Radio Shack TRC-442 - Manual (Page 8)

8
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
vehicle’s engine compartment or
other areas that produce extreme
heat.
Note: To achieve your radio’s maxi-
mum range, adjust the antenna’s
Standing Wave Ratio (SWR) using an
SWR meter (not supplied).
Follow the instructions supplied with
the SWR meter and antenna to adjust
your antenna’s SWR to the lowest pos-
sible value. SWR values of 2.0:1 are
generally acceptable, with readings of
1.5:1 or lower being more desirable.
USING VEHICLE
BATTERY POWER
You can power this CB from your vehi-
cle’s battery or from standard AC pow-
er with an optional DC power supply.
For information on using AC power,
see “Using the CB as a Base Station”
on Page 9.
Follow these steps to power the CB
from your vehicle’s battery.
1. Connect the red wire, with the in-
line fuse, to a source of voltage
that turns on and off with the igni-
tion switch, such as a spare
accessory terminal in your vehi-
cle’s fuse box. This prevents the
battery from being drained if you
leave the CB on when you turn off
the ignition.
2. Connect the black wire to your
vehicle battery’s negative (–) ter-
minal or to a metal part of the
vehicle’s frame that is not insu-
lated from the frame by a plastic
part.
Red wire to switched
accessory terminal
Black wire to vehicle’s frame
or battery (–)
21-1586.fm Page 8 Thursday, August 5, 1999 9:50 AM