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SDM-300L3 Satellite Modem
Front Panel Operation
Intelsat V.35, FDC MOD V.35, ITU V.35, or Off.
Descrambler Type
Intelsat V.35
FDC MOD V.35
ITU V.35
OFF
IBS SYNC
EF MOD V.35
Turbo SYNC
FUNCTION SELECT: UTILITY: DEMODULATOR:
RX BPSK ORDERING
Receive BPSK bit ordering selection. Select STANDARD or NON-STANDARD.
FUNCTION SELECT: UTILITY: DEMODULATOR:
DEMOD SPECTRUM
Programmable vector rotation. Select Normal or Inverted for spectrum reversal of the I and
Q baseband channels.
Self-SYNC scrambling per IESS-308.
Compatible with Fairchild modems.
Closed Network Viterbi and Sequential with No Reed-Solomon.
Descrambling is disabled.
Intelsat per IESS-309.
Comtech EFD proprietary descrambling for Closed Network with
Reed-Solomon On.
Turbo SYNC - Descrambler
RX BPSK OREDERING
STANDARD
DEMOD SPECTRUM
NORMAL
4–97
MN/SDM300L3.IOM
Description
Revision 1
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