SeaSpace TeraScan 1.5M Operation and Maintenance Manual

TeraScan 1.5m

Polar Satellite Tracking Antenna

Operations and Maintenance Manual

®

12 13000 Gregg St., Suite A, Poway, CA, 92064 USA

P/N

90333001 Rev G

TeraScan

®

1.5m Polar Satellite Tracking Antenna

Operations and Maintenance Manual

P/N 90333001 Rev. G

13000 Gregg St, Suite A, Poway, CA 92064 USA

Front Cover Acknowledgments

The image of a weather system off the coast of the Western US (left), acquired on October 4, 2003, is from

the NOAA-15 satellite’s afternoon pass.

The image at the top right shows the radome that encloses a 1.5m antenna located at the Universidad de la

Laguna, Tenerife in the Canary Islands, Spain.

The image of the Southern California fires (bottom right) is clearly visible from this NOAA-17 satellite pass,

acquired on October 27, 2003.

Credits

Content: Theodore Young

Drawings: Jason Vaughn, Jennifer Burt, and Dave Collins

Cover Design: Carolyn Brajkovich

Desktop Publishing: Carolyn Brajkovich, Bonnie Granzow, Jane Zeer

Representation and Warranty Disclaimer

For information about your TeraScan

®

warranty, please refer to the “Terms and Conditions” statement provided with your

purchase order.

SeaSpace Corporation makes no claim to represent nor warrant, whether implied or otherwise, any interpretation of images in this

publication for forecasting weather conditions or for predicting weather conditions. SeaSpace Corporation, nor SeaSpace personnel,

makes no warranty of any kind in regard to this material, including, but not limited to, the implied warranties of merchantability and

fitness for a particular purpose. The information in this publication is believed to be accurate and complete; however, it is provided

for reference only. SeaSpace Corporation, nor SeaSpace personnel, shall not be liable for errors contained herein or for incidental or

consequential damages in connection with the furnishing, performance, or use of this material. All specifications, as well as the

information contained in this publication, are subject to change without notice.

Copyright Information

All world rights reserved. No part of this publication may be stored in a retrieval system, transmitted, or reproduced in any way,

including, but not limited to, photocopy, photograph, magnetic, or other record, without the prior written permission of SeaSpace

Corporation.

This publication may contain or refer to information and products protected by copyrights or patents and does not convey any license

under the patent rights of SeaSpace Corporation nor the rights of others. SeaSpace Corporation, nor SeaSpace personnel, does not

assume any liability arising from any infringements of patents or other rights of third parties.

Any product names in this manual are trademarks or registered trademarks of their respective owners. The TeraScan

®

product name

is a registered trademark of SeaSpace Corporation.

TeraScan 1.5m Polar Satellite Tracking Antenna O&M Manual iii

How to Contact Customer Support at SeaSpace

If you experience problems with your TeraScan system or have questions concerning TeraScan, you can

contact Customer Support by telephone or fax or via the Internet at the following addresses.

SeaSpace Corporation Tel: (858) 746-1160

13000 Gregg St., Suite A Fax: (858) 746-1199

Poway, CA 92064, USA Internet: support@seaspace.com

Customer Support will best be able to help you if you provide them with information about your system.

To gather this information, run the TeraScan script tscaninfo to query the system for the following

information: TeraScan base packages (and version numbers) installed, and platform information such as

operating system, hostname and hostid, bus type, and time since the system was last rebooted.

You should also be prepared to provide Customer Support with any error message associated with the

problem you are experiencing and all standard output and any standard error associated with the technique

you are using.

For a problem concerning data acquisition, include verbatim output of the corresponding

$PASSDIR/schedlog.html file, $PASSDIR/logfiles/pgs/* files, $PASSDIR/logfiles/mtrack/* files and

$PASSDIR/logfiles/*antenna* files.

For additional information, run tscaninfo full to display the same information as tscaninfo plus a list of all

TeraScan packages installed, TeraScan licensing information, last update date for orbital elements (lastoes),

a list of passes on the pass disk (lspass), the acquisition schedule (listsched), TeraScan environment variable

settings, user environment (path, LD_LIBRARY_PATH), user information, disk information

(df -k), and network information.

