User's Manual

20-527 Owner’s Manual Draft
Page 17 of 60
OPERATION
Turning on the Scanner and Setting Squelch
1. To turn on the scanner, turn VOLUME clockwise. Multi-system Trunking Scanner appears. After about
3 seconds, you might hear a hissing sound. Then adjust VOLUME to a comfortable level.
2. Turn SQUELCH fully counterclockwise until the indicator points to MIN, then turn SQUELCH clockwise
until the hissing sound stops.
3. To turn off the scanner, turn VOLUME counterclockwise to OFF.
Notes:
• The scanner does not scan if there are no frequencies stored in channels. If the scanner does not scan
and you have already stored frequencies in channels, turn SQUELCH further clockwise.
• If the scanner picks up unwanted, partial, or very weak transmissions, turn SQUELCH clockwise to
decrease the scanner’s sensitivity to these signals. If you want to listen to a weak or distant station, turn
SQUELCH counterclockwise.
• If SQUELCH is adjusted so you always hear a hissing sound, the scanner will not scan properly.
• To ensure the scanner operates properly while in the trunking mode, we suggest you set SQUELCH
using the steps listed above.
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. Also see the supplied Trunking Guide.
Follow these steps to store frequencies in to channels.
Notes:
• If you are storing frequencies for an EDACS system, you must store them in order, with the first
frequency in channel 1 for the current bank. For example, if you want to store frequency of 150.0100,
150.0200, 150.0300, and 150.0400 MHz, you must store them in Channels 1, 2, 3, and 4 respectively.
• When M is on the display, you can also select your desired bank and channel number with the FUNC
and arrow keys.
1. Press MANUAL, enter the bank (0-9) and channel number (00-99) where you want to store a
frequency, then press MANUAL again. M and the bank and channel number appear at the upper left
corner of the display (for example: M000).
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