DRAFT
• Set the volume to the lowest setting. Then turn on your audio device and adjust the volume to a
comfortable level.
• Avoid increasing the volume. Your ears will adapt to the volume level, so a level that does not
cause discomfort could still damage your hearing.
Connecting an Extension Speaker
In a noisy areas, an amplified extension speaker (available from your local RadioShack store
or www.RadioShack.com
), might provide more comfortable listening. Plug the speaker cable’s
1/8-inch (3.5mm) mini plug into your scanner’s HEADPHONE jack.
Note: Use an amplified speaker with this scanner. Non-amplified speakers do not provide sufficient
volume for comfortable listening.
Basic Operation
Turning on the Scanner and 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, slide POWER to ON. A welcome message appears. After about 3 seconds,
you might hear a hissing sound. Then adjust VOLUME to a comfortable listening level.
3. Turn SQUELCH clockwise, just until the hissing sound stops.
To perform a quick check of scanner operation, press WX. If you are near a NOAA weather station,
you should hear weather information.
Notes:
• Make sure the scanner’s antenna is connected before you turn it on.
• 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.
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