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7
PREPARATION
CONNECTING AN
ANTENNA
Connecting the Telescoping
Antenna
The supplied telescoping antenna
helps your scanner receive strong lo-
cal signals. To install this antenna,
hold the antenna so it stands straight
up, then gently push the antenna’s
plug onto the
ANT
jack on the scan-
ner’s back panel.
The scanner’s sensitivity depends on
the antenna’s length and various envi-
ronmental conditions. Based on the
frequencies of the transmissions you
want to hear, adjust the antenna’s
length.
Connecting the Window-
Mount Antenna
You can install the supplied window-
mount antenna on the inside of your ve-
hicle’s windshield. Follow these steps to
install the window-mount antenna.
Caution:
Do not use the window-
mount antenna on a windshield that
has a plastic coating designed to pro-
tect passengers during an accident. If
you use the antenna on this type of
windshield, you might permanently
damage the windshield’s surface.
1. Select a location for the window-
mount antenna. Follow these
mounting guidelines when se-
lecting a location.
• The antenna’s clear wire re-
ceives signals. Mount it verti-
cally against the far right (pas-
senger) side of the windshield.
• Choose a location that does not
block the driver’s view of the
road.
• Some vehicles have Insta-
Clear
®
or ElectriClear
®
defog-
ging windshields, which have
metal coatings that interfere
with signals. General Motor’s
APV vans have a solar shield
that keeps the vehicle cooler
during the summer, which also
interferes with signals. If you
install a window-mount antenna
in a vehicle with any of these
features, the scanner probably
will not detect weak signals.
Frequenc
y
(MHz)
Antenna Len
g
th
29–108 Extend fully
108–174 Extend three
segments
174–512 Extend two
segments
ANT Jack
20-147.fm Page 7 Tuesday, August 3, 1999 3:23 PM