The best thing to do is to redirect all output to a file and attach the file to an e-mail message.

iv SeaSpace Corporation

TeraScan 1.5m Polar Satellite Tracking Antenna O & M Manual v

Revision History

Revision Date Comments

A November 2003 First release. 6003L, three separate servo amplifiers, 40:1

azimuth train with azimuth pot

B October 2004 Added 6003AL, with three servos integrated inside PCU with

azimuth encoder incorporated inside azimuth motor

(ECR 04-0061).

C June 2005 Combined motor cable [12574542] and pedestal cable

[12574543] into one assembly [12574545].

Added "ac 1 program file_name" command to load flash

of PCU.

D April 2006 Added 2.65 PROM version for sea-going use of 1.5m antenna.

E April 2007 Corrected 1.5m 6003AL gain values.

Corrected sea-going settings.

Added PROM 2.67 and 2.68 for sea-going use.

Added nmea_monitor nav.timeout to ensure ship heading is

OK when a pass is tracked.

F March 2009 Added land-based antenna specifications

G April 2011 Added Acutime Gold GPS.

Added new 2.0m (79") radome.

Added 220-watt seagoing power supply (PWR-220-SEA).

vi SeaSpace Corporation

TeraScan 1.5m Polar Satellite Tracking Antenna O & M Manual vii

Table of Contents

List of Figures and Drawings....................................................................................................... xi

Drawings by Number .................................................................................................................xiii

Section 1: Introduction.......................................................................................1

1.1 Purpose of this Manual.................................................................................................... 1

1.2 What’s Covered in this Manual...................................................................................... 1

1.3 Related Manuals ............................................................................................................... 1

1.4 Conventions Used in This Manual................................................................................. 2

1.5 Technical Description....................................................................................................... 2

1.5.1 Outdoor Equipment............................................................................................... 2

1.5.2 Indoor Equipment.................................................................................................. 2

1.5.3 Telemetries Received ............................................................................................. 4

1.6 Physical Description......................................................................................................... 4

1.6.1 Environment............................................................................................................ 4

1.6.1.1 Outdoor Equipment Operating Limits ..................................................... 4

1.6.1.2 Wind Loads................................................................................................... 5

1.6.1.3 Shipboard Equipment Operating Limits .................................................. 5

1.6.1.4 Indoor Equipment Operating Limits ........................................................ 6

1.6.1.5 Outdoor Equipment Storage Limits.......................................................... 7

1.6.1.6 Indoor Equipment Storage Limits ............................................................. 7

1.6.2 Mechanical Description ........................................................................................ 7

1.6.2.1 Radome Dimensions and Weight .............................................................. 7

1.6.2.2 Operating Power Requirements ................................................................ 7

1.6.2.3 Tracking Positioner...................................................................................... 8

1.6.2.3.1 1.5m (Model 6003AL) Antenna Tracking Positioner .................... 8

1.6.2.3.2 1.5m (Model 6003L) Antenna Tracking Positioner ....................... 9

1.6.2.4 Dish Specifications ....................................................................................... 9

Section 2: Pictures of the Antenna.................................................................11

2.1 1.85m (73") Radome for 1.5m Antenna........................................................................ 12

2.2 L- and S-Band RHCP Feed, LNA, Downconverter Assembly [12218004] ............. 13

2.3 2.0m (79") Radome for 1.5m Antenna.......................................................................... 14

2.4 Power Supply [12217001] and GPS assembly [70170101]......................................... 15

2.5 Power Supply [PWR-220-SEA] and GPS Assembly [12120004] in 79" Radome.... 16

Section 3: Parts Identification and Configurations ....................................17

3.1 Antennas/Radomes ....................................................................................................... 18

3.1.1 1.5m Antenna/Radome....................................................................................... 18

3.2 Positioner Components ................................................................................................. 35

3.3 Antenna/Radome Kits................................................................................................... 67

3.4 Cable Assemblies............................................................................................................ 67

viii SeaSpace Corporation

Section 4: Antenna Setup, Startup, and Shutdown....................................77

4.1 Assembly: 1.5m Antenna............................................................................................... 77

