Comtech EF Data SNM-1001L - Manual (Page 127)

SNM-1001L Satellite Modem Revision 1
Front Panel Operation MN/SNM1001L.IOM
4–63
FUNCTION SELECT: UTILITY: MODULATOR: SCRAMBLER TYPE
SCRAMBLER TYPE
INTELSAT V.35
This menu is status only and displays:
• With RS Scrambler On: EFD MOD V.35 or IBS SYNC
• With Turbo Scrambler On: TURBO SYNC
Intelsat V.35, FDC MOD V.35, ITU V.35, or Off.
Scrambler Type Description
Intelsat V.35 Self-SYNC scrambling per IESS-308.
FDC MOD V.35 Compatible with Fairchild modems.
ITU V.35 Closed Network Viterbi and Sequential with No Reed-Solomon.
OFF Scrambling is disabled.
EF MOD V.35 Comtech EFD proprietary scrambling for Closed Network with Reed-
Solomon On.
Turbo SYNC Turbo SYNC - scrambler
FUNCTION SELECT: UTILITY: MODULATOR: TX BPSK ORDERING
TX BPSK ORDERING
STANDARD
TX BPSK bit ordering selection. Select STANDARD or NON-STANDARD.
FUNCTION SELECT: UTILITY: MODULATOR: MOD SPECTRUM
MOD SPECTRUM
NORMAL
Programmable vector rotation allows the operator to select NORMAL or INVERT for spectrum
reversal of the I and Q baseband channels.