cord, unplug the power cord from the cigarette -lighter socket and clean
the socket to remove ashes and other debris.
CONNECTING THE ANTENNA
The supplied telescoping antenna helps your scanner receive strong local
signals. To install the antenna, screw it clockwise into the hole on the
scanner's top.
The scanner's sensitivity depends on the antenna's length and various
environmental conditions. For the best reception of the trans missions you
want to hear, adjust the antenna's length.
Frequency Antenna Length
29-174 MHz Extend Fully
380-512 MHz Extend 2 segments
806-960 MHz Collapse fully (1 segment only)
Connecting an Optional Antenna
The ANT jack on the back of the scanner makes it easy to use the scanner
with a variety of antennas. Instead of the supplied antenna, you can
attach a different one, such as an external mobile antenna or outdoor base
station antenna. Your local RadioShack store sells a variety of antennas.
When deciding on an antenna and its location, consider the following:
The location of the antenna should be as high as possible.
The antenna and antenna cable should be as far as possible from sources
of electrical noise (appliances, other radios, and so on).
The antenna should be vertical for the best performance.
Always use 50-ohm coaxial cable, such as RG-58 or RG-8, to connect an
outdoor antenna. For lengths over 50 feet, use RG -8 low-loss dielectric
coaxial cable. If the coaxial cable's connector does not fit in the ANT
jack, you might also need a PL-259-to-BNC antenna plug adapter, such as
Cat. No. 278-120. Your local RadioShack store carries a wide variety of
coaxial antenna cable and connectors.
Follow the installation instructions supplied with the antenna, route the
antenna cable to the scanner, then connect it to the ANT BNC -type jack on
the back of the scanner.
Warning: Use extreme caution when installing or removing an outdoor
antenna. If the antenna starts to fall, let it go. It could
contact overhead power lines. If the antenna touches a power
line, contact with the antenn a, mast, cable, or guy wires can
cause electrocution and death. Call the power company to remove
the antenna. Do not attempt to do so yourself.
Caution: Do not run the cable over sharp edges or moving objects.
CONNECTING AN EARPHONE/HEADPHONES
For private listening, you can plug an earphone or mono headphones (such
as Cat. No. 33-175 or 20-210) into the headphones jack on the front of
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