4.1.1 Unpacking the Antenna ...................................................................................... 77

4.1.2 Tracking Antenna Setup...................................................................................... 77

4.1.2.1 Antenna Orientation.................................................................................. 77

4.1.2.2 Antenna Mounting..................................................................................... 77

4.1.2.2.1 73" Radome ....................................................................................... 77

4.1.2.2.2 79" Radome ....................................................................................... 77

4.1.2.3 Removal of the Antenna Shipping Retainers......................................... 78

4.1.2.4 Attaching Cables ........................................................................................ 78

4.1.2.5 Antenna/Pedestal Mechanical Checklist ............................................... 78

4.2 Settings ............................................................................................................................. 80

4.2.1 Antenna Settings................................................................................................... 80

4.3 Power-up Sequence........................................................................................................ 80

4.3.1 Turning on Power to the Antenna ..................................................................... 80

4.3.2 Antenna Motion on Startup................................................................................ 80

4.4 Power-down Sequence .................................................................................................. 80

4.4.1 Turning Off Power to the Antenna.................................................................... 80

4.5 Model 6003AL Antenna Configuration for Sea-Going Use...................................... 81

4.6 Model 6003AL Antenna Configuration for Land Use............................................... 82

Section 5: Antenna Operation and Periodic Maintenance........................83

5.1 Antenna Testing .............................................................................................................. 83

5.2 Antenna Monitoring...................................................................................................... 85

5.2.1 Trackeye.................................................................................................................85

5.3 Periodic Maintenance.................................................................................................... 86

5.4 Consumables .................................................................................................................. 86

5.5 Fuses ................................................................................................................................ 86

Section 6: How it Works ..................................................................................87

6.1 Satellite Tracking............................................................................................................ 87

6.2 Serial Communications with the Antenna.................................................................. 87

6.3 Sea-Going Antenna: How Changes in Shipheading Affect the

Antenna’s Azimuth Position ................................................................................ 88

Section 7: Fault Isolation .................................................................................89

7.1 Causes of Loss of Pass Data .......................................................................................... 90

7.1.1 Gradual or Temporary Loss of Data.................................................................. 90

7.1.2 Complete Loss of Data......................................................................................... 90

7.1.3 No Data Received After Setup of Antenna....................................................... 91

7.2 Antenna Subsystem Diagnostics.................................................................................. 91

7.2.1 Test Environment ................................................................................................. 91

7.2.2 Test Equipment..................................................................................................... 92

7.2.3 Parts Identification ............................................................................................... 92

7.2.4 Positioner-Related Faults .................................................................................... 92

7.2.4.1 Antenna Controller (PCU) ...................................................................... 93

7.2.4.2 Tracking Positioner ................................................................................... 94

7.2.4.3 Tracking Positioner—Elevation Torque ............................................... 97

TeraScan 1.5m Polar Satellite Tracking Antenna O & M Manual ix

7.2.4.4 Sea-Going Antenna with NMEA 0183 Input—

Azimuth Mispositioned ......................................................................... 97

7.2.5 RF-Related Faults ................................................................................................. 98

7.2.5.1 L/S-Band Downconverter ........................................................................ 98

7.2.6 Time-Related Faults ............................................................................................. 98

7.2.6.1 Check/reset clock....................................................................................... 98

7.2.6.2 Check GPS with sunclock and whereami............................................... 98

Section 8: Antenna Repair Procedures..........................................................99

8.1 Tools for the Repair of Antenna Components.......................................................... 100

8.2 Spare Parts ..................................................................................................................... 102

8.2.1 1.5m Spares Kit [SPR-15-BASIC (Rev A)/70416511] 6003AL,

Servo Amplifiers Inside PCU, with Sk-II GPS .................................................. 102

8.2.2 1.5m Spares Kit [SPR-15-BASIC (Rev B)/70416810] 6003AL,

Servo Amplifiers Inside PCU, with Acutime Gold GPS.................................. 103

8.2.3 1.5m Spares Kit [70416501] 6003L, Separate Servo Amplifiers,

40:1 Azimuth Train ............................................................................................... 104

8.2.4 Other Spare Parts Not in Kits .......................................................................... 105

8.3 Packaging of Parts for Return Shipment to SeaSpace ............................................. 106

8.4 Replacement Procedures ............................................................................................. 107

