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2.1
GENERAL
The radio and ATU are factory-preset for proper tuning
operation and require no additional adjustment or
programming.
2.2
RECOMMENDED EQUIPMENT
2.2.1 TOOLS
- Nut driver 7/16" (VACO S-14, USA)
- Nut driver 5/16" (VACO S-10, USA)
- Flat blade screwdriver 7/16"
2.2.2 ACCESSORIES
For mobile installations:
FKN4314
High voltage cable kit
(supplied with the ATU)
FKN4589
RF coax cable
(supplied with the ATU)
For base station installations:
FKN4314
High voltage cable kit
(supplied with the ATU)
FKN4612
30 ft cable kit
FKN4613
100 ft cable kit
2.3
MOBILE INSTALLATION
INSTRUCTIONS
2.3.1 CABLE KITS
The ATU basic model is supplied with the FKN 4314
High Voltage Cable Kit and the FKN4589 RF coax
cable kit. A special RF Choke is incorporated in the RF
cable assembly to eliminate grounding problems.
2.3.2 INSTALLATION INSTRUCTIONS
The installation instructions included in
the label on the unit cover apply to base
station
installation.
instructions
in
installation.
2.3.2.1
Antenna and ATU Location
The antenna and ATU locations on a vehicle are the
most critical parts of a mobile installation, since they
have a great influence on the effective radiated power.
2.3.2.1.1 Antenna Location
The ATU tunes mobile whip antennas as specified in
the PERFORMANCE SPECIFICATIONS section.
However, 15 foot whip is recommended for best
efficiency.
For short range communications (ground waves), a
vertical (non-bent) antenna is preferred. For long range
communications (sky waves), a bent antenna is
preferred. The antenna may be bent and tied down to
the vehicle's body with a nylon cord.
The best antenna location is the vehicle's rooftop,
where the antenna is not obstructed by metal objects.
Roof center installation provides good symmetrical-
omnidirectional radiation patterns.
If roof top installation is impossible, a side wall
installation, with the antenna as far away from the side
wall and as high as possible, will suffice.
If the antenna's height above ground is limited, it is
preferred to install the antenna as high as possible and
to bend and strap it down to the required height (as
opposed to installing the antenna close to the ground,
such as in a bumper mounted installation).
CHAPTER 2
INSTALLATION
NOTE
Disregard
these
case
of
a
mobile
2-1
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