Table of Contents
2.9.1
Move to Longitude ............................................................................... 28
2.9.2 Move to Look Angles ........................................................................... 28
2.9.3 Steptrack ........................................................................................... 29
2.9.4 Star Tracking ...................................................................................... 29
2.9.5 Intelsat 11-element Track ..................................................................... 29
2.9.6 Orbital Element Track (Optional) ............................................................ 30
2.10 Tracking Functions ....................................................................... 31
2.10.1 Orbit Prediction Tracking ...................................................................... 31
3.0 THEORY ................................................................................................ 1
3.1 OPT ............................................................................................... 1
3.1.1 Orbit Prediction ..................................................................................... 1
3.1.2 Orbit Determination ............................................................................... 2
3.2 Orbit Scan ...................................................................................... 3
3.2.1 Orbit Scan Theory ................................................................................. 3
FIGURE 3-1 ORBIT SCAN THEORY ............................................. 4
3.2.2 Orbit Scan Operation.............................................................................. 4
4.0 INSTALLATION AND INITIAL SETUP OF SYSTEM ...................................... 1
4.1 Overview ....................................................................................... 1
4.2 Mechanical Installation ..................................................................... 1
4.2.1 Antenna-Mounted Components ............................................................... 1
4.2.2 Installing the Drive Cabinet ..................................................................... 1
4.2.3 Installing the 7200 ACU ......................................................................... 2
FIGURE 4-1 MOUNTING THE 7200 ACU ..................................... 2
4.3 System Cabling ............................................................................... 4
FIGURE 4-2 7200 ANTENNA CONTROL SYSTEM CABLING
DIAGRAM 4
4.3.1 Drive Cabinet Main Power Connection ...................................................... 5
FIGURE 4-3 DRIVE CABINET ASSEMBLY ..................................... 5
4.3.2 Connecting the Drive Motors to the Drive Cabinet ...................................... 6
4.3.3 Limit Switch Connections ....................................................................... 7
4.3.4 Installing the 7200 ACU Control Cable ..................................................... 8
FIGURE 4-4 7200 ANTENNA CONTROL UNIT REAR PANEL .......... 8
4.3.5 Resolver and Encoder Connections ......................................................... 11
4.3.6 Analog Input Connections ..................................................................... 16
4.3.7 Digital Inputs ...................................................................................... 17
4.3.8 Remote Communications Connections .................................................... 18
4.3.9 Remote Beacon Select and Summary Fault Connections ........................... 20
4.4 Initial Power-Up and System Setup .................................................. 21
4.4.1 Drive Cabinet Power-Up and Initialization ................................................ 22
FIGURE 4-5 GPD315 DIGITAL OPERATOR INDICATOR AND KEY
DESCRIPTION 23
FIGURE 4-6 DIGITAL OPERATOR INDICATOR AND KEY
DESCRIPTION 24
FIGURE 4-7 V1000 KEYS, DISPLAYS, AND LEDS ...................... 25
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