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Preparation
6
When deciding on an outdoor antenna and its location,
consider these points:
• The antenna should be located 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.
To connect an optional base-station or mobile antenna, first
remove the supplied antenna from the scanner. Always use
50 Ohm coaxial cable, such as RG-58 or RG-8, to connect
an outdoor antenna. For distances longer than 50 feet, use
RG-8 low-loss dielectric coaxial cable. If the antenna cable's
connector does not have a BNC connector, you will also
need a BNC adapter (not supplied, available at your local
RadioShack store). Your local RadioShack store carries a
wide variety of coaxial cable and connectors.
Once you choose an antenna, follow the mounting
instructions supplied with the antenna. Then route the
antenna's cable to the scanner and connect the cable to the
ANT connector.
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For private listening, you can plug a
1
/
8
-inch (3.5-mm) mini-
plug earphone or headphones (not supplied), available at
your local RadioShack store, into
/PC
on the back of the
scanner. This automatically disconnects the internal
speaker.
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To protect your hearing, follow these guidelines when you
use an earphone or headphones.
• Set the volume to the lowest setting before you begin
listening. After you begin listening, adjust the volume to
a comfortable level.
• Do not listen at extremely high volume levels. Extended
high-volume listening can lead to permanent hearing
loss.
• Once you set the volume, do not increase it. Over time,
your ears adapt to the volume level, so a volume level
that does not initially cause discomfort might still
damage your hearing.
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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,
touching the antenna, 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.
.
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.
Do not run the cable over sharp
edges or moving parts that might
damage it.
20-424.fm Page 6 Monday, September 9, 2002 9:44 AM