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User Interfaces
DMD50 Universal Satellite Modem
4-40
TM118 – Rev. 1.1
LOOPBACK
{IF, TERR TX/RX, BASEBAND TX/RX, NONE,
TERR RX, BASEBAND RX, TERR TX, BASEBAND TX,
IFEC TX}
Terrestrial Loopback is performed at the Terrestrial
Interface
IF:
IF loopback loops the IF output of the Modulator to
the IF input of the Demodulator. If using 8PSK or
16QAM Modulation, the output power must be above
-15 dB.
TERR TX/RX:
Enables both. Baseband loopback is
performed at interface between the Baseband Processor
Card and the Modem Card. This ensures
Framer/Deframer integrity.
BASEBAND TX/RX:
Enables both Baseband Tx and
Baseband Rx.
NONE
:
No loopback performed.
TERR RX:
(Distant Loop) Sends received satellite data
to the Modulator for transmission to the distant end.
BASEBAND RX:
Sends Rx data from the Modem Card
to the Tx data input to the Modem Card.
TERR TX:
Sends Tx Terrestrial Data to Rx data out.
BASEBAND TX:
Sends Tx data to the receive input to
the BB Card.
CARRIER TYPE
{NORMAL, CW, DUAL, OFFSET, POS FIR, NEG FIR}
Allows the user to set the type of carrier.
NORMAL:
Causes the Modulator to output normal
modulation.
CW:
Causes the Modulator to output a pure carrier.
DUAL:
Causes a double sideband output.
OFFSET:
Causes a single sideband output.
POS FIR:
For manufacturer’s use only.
NEG FIR:
For manufacturer’s use only.
Содержание DMD50
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Страница 16: ...DMD50 Universal Satellite Modem Table of Contents TM118 Rev 1 1 xv...
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Страница 20: ...DMD50 Universal Satellite Modem Introduction TM118 Rev 1 1 1 3...
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Страница 27: ...Installation DMD50 Universal Satellite Modem 2 6 TM118 Rev 1 1...
Страница 53: ...Theory of Operation DMD50 Universal Satellite Modem 3 26 TM118 Rev 1 1...
Страница 97: ...User Interfaces DMD50 Universal Satellite Modem 4 44 TM118 Rev 1 1...
Страница 122: ...DMD50 Universal Satellite Modem Rear Panel Interfaces TM118 Rev 1 1 5 25...
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Страница 132: ...DMD50 Universal Satellite Modem Maintenance and Troubleshooting TM118 Rev 1 1 6 9...
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Страница 158: ...DMD50 Universal Satellite Modem Technical Specifications TM118 Rev 1 1 7 25...
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Страница 162: ...DMD50 Universal Satellite Modem Appendix A TM118 Rev 1 1 A 3...
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Страница 170: ...DMD50 Universal Satellite Modem Appendix B TM118 Rev 1 1 B 7...
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Страница 174: ...DMD50 Universal Satellite Modem Appendix C TM118 Rev 1 1 C 3...
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Страница 184: ...DMD50 Universal Satellite Modem Appendix D TM118 Rev 1 1 D 9...
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Страница 192: ...DMD50 Universal Satellite Modem Appendix E TM118 Rev 1 1 E 7...
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Страница 200: ...DMD50 Universal Satellite Modem Appendix F TM118 Rev 1 1 F 7...
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Страница 205: ...Appendix G DMD50 Universal Satellite Modem G 4 TM118 Rev 1 1...
Страница 209: ...Appendix H DMD50 Universal Satellite Modem H 4 TM118 Rev 1 1 Figure H 5 Insert Only with Internal Frame Source...
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Страница 231: ...Appendix I DMD50 Universal Satellite Modem I 6 TM118 Rev 1 1...