Operation
SDM-309B Satellite Modem
3–6
MN/U-SDM309B Rev. #
RXA
Receiver rate selection. Select one of four predefined receiver
decoder/data rate combinations or a variable rate selection.
On entry the current receiver rate is displayed with the flashing
cursor on the first character of the code rate on line one. The data
rate is displayed on line two. Use the arrow keys to select one of four
predefined rates. Filters that are not present may display as “N/A”
(not assigned) and can not be programmed. If your modem is
equipped with the variable rate option you can also select TXV and
enter the desired data rate.
To change the rate using the variable rate selection, press the
“ENTER” key when “RXV” is displayed. A flashing cursor will be
displayed on the first character of the coding type on line one. Use
the right and left arrow keys to move the flashing cursor and the up
and down arrow keys to increment or decrement the digit at the
flashing cursor. Press the “ENTER” key to execute the change.
RX_freq
Programs the demodulator receive frequency between 50 MHz and
90 MHz or 100 MHz and 180 MHz in 2.5 KHz Steps.
On entry the current receive frequency is displayed with the flashing
cursor on the first character. Use the right and left arrow keys to
move the flashing cursor and the up and down arrow keys to
increment or decrement the digit at the flashing cursor. Press the
“ENTER” key execute the change.
Note:
The receiver frequency is programmable within the specified
range (50 - 90 MHz or 100 - 180 MHz ) in 2.5 KHz Steps.
DifDecdr
Programs the differential decoder On or Off.
On entry the current status of the differential decoder is displayed
with the flashing cursor on the first character. Use the arrow keys to
select ON or OFF. Press the “ENTER” key to execute the change.
IFLoopBk
*Programs the modem for IF loopback operation. When the IF loop-
back is turned on the demodulator input is connected to the
modulator output through an attenuator and the demodulator is
programmed to the same frequency as the modulator. An attenuator
within the modem connects the IF out to the IF in. When IF loopback
is turned off the demodulator is turned to it’s previous frequency and
is reconnected to the IF input. See Figure 3-8 for a block diagram of
IF loopback operation.
On entry the current status of the IF loopback is displayed with a
flashing cursor on the first character. Use the arrow keys to select
ON or OFF. Press the “ENTER” key to execute the change.
RFLoopBk
*Programs the modem for RF loopback operation. When RF
loopback is turned on the demodulator is programmed to the same
frequency as the modulator. When RF loopback is turned off the
demodulator is tuned to it’s previous frequency. See Figure 3-9 for a
block diagram of RF loopback operation.
On entry the current status of the RF Loopback is displayed with the
flashing cursor on the first character. Use the arrow keys to select
ON or OFF. Press the “ENTER” key to execute the change.
Содержание SDM-309B
Страница 7: ...Preface SDM 309B Satellite Modem iv Rev 0 This page is intentionally blank ...
Страница 13: ...Table of Contents SDM 309B Satellite Modem x Rev 0 This page is intentionally blank ...
Страница 16: ...SDM 309B Satellite Modem Introduction MN U SDM309B Rev 1 1 3 Figure 1 1 SDM 309B Modem ...
Страница 18: ...SDM 309B Satellite Modem Introduction MN U SDM309B Rev 1 1 5 Figure 1 3 Modular Construction ...
Страница 19: ...Introduction SDM 309B Satellite Modem 1 1 6 MN U SDM309B Rev Figure 1 4 SDM 309B Block Diagram ...
Страница 23: ...Introduction SDM 309B Satellite Modem 1 1 10 MN U SDM309B Rev Figure 1 5 Typical Bit Error Rate Performance ...
Страница 25: ...Introduction SDM 309B Satellite Modem 1 1 12 MN U SDM309B Rev ...
Страница 28: ...SDM 309B Satellite Modem Installation MN U SDM309B Rev 2 2 3 Figure 2 1 Rear Panel View ...
Страница 34: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 3 Figure 3 1 Front Panel View ...
Страница 47: ...Operation SDM 309B Satellite Modem 3 16 MN U SDM309B Rev Figure 3 2 Menu Tree ...
Страница 48: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 17 Figure 3 3 Menu Tree ...