8.4.1 Pedestal Control Unit (PCU) [12574548] [12574549] ..................................... 107

8.4.2 Axis Drive Motors [12574501] [12574505] [12574506] [12574507] ............... 114

8.4.3 Servo Amplifier [12574003] 6003L Only ......................................................... 122

8.4.4 Level Platform (Level Cage) [12574644][12574544] ...................................... 124

8.4.5 Level Platform (Level Cage) Drive Motor [12574035]................................... 126

8.4.6 Antenna Power Supply [12217001] [12217002] [PWR-220-SEA] ................. 128

8.4.7 Azimuth Pot [12574510], 6003L Only .............................................................. 130

8.4.8 Interface Harness [70096105] [70096106] ........................................................ 132

8.4.9 L/S Feed/LNA/ Downconverter [12218xxx] ................................................ 136

8.4.10 DC Power Injector [12791001] ....................................................................... 138

8.4.11 Cross-Level Drive Belt [12574520] ................................................................ 140

8.4.12 Elevation Drive Belt [12573613]..................................................................... 142

8.4.13 Azimuth Pot Drive Belt [12574524] 6003L Only ......................................... 144

8.4.14 Level Platform Drive Belt [12573614] / [12574526] ..................................... 146

8.4.15 Azimuth Drive Belts [12574521] and [12574523]; [12574525]..................... 148

8.5 Calibration and Adjustment Procedures................................................................... 152

8.5.1 Balancing the Antenna....................................................................................... 152

8.5.2 Reading PCU "N" Coefficients.......................................................................... 153

8.5.3 Entering PCU "N" Coefficients......................................................................... 155

8.5.4 Calibration of the Level Platform..................................................................... 156

8.5.5 Azimuth Pot Calibration (6003L only) ............................................................ 157

8.5.6 Alignment of the Antenna Using pass reception, align and trackeye........ 158

8.6 GPS Receiver and Antenna [70170101] (Separate Receiver and Antenna, Sk-II) 159

8.6.1 Theory of Operation........................................................................................... 159

8.6.2 Stand-alone GPS Receiver [70320001] ............................................................. 160

8.6.3 Stand-alone GPS Antenna [70347001] ............................................................ 161

8.7 GPS Receiver and Antenna [12120004] (One Assembly, Acutime Gold) ............. 162

8.7.1 Theory of Operation........................................................................................... 162

8.7.2 Stand-alone GPS Receiver and Antenna [70320004] ..................................... 163

x SeaSpace Corporation

Section 9: Hardware Specifications.............................................................165

9.1 [Feed-15-L/12218002] Feed, LNA, Downconverter, L-Band.................................. 165

9.2 [12218004] Feed/LNA/Downconverter, L-Band, S-Band ...................................... 166

9.3 [12791001] Power Injector........................................................................................... 169

9.4 [12217001] Power Supply, Land-Based...................................................................... 171

9.5 [12217002/PWR-15-SEA] Power Supply, Sea-Going............................................... 172

9.6 [PWR-220-SEA] Power Supply, Sea-Going............................................................... 173

Section 10: Software .......................................................................................175

10.1 PROM Change Summary .......................................................................................... 175

10.2 Hardware Command Set........................................................................................... 175

10.2.1 Command Summary — PCU ......................................................................... 175

10.2.2 Control Code Details — PCU ......................................................................... 176

10.2.3 Monitor Code Details — PCU ........................................................................ 179

10.2.4 General Notes ................................................................................................... 181

10.3 Software Commands and Files................................................................................. 182

10.3.1 ac ......................................................................................................................... 182

10.3.2 align................................................................................................................... 183

10.3.3 antenna.............................................................................................................. 184

10.3.4 autoalign ........................................................................................................... 185

10.3.5 date .................................................................................................................... 186

10.3.6 nmea_monitor.................................................................................................. 187

10.3.7 shipheading....................................................................................................... 190

10.3.8 sunalign.............................................................................................................. 191

10.3.9 sunclock ............................................................................................................. 192

10.3.10 trackeye............................................................................................................ 193

10.3.11 whereami ........................................................................................................ 194

10.4 Software Configuration ............................................................................................. 196

10.4.1 file: $PASSDIR/antenna/antenna.calib........................................................ 196

