Uniden UH8010NB Owner's Manual page 30

Congratulations on having selected the AT-870 477 MHz
Antenna. This antenna system will allow you to gain good
performance in all types of terrain, when properly used.
The kit contains all components necessary to install the
system, however it does not include a mounting bracket,
since there are many varieties of these. The type of
bracket will depend upon your application.
Following these instructions will allow your system to
perform to your requirements and meet your expectations.
This antenna is supplied with a stainless steel base and
spring assembly, a 6.5dB long antenna, 5 meters of
coaxial cable fitted with an FME female connector a UHF
plug/adaptor that suits all 477MHz transceivers.
INSTALLATION INSTRUCTIONS
1.0 SELECTION THE POINT OF INSTALLATION
The mounting position of the antenna on the vehicle will
depend on the type of vehicle you have and what method
of fitting you prefer. This antenna is a ground independent
antenna. This means it does not rely on the vehicle body
for its performance. Hence the antenna can be mounted
virtually anywhere on the vehicle and still perform well. It is
preferred, however, to mount the antenna as high as
practicable to achieve the best results. It is important to
remember that the antenna must be mounted at least
60cm from any vertical metal objects.
Suggested mounting positions in order of performance are:
1) Roof Rack, using a third party Roof-rack Mounting
Bracket.
2) Roof Gutter, using a third party H/Duty Gutter Bracket.
3) Truck Mirror, using a third party Mirror Bracket.
4) Bull Bar, using a third party Bull bar Bracket. This can
be a poor option for trucks, however, a good option for
4WD's.
5) Guard, using a third party "Z" Bracket
2.0 FITTING THE BASE TUBE & SPRING ASSEMBLY
The exploded view overleaf shows the assembly of the
base and spring.
2.1 Fit the antenna base and cable assembly to the spring
base. It is possible to use the antenna without the spring,
however, we highly recommended that the spring be used
in all types of installations. The spring should be firmly
tightened to the base tube. There are ventilation holes in
the base tube, refer to the diagram. These holes must be
clear at all times.
2.2 Remove the nut and washer from the antenna spring
assembly. Feed all of the cable lead through the hole in
the relevant mounting bracket that you will be using to
mount to your vehicle. Locate the base tube and spring
assembly into the bracket. Locate the washer over the
cable followed by the nut. Tightened the nut with a spanner
sufficiently to ensure a solid mounting. Excessive pressure
could cause damage – DO NOT over tighten.
NOTE: it is important to ensure that the cable is not
crushed, crimped or damaged in any way throughout
the installation.
2.4 Fit the bracket and antenna assembly to the vehicle
according to the selected mounting position.
2.5 Route the cable through the vehicle to the radio
ensuring the cable is not crimped crushed or damaged in
any way.
3.0 FITTING THE ADAPTOR
3.1 Locate the adaptor onto the FME connector end of the
cable lead and screw it home.
3.2 Tighten the nut on the connector with a spanner
sufficiently to ensure connections. DO NOT over tighten
3.3 Connect to the CB radio antenna socket.
INSTRUCTION FOR USE
The 6.5dB antenna will provide the best performance for
long-range flat open terrain. The radiation from this
antenna is best suited to this application..
NOTE: The antenna
system will work well in all
directions providing there
are no vertical metal
objects in the path of the
radiating signal i.e. the
antenna will work best if
you can see it from all
directions. Keep in mind
that the higher the
This antenna radiates in all
mounting positions, the
directions. Regardless of
better it works!
mounting position, unless
obstructed
WARNING
DO NOT attempt to Transmit (Use YOUR CB) until
the antenna has been mounted and the connector
has been properly terminated, otherwise the
transceiver could be damaged.
Printed in Vietnam
U60UT945EZZ(0)