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20-313.fm Page 14 Friday, January 7, 2000 3:09 PM
1. Align the slots around
the antenna's connector
with the tabs on the
antenna jack.
2. Press the antenna down
over the jack and turn
the
antenna's
clockwise until it locks
into place.
The scanner's sensitivity de-
pends
on
the
antenna's
length and various environ-
mental conditions.
Connecting an
Outdoor Antenna
Instead of the supplied an-
tenna, you can connect an
outdoor base-station or mo-
bile antenna (not supplied)
to your scanner using a BNC
connector. Your local Ra-
dioShack store sells a vari-
ety of antennas. Choose the
one that best meets your
needs.
14
When deciding on a mobile
or base-station antenna and
its location, consider these
points:
• The antenna should be
as high as possible on
the vehicle or building.
• The antenna and its
cable should be as far
as
sources
noise, such as appli-
ances or other radios.
• The antenna should be
vertical for the best per-
base
formance.
Always use 50 Ohm coaxial
cable, such as RG-58 or
RG-8, to connect the base-
station or mobile antenna.
For lengths over 50 feet, use
RG-8 low-loss dielectric co-
axial cable. If the antenna
cable's connector does not
fit in the scanner's antenna
jack, you might also need an
antenna plug adapter. Your
local RadioShack store car-
ries a wide variety of coaxial
antenna cable and connec-
tors.
Once you choose an anten-
na, follow the mounting in-
structions supplied with the
antenna, after removing the
possible
from
of
electrical
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