10.5 Hardware Upgrade History...................................................................................... 201

10.5.1 PCU [12574548] 6003L ..................................................................................... 201

10.5.2 PCU [12574549] 6003AL .................................................................................. 201

10.5.3 Prom Required for Sea-Going Systems (6003AL)........................................ 201

10.5.4 Other Hardware ............................................................................................... 201

Section 11: Parts Lists .....................................................................................203

Glossary .............................................................................................................211

Index ...................................................................................................................213

TeraScan 1.5m Polar Satellite Tracking Antenna O & M Manual xi

List of Figures and Drawings

Figures

Figure 2-1: 1.85m (73") Radome for 1.5m Antenna ..........................................................................12

Figure 2-2: L- and S-Band RHCP Feed, LNA, Downconverter Assembly ................................... 13

Figure 2-3: 2.0m (79") Radome for 1.5m Antenna ............................................................................14

Figure 2-4: Power Supply [12217001] and GPS Assembly [70170101] ..........................................15

Figure 2-5: Power Supply [PWR-220-SEA] and GPS Assembly [12120004].................................16

Figure 4-1: Attaching the Cable to the 1.85m (73") Radome............................................................ 79

Figure 8-1B: Pedestal Control Unit (PCU) for 6003AL [12574549] ............................................... 108

Figure 8-1A: Pedestal Control Unit (PCU) for 6003L [12574548].................................................. 108

Figure 8-2: Cross-Level Drive Motor ................................................................................................ 117

Figure 8-3: Elevation Drive Motor and Elevation Servo, for 6003L only. .................................... 118

Figure 8-4: Azimuth Drive Motor [12574501], for 6003L. .............................................................. 119

Figure 8-5: Azimuth Drive Motor with Encoder [12574507], for 6003AL. ..................................120

Figure 8-6: Cross-Level Servo and Azimuth Servo, 6003L only ................................................... 123

Figure 8-7A: Level Cage (Front and Rear Views)............................................................................125

Figure 8-7B: Level Cage ...................................................................................................................... 125

Figure 8-8A: Level Cage Drive Motor...............................................................................................127

Figure 8-8B: Level Cage ...................................................................................................................... 127

Figure 8-9: Antenna Power Supply [12217001] ...............................................................................129

Figure 8-10: Antenna Power Supply [PWR-220-SEA]....................................................................129

Figure 8-11A: Azimuth Pot - Top View............................................................................................. 131

Figure 8-11B: Azimuth Pot - Side View ............................................................................................ 131

Figure 8-12: Azimuth Tongue with Cable Spool Cover .................................................................135

Figure 8-13: Interface Cable Coiled on the Spool ............................................................................135

Figure 8-14: Feed/LNA/Downconverter Assembly...................................................................... 137

Figure 8-15: Power Injector.................................................................................................................139

Figure 8-16A: Cross-Level Drive Belt - Rear View of Antenna Dish............................................ 141

Figure 8-16B: Cross-Level Drive Belt - Bottom View......................................................................141

Figure 8-17: Elevation Drive Belt....................................................................................................... 143

Figure 8-18: Azimuth Pot Drive Belt.................................................................................................145

Figure 8-19: Level Platform Drive Belt ............................................................................................. 147

Figure 8-20A: Azimuth Drive Belts (6003L) - Top View.................................................................149

Figure 8-20B: Azimuth Spool Drive Belt (6003L) - Side View .......................................................149

Figure 8-21: Azimuth Drive Belt (6003AL).......................................................................................151

Figure 8-22: Balancing the Antenna (View of Right Elevation Pan)............................................. 152

Figure 8-23: GPS Antenna and Receiver...........................................................................................160

Figure 8-24: Acutime Gold GPS Receiver and Antenna

.

