Satellite TV System User Manual

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INTRAC 204 Antenna Control Unit

For Antennas up to: 9.6 meters in C-Band or 4.5 meters in Ku-Band

Features

 Low cost, high performance and high reliability

for antennas up to 9.6 metres in diameter C-

Band and 4.5 metres in diameter Ku-Band

 INTRAC™ orbit modelling algorithm offers the

highest tracking Integrity

 Accurately tracks satellites with orbital

inclinations up to and beyond 10°

 Built in 36VDC, 8A drive unit to directly drive

DC actuators with sequential Dual Axis drive

 Average tracking signal degradation less than

0.1dB

 Accepts high resolution resolver transducers

down to 20 arc seconds (16 bits)

 Compatible with INTELSAT and EUTELSAT

SCPC tracking specifications

 Tolerates signal fluctuations that defeat step

track and memory track controllers

 Resilient to tracking signal loss, maintaining

integrity for up to 72 hours

 Non-volatile memory ensures tracking is

resumed after power failure

 Full M&C control via RS232 / RS422 interface

 Can Incorporate IBRL-7 integral L-band

beacon receiver

 Option to drive a third polarization axis

Overview

The INTRAC™ 204 Antenna Control Unit

enables satellite earth station antennas to

accurately track geosynchronous satellites with

orbital inclinations up to and beyond 10°. The

unit offers superior tracking integrity with any C-

Band antenna up to 9.6 meters and any Ku-

Band antenna up to 4.5 meters. The control unit

uses the INTRAC (INtelligent TRacking Antenna

Control) algorithm which has been developed

and refined over a 20 year period. It offers

exceptional immunity to propagation

disturbances and fades, maintaining reliable

pointing accuracy even at low angles of

elevation in regions of high scintillation.

The INTRAC 205 is compatible with INTELSAT

and EUTELSAT SCPC tracking specifications.

It is able to tolerate signal fluctuations that

defeat step track and memory track controllers

and is resilient to loss of tracking signal, the unit

will maintain tracking integrity for blackout

periods up to 72 hours. The non-volatile

memory ensures that accurate tracking is

resumed after power failure.

The unit incorporates 36VDC motor drive

circuits providing a single box solution that is

simple to install, reducing set up costs. It

features full remote monitoring and control via

an RS232 / RS423 serial interface. Average

tracking signal degradation is less than 0.2dB.

The INTRAC 204 features a two-line LCD

display and can be supplied with an integral L-

Band beacon receiver.

Summary of content (2 pages)

PAGE 1
INTRAC 204 Antenna Control Unit For Antennas up to: 9.6 meters in C-Band or 4.5 meters in Ku-Band Features              Overview Low cost, high performance and high reliability for antennas up to 9.6 metres in diameter CBand and 4.
PAGE 2
INTRAC 204 Antenna Control Unit SPECIFICATIONS SPECIFICATIONS Operational modes Standby Auto (INTRAC) Manual (Jog) Go To (Position Designate) Search Remote Control Tracking Accuracy Typically better than 0.1dB RMS signal degradation after tracking for 24 hours (with tracking signal), for orbit inclinations up to 10° Prediction Accuracy Typically better than 0.