C.6.2 receive (rx) commands and queries – Mocomtech CDM-QX User Manual

Page 229

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CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Revision

7

Appendix C

MN/CDMQX.IOM

C–11

C.6.2 Receive (Rx) Commands and Queries

Priority System = RFT (Highest Priority), RMD, RCR, RRS, and RDR (Lowest Priority), as indicated by shading. Any changes to a higher
priority can override any of the parameters of lower priority.

Parameter

Type

Command

(Instruction

Code and

Qualifier)

Arguments for

Command or

Response to

Query

Description of Arguments

Response to

Command

Query

(Instruction

Code and

Qualifier)

Response to Query

RX FEC Type

RFT=

1 byte, value
of 0 through 6

Command or Query.

RX FEC Type in the form x, where:

0=Reserved
1=Viterbi
2=Viterbi + Reed-Solomon
3=Reserved
4=Reserved
5=TCM + Reed-Solomon
6=Turbo

Example: RFT=1 (Viterbi only)

RFT=
RFT?
RFT*
RFT#
RFT$
RFT^
RFT@

RFT?

RFT=x
(see Description of
Arguments)

RX Demod
Type

RMD=

1 byte, value
of 0 through 5

Command or Query.

RX Demodulator Type in the form x, where:

0=BPSK
1=QPSK
2=Reserved
3=8-PSK
4=16-QAM (Turbo or Viterbi + Reed-Solomon)
5=Reserved
Depending on FEC type, not all of these selections will be valid.
All other codes are invalid.

Example: RMD=1 (QPSK)

RMD=
RMD?
RMD*
RMD#
RMD$
RMD^
RMD@

RMD?

RMD=x
(see Description of
Arguments)

RX FEC
Code Rate

RCR=

1 byte, value
of 0 through 7

Command or Query.

Rx FEC Code Rate in the form x, where:

0=Rate 5/16 (Turbo Only)
1=Rate 21/44 (Turbo Only)
2=Rate 1/2
3=Rate 2/3 (8-Psk TCM or 8-QAM only)
4=Rate 3/4
5=Rate 7/8
6= Rate 17/18 (Turbo Only)
7= Reserved

Depending on FEC and demodulation type, not all of these
selections will be valid.

Example: RCR=4 (Rate 3/4)

RCR=
RCR?
RCR*
RCR#
RCR$
RCR^
RCR@

RCR?

RCR=x
(see Description of
Arguments)

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