................................................................163

Figure 9-1: Feed/LNA/Downconverter Assembly........................................................................167

Figure 9-2: Power Injector...................................................................................................................169

Figure 9-3: Power supply [PWR-220-SEA].......................................................................................173

xii SeaSpace Corporation

Drawings

1.5m Antenna and Related Hardware (70909001) ............................................................................... 3

1.5m Parts Identification for 6003AL (Servos Integrated with PCU) (70909047) .......................... 21

1.5m Antenna, 3-Axis in 2.0m (79") Radome (70905038) ..................................................................22

2.0m (79") Radome Assembly (70905536) ............................................................................................ 23

1.5m Antenna, 2.0m (79") Radome, bolt mount pattern (70905537) ................................................ 24

drawing 70905537 ................................................................................................................................... 24

Pedestal, 1.5m Antenna with Top Plate, for 2.0m (79") Radome (70905235) ................................. 25

1.5m Parts Identification, 6003L, 3 Separate Servo Amplifiers (70909004) .....................................27

1.5m Antenna, 3-Axis (70909002) .........................................................................................................29

1.85m (73") Radome Assembly (70909003) ..........................................................................................31

1.5m Antenna, 1.86m (72") Radome, Bolt Mounting Pattern and Foot Details (70909015) .......... 32

Pedestal, 1.5m with Base Ring (70905035) ........................................................................................... 33

1.5m Tracking Antenna, 3-Axis, Using Internal Receiver, Block Diagram (70909045) ................ 36

Tracking Antenna, 3-Axis, Using HR300, Block Diagram (70909030) ............................................ 37

1.5m Antenna Pedestal Assembly, 6003AL, Servos Integrated with PCU (70909048) ................. 39

1.5m Antenna Pedestal Assembly, 6003L, 3 Separate Servos (70909005) ....................................... 41

1.5m Cross-Level/Post Assembly (70909010) ....................................................................................43

1.5m Elevation Pan Assembly, Left Side (70909014) .........................................................................44

1.5m Elevation Pan Assembly, Right Side (70909012) .......................................................................

4

5

1.5m Base Spindle Assembly, 6003AL with Azimuth Motor (including Encoder) (70909049) ... 47

1.5m Base Spindle Assembly, 6003L with 40:1 Azimuth Train (70909013) .................................... 49

Azimuth Motor Assembly, Train, 40:1, Azimuth Pot (70909017) ................................................... 50

1.5m Antenna (6003AL) Pedestal Harness [12574542] (70909050) ..................................................53

1.5m Antenna Pedestal, Az Pot, Harness Assembly, 6003L only [12574541] (70909023) ............. 55

1.5m Pedestal Schematic, 6003AL, Az Encoder in Az Motor (70909051) ....................................... 57

1.5m Pedestal Schematic, Az Pot, 6003L, Separate Servo Amplifiers (70909022) ..........................59

1.5m Antenna (6003AL) Motor Harness (70909052) ..........................................................................61

Cable Assembly, Antenna Interface, 1.2m/1.5m with PCU, L- & S-Band,

110/220 VAC (70096105, Sheet 1 of 2 ) ......................................................................................... 63

Cable Assembly, Antenna Interface, 1.2m/1.5m with PCU, L- & S-Band,

110/220 VAC (70096105, Sheet 2 of 2 ) ......................................................................................... 65

1.5m Antenna with PCU Pinouts, RS422/RS232,

110/220 VAC (70909055) ................................................................................................................ 69

Cable Assembly, Bulkhead to RS422/Power Block, 110/220 VAC (70339000) .............................71

Cable Assembly, 1.2m/1.5m, Antenna to Bulkhead, 110/220 VAC (70350000) ........................... 73

Cable Assembly, 1.2m/1.5m to RS422, 110/220 VAC (70390000 ....................................................75

Pedestal Control Unit [12574549] PCB Schematic (70918053) ........................................................110

Pedestal Control Unit [12574548] PCB Schematic (70918021) ........................................................112

Feed/LNA/Downconverter Schematic (70909041) .........................................................................168

Power Injector Cabling (70909040) .....................................................................................................170

Power Supply, 24VDC Out, 2A, 85-265 VAC Input [12217001] (70909060) ................................171

Power Supply, 24VDC Out, 8A, 85-265 VAC Input [12

217

002] (70909061) ................................. 172

TeraScan 1.5m Polar Satellite Tracking Antenna O & M Manual xiii

Drawings by Number

70096105, Sheet 1 — Cable Assembly, Antenna Interface, 1.2m/1.5m with PCU,

L- & S-Band, 110/220 VAC .............................................................................................. 63

