Comtech EF Data SNM-1001L User Manual

Page 15

SNM-1001L Satellite Modem

Revision 1

Preface

MN/SNM1001L.IOM

C.3

Burst Mode Demodulator: Theory of Operation .................................................................... C–7

C.3.1

Burst Mode........................................................................................................................... C–7

C.4

Burst Mode Demodulator: Specifications................................................................................ C–8

C.4.1

Digital Data Rate.................................................................................................................. C–8

C.4.2

Demodulation and FEC Decoding Types ............................................................................ C–8

C.4.3

Descrambling Types ............................................................................................................ C–8

C.4.4

Differential Decoder ............................................................................................................ C–9

C.4.5

Demodulator Spectrum Rotation ......................................................................................... C–9

C.4.6

Receive Frequency (IF)........................................................................................................ C–9

C.4.7

Receive Input Power (Desired Carrier)................................................................................ C–9

C.4.8

Receive Input Power (Composite) ....................................................................................... C–9

C.4.9

IF Input Overload................................................................................................................. C–9

C.4.10

Demodulator IF Input Shape................................................................................................ C–9

C.4.11

Channel Spacing/Adjacent Carrier Performance ............................................................... C–10

C.4.12

Acquisition Time ............................................................................................................... C–10

C.4.13

Acquisition Probability ...................................................................................................... C–10

C.4.14

Receive IF Carrier Acquisition Range ............................................................................... C–10

C.4.15

Collision Recovery............................................................................................................. C–11

C.5

Burst Mode System - Specifications ....................................................................................... C–11

C.5.1

Loopback Modes................................................................................................................ C–11

C.5.2

Remote Control.................................................................................................................. C–12

C.5.3

Modem Remote Address.................................................................................................... C–12

C.5.4

Monitored Signals.............................................................................................................. C–12

C.5.5

Faults Monitored................................................................................................................ C–12

C.5.6

Stored Faults ...................................................................................................................... C–16

C.5.7

Stored Configurations ........................................................................................................ C–16

C.6

Burst Mode Specifications....................................................................................................... C–17

GLOSSARY

G–1

INDEX

i–1