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8 (config: tx) scr (scrambling), Config: tx) output power level mode: cnc-apc – Comtech EF Data CDM-570A User Manual

Page 125

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CDM-570A/570AL Satellite Modem with Optional Packet Processor

MN-CDM570A

Front Panel Operation

Revision 2

6–21

(CONFIG: Tx) Output Power Level Mode: AUPC

DemodUnlock

Action when Remote Demod

unlocks: Nom Max

To set the action that occurs if the remote demod is unlocked, use the

◄ ►

arrow keys

to select Nom or Max. Press ENTER.

Parameter

Description

Nom

(Nominal Power) The output level reverts to the nominal power level set under Manual.

Max

(Maximum Power) The output level changes to the maximum permitted.

(CONFIG: Tx) Output Power Level Mode: CnC-APC

See Sect. G.6.7 CnC-APC Setup in Appendix G. D

OUBLE

T

ALK

C

ARRIER

-

IN

-C

ARRIER

OPTION

6.3.2.3.8 (CONFIG: Tx) Scr (Scrambling)

IMPORTANT NOTE – All selections are always viewable. If a Hardware or FAST

option is either uninstalled or invalid, the cursor will skip past the unavailable

choice.

Tx Scrambling:Default-On

IESS-315-On Off (◄ ►,ENT)

Use the

◄ ►

arrow keys to select a parameter. Press ENTER.

Parameter

Description

Default-On

The appropriate scrambler type is automatically selected.

The default scrambler types are:

Uncoded – ITU V.35 (Intelsat variant)

Viterbi, no framing – ITU V.35 (Intelsat variant)

Viterbi, EDMAC frame – Comtech proprietary, frame synchronized

Viterbi +RS or TCM/RS – Per IESS-308, frame synchronized

TPC – Comtech proprietary, frame synchronized

8-QAM TPC – ITU V.35 (Intelsat variant)

IESS-315-On

This applies only when TPC is installed and is selected as the FEC type

Off

No scrambling

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