20-427 Owner’s Manual Draft
to decrease the scanner’s sensitivity to these signals. If you want to listen to a weak or
distant station, turn SQ counterclockwise.
•
If SQ is adjusted so you always hear a hissing sound, the scanner will not scan properly.
•
If SQ is adjusted precisely at the threshold where the hissing sound stops, the radio will
be most sensitive to very weak signals. The radio may also receive unwanted noise or
signals that are too weak to understand. Most users prefer to position the squelch control a
little bit past the point of threshold to avoid receiving noise or signals that are too weak to
understand.
storing known frequencies into channels
Good references for active frequencies are RadioShack’s Police Call, Aeronautical
Frequency Directory, and Maritime Frequency Directory. We update these directories every
year, so be sure to get a current copy.
Follow these steps to store frequencies into channels.
Note: When MAN appears on the display, you can use FUNC and the arrow keys to select
your desired bank and channel number.
1. Press MAN, channel number (1-300) where you want to store a frequency, then press
MAN again. MAN and the channel number appear at the display.
Notes:
•
Press FUNC. Then press /¥ or ¥/. The bank moves in the direction of the arrow pressed.
•
Press FUNC. Then hold down /¥ or ¥/. The bank moves continuously in the assigned
direction.
•
Press /¥. The channel number moves upward one by one. Or, press ¥/. The channel
number moves downward one by one.
•
Hold down /¥ or ¥/. The channel moves continuously in the assigned direction.
2. Press PROG. MAN changes to PGM.
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