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To disconnect the microphone from the
CB, unscrew the locking nut then pull
out the plug.
Caution:
Never pull on the micro-
phone’s cable.
CONNECTING AN
ANTENNA
There are many different types of CB
antennas for mobile CBs. Each antenna
type has its own benefits, so choose the
one that best meets your needs. Your
local RadioShack store sells a wide vari-
ety of antennas.
Note:
If you are using this CB as a base
station, see “Using the CB as a Base
Station” on Page 7.
When you choose an antenna, keep in
mind that for the best performance you
should mount the antenna:
• as high as possible on the vehicle
• as far as possible from sources of
electrical noise
• vertically
Once you choose an antenna, follow its
mounting instructions. Then route the
cable to the CB and connect the cable to
the
ANT.
jack on the back of the CB.
Cautions:
• Avoid routing the cable next to sharp
edges or moving parts, which might
damage the cable.
• Do not run the cable next to power
cables or other radio antenna ca-
bles.
• Do not run the cable through the en-
gine compartment or other areas
that produce extreme heat.
For maximum range, adjust the anten-
na’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 possible
value. SWR values of 2.0:1 are general-
ly acceptable, with readings of 1.5:1 or
lower being more desirable.
21-1709.fm Page 6 Monday, January 29, 2001 10:29 AM