Страница 49: ...Operation SDM 309B Satellite Modem 3 18 MN U SDM309B Rev Figure 3 4 Menu Tree ...
Страница 50: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 19 Figure 3 5 Menu Tree ...
Страница 51: ...Operation SDM 309B Satellite Modem 3 20 MN U SDM309B Rev Figure 3 6 Menu Tree ...
Страница 52: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 21 Figure 3 7 Menu Tree ...
Страница 53: ...Operation SDM 309B Satellite Modem 3 22 MN U SDM309B Rev Figure 3 8 IF Loopback ...
Страница 54: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 23 Figure 3 9 RF Loopback ...
Страница 55: ...Operation SDM 309B Satellite Modem 3 24 MN U SDM309B Rev Figure 3 10 Interface Loopback ...
Страница 56: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 25 Figure 3 11 Baseband Loopback ...
Страница 71: ...Operation SDM 309B Satellite Modem 3 40 MN U SDM309B Rev Figure 3 12 Menu Tree ...
Страница 72: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 41 Figure 3 13 Menu Tree ...
Страница 73: ...Operation SDM 309B Satellite Modem 3 42 MN U SDM309B Rev Figure 3 14 Menu Tree ...
Страница 74: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 43 Figure 3 15 Menu Tree ...
Страница 75: ...Operation SDM 309B Satellite Modem 3 44 MN U SDM309B Rev Figure 3 16 Menu Tree ...
Страница 76: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 45 Figure 3 17 Menu Tree ...
Страница 77: ...Operation SDM 309B Satellite Modem 3 46 MN U SDM309B Rev ...
Страница 80: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 3 Figure 4 1 Monitor Control Card ...
Страница 86: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 9 Figure 4 2 IBS Interface Module ...
Страница 87: ...M C and Interfaces SDM 309B Satellite Modem 4 4 10 MN U SDM309B Rev Figure 4 3 IBS Interface Block Diagram ...
Страница 88: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 11 Figure 4 4 IBS Fault Tree ...
Страница 89: ...M C and Interfaces SDM 309B Satellite Modem 4 4 12 MN U SDM309B Rev Figure 4 5 Jumper Table ...
Страница 95: ...M C and Interfaces SDM 309B Satellite Modem 4 4 18 MN U SDM309B Rev Figure 4 6 IBS Break Out Panel ...
Страница 105: ...M C and Interfaces SDM 309B Satellite Modem 4 4 28 MN U SDM309B Rev Figure 4 8 Drop and Insert Channel Unit ...
Страница 106: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 29 Figure 4 9 Drop and Insert Block Diagram ...
Страница 107: ...M C and Interfaces SDM 309B Satellite Modem 4 4 30 MN U SDM309B Rev Figure 4 10 Drop Insert Fault Tree ...
Страница 108: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 31 Figure 4 11 Drop Insert Jumper Table ...
Страница 112: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 35 Figure 4 12 Drop and Insert Break Out Panel ...
Страница 118: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 41 Figure 4 13 Rear Panel Switch Diagram ...
Страница 120: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 43 Figure 4 14 Drop and Insert Schematic Diagram ...
Страница 127: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 3 Figure 5 1 Modulator Card ...
Страница 128: ...Theory of Operation SDM 309B Satellite Modem 5 5 4 MN U SDM309B Rev Figure 5 2 Modulator Block Diagram ...
Страница 129: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 5 Figure 5 3 Modulator Output Spectral Occupancy ...
Страница 133: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 9 Figure 5 4 Viterbi Decoder AS 0701 ...
Страница 134: ...Theory of Operation SDM 309B Satellite Modem 5 5 10 MN U SDM309B Rev Figure 5 5 Viterbi Decoder AS 0949 ...
Страница 135: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 11 Figure 5 6 Viterbi Decoder AS 2133 ...
Страница 136: ...Theory of Operation SDM 309B Satellite Modem 5 5 12 MN U SDM309B Rev Figure 5 7 Viterbi Decoder Block Diagram ...
Страница 137: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 13 Figure 5 8 Typical Decoder BER Performance ...
Страница 141: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 17 Figure 5 9 Demodulator Card ...
