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Comtech EF Data SDM-300L3 User Manual

Page 164

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SDM-300L3 Satellite Modem

Revision 1

Front Panel Operation

MN/SDM300L3.IOM

4–96

FUNCTION SELECT: UTILITY: DEMODULATOR:

DEMODULATOR

TYPE (CONDITIONAL)

DEMODULATOR TYPE

INTELSAT OPEN

IMPORTANT

Conditional: RX FILTER TYPE is selectable only when Custom is
selected for modem type in the Utility: Modem Type menu.


Receive filter type select. Select Type INTELSAT OPEN, EFD CLOSED, CSC
CLOSED, or FDC CLOSED network receive filtering.

FUNCTION SELECT: UTILITY: DEMODULATOR:

DECODER

TYPE

(CONTIONAL)

DECODER TYPE

VITERBI

IMPORTANT

Conditional: Changes only when Modem Type (under Utility: Modem
Type) is in either EFD, Custom, or ASYNC mode
.


Decoder type selection. Select VITERBI, SEQUENTIAL, or TURBO decoder type. The
modem must have the proper hardware enabled.

FUNCTION SELECT: UTILITY: DEMODULATOR:

DESCRAMBLER

TYPE

DESCRAMBLER TYPE

INTELSAT V.35


This menu is status only and displays:

With Overhead and IBS Descrambler ON: IBS SYNC

With RS Descrambler On: EFD MOD V.35 or IBS SYNC

With Turbo Descrambler On: TURBO SYNC