Ref: PM-ENT120-002-11022
1. Overview –Technical Description
The ENTERPRISE120 is an azimuth over elevation positioning mount with motorised
polarisation control.
All axis feature simple and very robust 24V DC motor drives giving reliable, low backlash,
high and low speed motion controlled by either a jog controller or a fully auto-pointing
controller.
The optical layout is a dual offset Gregorian antenna which naturally produces cross
polarisation patterns which easily meet the 29-25 log theta requirement.
The bearings are sealed for life items that allow for highly accurate motion but require no
maintenance.
A manual over ride is provided for both azimuth and elevation axis to enable stowing the
antenna due to power or other failure.
The RF power amplifier(s) can be fitted either directly onto the feed of securely fitted to
the boom arm.
System weight (without the RF) is 80 kg.
2. Installation and Set-up
The ENTERPRISE120 is fully tested with the controller prior to shipment. All position
feedback, limit switches and motor speeds have been calibrated or set at the factory and
require no adjustment.
Remove the lid and end sections of the shipping crate, adjust forklift forks to roughly 1m
apart or as wide as they will safely go if this cannot be achieved.
Once suitable brackets are available (see attached drawing) these should be fitted to the
antenna roughly in the positions shown on the interface drawing with the slide nuts
provided.
Slings or ropes capable of withstanding the weight of the antenna (80kg) should then be
attached to the brackets, looped over the forks of the forklift and clamped onto the forks to
prevent them slipping off.
Raise the antenna to clear the vehicle roof by a minimum of 0.5m and manoeuvre to the
rear of the vehicle.
Whilst ensuring all cables are clear of mounting points, lower the positioner onto the
vehicle roof and line up all mounting holes.
