15
3.
Connect the antenna cable plug to the standard receptacle on the unit. Most CB
antennas are terminated with a type PL-259 plug which mates with the receptacle
marked "ANT."
4.
Connect the red lead of DC power cord to +13.8VDC. In automobile installations,
+13.8VDC is usually obtained from the accessory contact in the fuse box. This
prevents the set being left on accidentally and also permits operating the unit
without the vehicle's engine running.
Before installing the CB radio, visually check the vehicle battery connections to
determine which battery terminal, positive or negative (positive is the larger of the
two) is grounded to the engine block (or chassis).
5
. Connect the black lead to the negative side of the automobile. This is usually the
chassis of the car. Any convenient location with good electrical contact (remove
paint) may be used.
6.
Mount the microphone bracket on right side of the transceiver, or near it using two
screws supplied. When mounting in an automobile, place the bracket under the
dash so the microphone is readily accessible.
CB Antennas
Since the maximum allowable power output of the transmitter is limited by the FCC,
the antenna is one important factor affecting transmission distance. Only a properly
matched antenna system will allow maximum power transfer from the 50-ohm
transmission line to the radiating element. In mobile installations (cars, trucks, boats,
etc.), an antenna system that is non-directional should be used.
A vertically polarized, quarter-wavelength whip antenna provides the most reliable
operation and greatest range. The shorter, loaded-type whip antennas are more
attractive, compact and adequate for applications where the maximum possible
distance is not required. Also, the loaded whips do not present the problems of height
imposed by a full quarter-wavelength whip.
Mobile whip antennas utilize the metal body of the vehicle as a ground plane. When
mounted at a corner of the vehicle they are slightly directional, in the direction of the
body of the vehicle. For all practical purposes, however, the radiation pattern is
nondirectional. The slight directional characteristic will be observed only at extreme
distances. A standard antenna connector (type SO-239) is provided on the transceiver
for easy connection to a standard PL 259 cable termination. Supernova loaded-type
antenna models ATW-500, AT-55, ATW-1000 and ATW-400 are highly recommended
for most installations. Consult your Supernova dealer for further details.
When installed in a boat, the transceiver will not operate at maximum efficiency
