Comtech EF Data KST-2000A Specifiche Pagina 76
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- Indice
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Valutato. / 5. Basato su recensioni clienti
Ku-Band Satellite Transceiver Revision 9
Operation MN/KST2000AB.IOM
3–28
3.11 Automatic Gain Control (AGC)
Note: AGC function only available with SSPAs of ≤ 25W.
The KST-2000A/B incorporates a closed-loop Automatic Gain Control (AGC) function
that maintains the system gain, as measured from the TX IF input to the Ku-Band output
of the Comtech EF Data supplied SSPA, at the user’s preset value despite the effects of
aging, operating temperature, or cabling loss. This is not a Automatic Level Control
(ALC) function, but a true AGC that maintains the gain of the system constant independ-
ent of input and output absolute levels. This is important to multicarrier operation, when
individual carriers turn On/Off and the level of the remaining carriers must remain unaf-
fected. This function is designed to operate with only Comtech EF Data SSPAs that in-
corporate a calibrated output detector. The transceiver can be set to operate in either the
AGC, non-AGC, or MANUAL gain mode.
- Ku-Band Satellite Transceive 1
- Installation and O 1
- KST-2000A/B 3
- Customer Service 4
- Table of Contents 5
- Figures 9
- Preface MN/KST2000AB.IOM 10
- Preface 11
- Related Documents 12
- Warranty Policy 13
- Chapter 1. INTRODUCTION 15
- 1.1 Description 16
- 1.1.3 Areas of Operation: 17
- 1.1.4 Features 18
- 1.1.4.2 Other Features 19
- Ku-Band & 20
- DC Power 20
- DC Power & 22
- 10 MHz Ref 22
- 1.1.7 Redundant System 23
- 1.2 Specifications 24
- to + 140°F) 26
- Notes: 27
- Chapter 2. INSTALLATION 29
- . (see Note) 30
- 2.3. Description of Options 31
- 2.4. Electrical Connections 32
- 2.4.1. Converter Unit 32
- 2.4.1.9 HPA Connector (J8) 38
- 2.4.2. Data SSPAs 41
- 2.4.3. LNA Connections 48
- 2.4.4. LNB Connections 48
- Chapter 3. OPERATION 49
- 3.1.1 Uplink Setup 51
- 3.1.2 Downlink Setup 52
- (2 places) 55
- PL/8085-2 55
- 3.4 Connector Descriptions 58
- 3.4.7 Other Connectors 63
- 3.5 Indicators Description 63
- Unit A Unit B 65
- 3.7 Reference Oscillator 70
- • Fault relays • ROM/RAM 72
- 3.11.1 Operation 77
- AND ISOLATION 81
- Chapter 4. FAULT INDICATION 81
- 4.2 Fault Isolation 82
- 4.3 Stored Faults 82
- Chapter 5. KEYPAD / DISPLAY 85
- 5.3 The Menu Structure 89
- 5.3.1 Configuration 90
- ] or [ X] to move the 91
- 5.3.2 Monitor 93
- 5.3.3 Faults 94
- 5.3.4 Utility 97
- 5.3.5 System 98
- or [ X] arrow buttons 99
- 5.3.6 Redundancy 100
- Operation MN/KST2000AB.IOM 102
- Appendix A. EQUIPMENT 103
- OUTLINE DRAWINGS 103
- TOLERANCE: +/- .02 (0.5) 108
- 5.67 (143.8) 110
- 5.12 (130.0) 110
- 2.55 (65) 110
- 1.58 (40) 110
- Type “N” 110
- Appendix B. TERMINAL MODE 111
- COMMANDS 111
- B.2 Message Structure 112
- B.2.1 Start Character 112
- B.2.2 Device Address 112
- B.2.3 Command/Response 113
- B.2.3 End Character 114
- B.3.3 Reset Commands 118
- <add/HS_’cr’ 119
- >add/HS_’cr’ 119
- B.3.5 Stored Faults 121
- B.3.6 Miscellaneous 124
- B.4.1 External Fault Mode 126
- Appendix C. SINGLE-THREAD 127
- EQUIPMENT MOUNTING 127
- C.1 Tools Required 128
- C.2.1 Spar Arm Mount 129
- Figure C-2 131
- C.2.2 Pole Mount 132
- Flat fitting plate 133
- Pipe block 133
- C.3 SSPA Installation 136
- C.4 LNA Installation 139
- C.5 Cable Installation 140
- Appendix D. REDUNDANT 141
- D.1 Tools Required 142
- D.2.1 Spar Arm Mount 143
- D.2.2 Pole Mount 146
- D.3 1:1 SSPA Installation 150
- D.4 1:1 LNA Installation 151
- D.5 Cable Installation 151
- Appendix E. FSK REMOTE 153
- CONTROL COMMANDS 153
- E.2 Basic Protocol 154
- E.2.1 Packet Structure 155
- E.2.2 Start Of Packet 155
- E.2.3 Address 155
- E.2.4 Instruction Code 155
- E.2.6 Message Arguments 158
- E.2.7 End Of Packet 158
- E.3 Commands and Query 158
- 2W SSPA – Item D=BV1 171
- Glossary 177
- Ω kilo-ohms 178
- Glossary MN/KST2000AB.IOM 180
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