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CONTROLS
The system will interface with a jog controller which allows remote control of the system. Each axis position is
displayed as well as limit indications. The unit will also interface with a full function controller with features such as
automatic stow, GPS/flux-gate input and automatic satellite pointing and tracking.
CONSTRUCTION
Except for the drive components and bearings, the AZ/EL base plate, AZ/EL casting, feedboom and backing
structure and covers will be all aluminum. The fabrication of parts and assembly will be of world wide quality
standards.
SECTION 2- INSTALLATION AND SET-UP
2.1 GENERAL
The 1.2M VSAT positioner has been fully tested with the controller prior to shipment. All position feedback, limit
sensing, limit switches (except elevation stow) and motor speeds have been calibrated or set. The positioner
should be secured to the vehicle, connecting wave guide or boom mounted HPA cables, connecting coax,
connecting control cables to controller and connecting auxiliary control cable to wave guide switch if applicable.
The vehicle roof should be reinforced with a substructure capable of carrying the wind loads as specified on the
interface drawing to the vehicle frame. The structure should be stiff enough to prevent no more than a 0.5 dB of TX
gain loss in a 30mph gusting to 45mph wind. (850 IN/LB moment @ .25º)
A 3-inch diameter hole should be in the mounting surface. The mounting surface must be flat within .005 inch to
prevent binding the azimuth bearing after torquing the mounting bolts. No obstruction should be above the interface
surface in a 17-inch diameter envelope. Any other roof-mounted equipment such as air conditioners should be
more than 64 inches from center of interface bolt pattern. A hard flat surface is required for the feed bumpers as
shown on the interface drawing.
2.2 INSTALLATION TO VEHICLE
Remove the top of the shipping crate. Remove the narrow end at the azimuth
platform end of the crate. Connect controller cable to controller and raise the
antenna in elevation until the backing structure is vertical. (See attached figure.)
Adjust the forks on the forklift to just straddle the pallet . Place cardboard
pieces between the pallet and the forks.
Carefully raise positioner out of the crate watching control cables. Safety strap
positioner to forklift truck. Maneuver over to rear of truck. Raise positioner to
clear vehicle roof by about two feet. Lower control cables into center of mounting
hole and place riser tubes in place and install the screws (provided) into holes in
pallet. Use these as guides to position pallet directly over bolt pattern. Note:
Positioner must be installed with azimuth cable termination housing
aligned on centerline of vehicle.
Remove and replace set screws with mounting bolts provided. APPLY
LOCKTITE 242 OR EQUIVALENT TO BOLTS.
TORQUE ALL BOLTS TO 9-10 FT. LBS.
5
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