70096105, Sheet 2 — Cable Assembly, Antenna Interface, 1.2m/1.5m with PCU,

L- & S-Band, 110/220 VAC .............................................................................................. 65

70339000 — Cable Assembly, Bulkhead to RS422/Power Block, 110/220 VAC .......................... 71

70350000 — Cable Assembly, 1.2m/1.5m, Antenna to Bulkhead, 110/220 VAC .........................73

70390000 — Cable Assembly, 1.2m/1.5m to RS422, 110/220 VAC ................................................ 75

70905035 — Pedestal, 1.5m with Base Ring ........................................................................................ 33

70905038 — 1.5m Antenna, 3-Axis in 2.0m (79") Radome ................................................................22

70905235 — Pedestal, 1.5m Antenna with Top Plate, for 2.0m (79") Radome ............................... 25

70905536 — 2.0m (79") Radome Assembly ......................................................................................... 23

70905537 — 1.5m Antenna, 2.0m (79") Radome, bolt mount pattern ..............................................24

70909001 — 1.5m Antenna and Related Hardware ............................................................................. 3

70909002 — 1.5m Antenna, 3-Axis ....................................................................................................... 29

70909003 — 1.85m (73") Radome Assembly .......................................................................................31

70909004 — 1.5m Parts Identification, 6003L, 3 Separate Servo Amplifiers .................................. 27

70909005 — 1.5m Antenna Pedestal Assembly, 6003L, 3 Separate Servos (70909005) ................. 41

70909010 — 1.5m Cross-Level/Post Assembly .................................................................................. 43

70909012 — 1.5m Elevation Pan Assembly, Right Side .................................................................... 45

70909013 — 1.5m Base Spindle Assembly, 6003L with 40:1 Azimuth Train .................................. 49

70909014 — 1.5m Elevation Pan Assembly, Left Side ....................................................................... 44

70909015 — 1.5m Antenna, 1.86m (72") Radome, Bolt Mounting Pattern and Foot Details .......32

70909017 — Azimuth Motor Assembly, Train, 40:1, Azimuth Pot .................................................. 50

70909022 — 1.5m Pedestal Schematic, Az Pot, 6003L, Separate Servo Amplifiers ....................... 59

70909023 — 1.5m Antenna Pedestal, Az Pot, Harness Assembly, 6003L only [12574541] ......... 55

70909030 — Tracking Antenna, 3-Axis, Using HR300, Block Diagram .......................................... 37

70909040 — Power Injector Cabling ...................................................................................................170

70909041 — Feed/LNA/Downconverter Schematic ...................................................................... 168

70909045 — 1.5m Tracking Antenna, 3-Axis, Using Internal Receiver, Block Diagram .............. 36

70909047 — 1.5m Parts Identification for 6003AL (Servos Integrated with PCU) ........................ 21

70909048 — 1.5m Antenna Pedestal Assembly, 6003AL, Servos Integrated with PCU ............... 39

70909049 — 1.5m Base Spindle Assembly, 6003AL with Azimuth Motor (including Encoder) . 47

70909050 — 1.5m Antenna (6003AL) Pedestal Harness [12574542] ................................................53

70909051 — 1.5m Pedestal Schematic, 6003AL, Az Encoder in Az Motor ..................................... 57

70909052 — 1.5m Antenna (6003AL) Motor Harness ........................................................................61

70909055 — 1.5m Antenna with PCU Pinouts, RS422/RS232, 110/220 VAC ...............................69

70909060 — Power Supply, 24VDC Out, 2A, 85-265 VAC Input [12217001] ..............................171

70909061 — Power Supply, 24VDC Out, 8A, 85-265 VAC Input [12217002] ............................... 172

70918021 — Pedestal Control Unit [12574548] PCB Schematic ......................................................112

70918053 — Pedestal Control Unit [12574549] PCB Schematic ......................................................110

xiv SeaSpace Corporation

TeraScan 1.5m Polar Satellite Tracking Antenna O & M Manual 1

Section 1: Introduction

1.1 PURPOSE OF THIS MANUAL

This manual covers the operation, diagnostics, and repair of the TeraScan 1.5m Three-Axis Polar Satellite

Tracking Antenna and is intended for use by both the system operator and the repair technician.

