Radio Shack TRC-446 - Manual (Page 7)

7
INSTALLING AN
ANTENNA
Caution: To prevent damage to your
CB, do not attempt to transmit without
an antenna attached.
Selecting an Antenna
When you decide on an antenna and its
location, consider these points:
• The antenna should be positioned
as high as possible.
• The antenna and the antenna cable
should be routed as far as possible
from any source of electrical noise
such as ignition systems, electric
gauges, and motors.
Your local RadioShack store sells a vari-
ety of CB antennas for both mobile and
base-station use. Choose the one that
best meets your needs.
Connecting an Antenna
Follow the mounting instructions sup-
plied with the antenna you choose.
Route the antenna cable to the CB, then
thread the PL-259 antenna cable plug
into ANTENNA on the back of the CB.
Cautions:
• Do not run the cable over sharp
edges or moving parts that might
damage it.
• Do not run the cable next to power
cables or other CB antenna cables.
• Do not run the cable through a vehi-
cle's engine compartment or other
areas that produce extreme heat.
USING VEHICLE
BATTERY POWER
You can power this CB from your vehi-
cle's battery or from standard AC power
with an optional DC power supply. For in-
formation on using AC power, see “Using
the CB as a Base Station” on Page 8.
Follow these steps to power the CB from
your vehicle's battery.
1. Plug the single-connector end of the
power cord into POWER 13.8V DC
on the CB's back panel.
2. Connect the black wire to your vehi-
cle’s negative (–) battery terminal or
to a metal part of the vehicle's frame
that is not insulated from the frame
by a plastic part.
3. Connect the red wire, with its in-line
fuse, to a source of voltage that
turns on and off with the ignition
switch, such as a spare accessory
terminal in your vehicle's fuse box.
This assures you that power to the
CB is turned off when you turn off
the ignition.
4. Connect the orange wire, with its in-
line fuse, to a source of voltage that
supplies constant positive (+) power
(regardless of the ignition switches
position) or directly to your vehicle's
positive (+) battery terminal. This
enables the radio to “remember” the
last channel you tuned to when you
turn the radio back on.
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