Страница 142: ...Theory of Operation SDM 309B Satellite Modem 5 5 18 MN U SDM309B Rev Figure 5 10 Demodulator Block Diagram ...
Страница 148: ...SDM 309B Satellite Modem Maintenance MN U SDM309B Rev 6 6 3 Figure 6 1 Typical Output Spectrum ...
Страница 149: ...Maintenance SDM 309B Satellite Modem 6 6 4 MN U SDM309B Rev Figure 6 2 Output Spectrum With Noise ...
Страница 151: ...Maintenance SDM 309B Satellite Modem 6 6 6 MN U SDM309B Rev Figure 6 3 Typical Eye Patterns ...
Страница 152: ...SDM 309B Satellite Modem Maintenance MN U SDM309B Rev 6 6 7 Figure 6 4 Typical Eye Constellations ...
Страница 166: ...SDM 309B Satellite Modem Maintenance MN U SDM309B Rev 6 6 21 Figure 6 10 Rear View Without Cover ...
Страница 171: ...SDM 309B Satellite Modem Data Rates and Filters MN U SDM309B Rev A 3 Figure A 1 Modulator Filter Card Change ...
Страница 172: ...Data Rates and Filters SDM 309B Satellite Modem A 4 MN U SDM309B Rev Figure A 2 Demodulator Filter Card Change ...
Страница 173: ...SDM 309B Satellite Modem Data Rates and Filters MN U SDM309B Rev A 5 Figure A 3 Fixed Rate Modulator Filter ...
Страница 174: ...Data Rates and Filters SDM 309B Satellite Modem A 6 MN U SDM309B Rev Figure A 4 Fixed Rate Demodulator Filter ...
Страница 175: ...SDM 309B Satellite Modem Data Rates and Filters MN U SDM309B Rev A 7 Figure A 5 Variable Rate Modulator Filter ...
Страница 176: ...Data Rates and Filters SDM 309B Satellite Modem A 8 MN U SDM309B Rev Figure A 6 Variable Rate Demodulator Filter ...
Страница 177: ...SDM 309B Satellite Modem Data Rates and Filters MN U SDM309B Rev A 9 ...
Страница 207: ...Remote Control SDM 309B Satellite Modem B B 30 MN U SDM309B Rev Where x xx is the software version number ...
Страница 211: ...External Channel Unit SDM 309B Satellite Modem C C 4 MN U SDM309B Rev Figure C 2 System Interconnect Diagram ...
Страница 212: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 5 Figure C 3 Adapter Cable AS 0749 V 35 ...
Страница 213: ...External Channel Unit SDM 309B Satellite Modem C C 6 MN U SDM309B Rev Figure C 4 Adapter Cable AS 0750 V 35 ...
Страница 214: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 7 Figure C 5 Adapter Cable AS 0751 RS449 ...
Страница 215: ...External Channel Unit SDM 309B Satellite Modem C C 8 MN U SDM309B Rev Figure C 6 Adapter Cable AS 0752 15 Pin D ...
Страница 216: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 9 Figure C 7 Adapter Cable AS 0741 RS449 ...
Страница 217: ...External Channel Unit SDM 309B Satellite Modem C C 10 MN U SDM309B Rev Figure C 8 Adapter Cable AS 0753 15 Pin D ...
Страница 220: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 13 Figure C 9 RS422 MIL STD 188 114 Interface ...
Страница 221: ...External Channel Unit SDM 309B Satellite Modem C C 14 MN U SDM309B Rev Figure C 10 RS422 MIL STD 188 114 Block Diagram ...
Страница 226: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 19 Figure C 11 V 35 Interface Card ...
Страница 227: ...External Channel Unit SDM 309B Satellite Modem C C 20 MN U SDM309B Rev Figure C 12 V 35 Interface Block Diagram ...
Страница 235: ...External Channel Unit SDM 309B Satellite Modem C C 28 MN U SDM309B Rev Figure C 13 Menu Tree ...
Страница 236: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 29 Figure C 14 Menu Tree ...
Страница 237: ...External Channel Unit SDM 309B Satellite Modem C C 30 MN U SDM309B Rev Figure C 15 Menu Tree ...
Страница 238: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 31 ...