1.2 WHAT’S COVERED IN THIS MANUAL

Section Contents

2 Pictures of the Antenna

3 Parts Identification and Configurations

4Startup

5 Operation and Periodic Maintenance

6How it Works

7 Fault Isolation

8 Repair Procedures

9 Hardware Specifications

10 Software

11 Parts List

12 Glossary

13 Index

1.3 RELATED MANUALS

Part Number Manual

90246001 HR300 Receiver, Bit Synchronizer, and GPS Interface Unit Operations and

Maintenance Manual

90125001 Site Preparation Procedures for TeraScan Systems with L- or S-Band Acquisition from

Polar Orbiting Satellites

2 SeaSpace Corporation

1.4 CONVENTIONS USED IN THIS MANUAL

This manual includes procedures that require the user to enter UNIX commands. These commands are shown

on a separate line in bold courier type at a command-line prompt (such as %). To enter a command, type in the

bolded words, then press the Return key (or Enter key). A <Return> placed at the end of a command line is

there to remind you to press the Return key (or Enter key).

Some commands include variable arguments shown in italic courier type that you must replace with a specific

value. For example, in the command, ac chain pos you must substitute chain with a telemetry chain

number.

1.5 TECHNICAL DESCRIPTION

The 1.5m three-axis tracking antenna provides real-time data acquisition from satellites in a polar orbit. The

antenna subsystem consists of the following components (as shown in drawing 70909001 on page 3).

1.5.1 Outdoor Equipment

(see drawing 70909004 on page 27)

a. 1.5m dish mounted on a positioner. This is the tracking antenna.

Two models of antenna are included in this manual:

Model 6003AL: Three servo amplifiers are integrated in the PCU enclosure.

Model 6003L: Three servo amplifiers are mounted on the antenna separate from the PCU.

b. The antenna is mounted inside a protective fiberglass radome. There are two types of radomes:

1) The radome is mounted on a base frame.

2) The radome mounts to the top of a round plate on a pedestal.

c. Mounted at the focal point of the dish is an RHCP feed receiving L-Band or L & S-Bands, one or two

low-noise amplifiers (LNAs), and one or two downconverters.

d. The positioner is controlled by a Pedestal Control Unit (PCU).

e. Power is supplied to the antenna via the antenna control cable from the computer.

f. A coaxial cable connects the antenna to the inside equipment. The IF signal is sent through the

antenna cable to the receiver. Commands from the computer are sent through the antenna cable to

the antenna PCU.

1.5.2 Indoor Equipment

a. For systems with an HR300 or TR100/TR101 receiver, the IF signal from the antenna is split off from

the antenna control cable.

b. The antenna tracking commands are sent to the PCU from the computer.

TeraScan 1.5m Polar Satellite Tracking Antenna O & M Manual 3

1.5m Antenna and Related Hardware (70909001)

drawing 70909001

70909001 — 1.5m Antenna and Related Hardware

4 SeaSpace Corporation

1.5.3 Telemetries Received

The Antenna System is capable of receiving the following telemetries (using a suitable receiver):

• HRPT telemetry from NOAA/TIROS series satellites (L-band antenna).

• CHRPT telemetry from FY-1C and FY-1D satellites (L-band antenna).

• SWHRPT telemetry from the Orbview-2 satellite (L-band antenna).

• RTD telemetry from DMSP series satellites (S-band antenna).

• WindSat telemetry from Coriolis satellite (S-band antenna)

• LRIT telemetry from geostationary satellites (L-band antenna).

1.6 PHYSICAL DESCRIPTION

1.6.1 Environment

1.6.1.1 Outdoor Equipment Operating Limits

Humidity 0-100% @ 40° C (104° F)

Rain Driving, up to 10 cm (4") per hour

Icing Up to 22 kg/m

2

(4.5 lb/ft

2

); degraded RF performance will occur

under icing conditions

Wind 68 m/s (150 mph) (242 km/hr) (131 knots)

Spray Resistant to water penetration sprayed from any direction

Temperature for Antenna:

1.5m (60") dish & 1.8m (72") radome -30° C (-22° F) to 55° C (131° F)

Power for Antenna Supplied by the computer.

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