Comtech EF Data CDM-570 User Manual

Page 366

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CDM-570/570L Satellite Modem with Optional IP Module

Revision 12

Appendix D

MN/CDM570L.IOM

D–16

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 Buffer Size

RBS=

1 byte,
value of 0 thru 9

Command or Query.
Rx buffer size, where:
0 = Buffer disabled (Clock mode = Rx satellite)
1 = +/- 1024 bits
2 = +/- 2048 bits
3 = +/- 4096 bits
4 = +/- 8192 bits
5 = +/- 16384 bits
6 = +/- 32768 bits
7 = +/- 128 bits
8 = +/- 256 bits
9 = +/- 512 bits
Example: RBS=0

RBS=
RBS?
RBS*
RBS#

RBS?

RBS=x
(same format as
command
argument)

Rx Descrambler

RDS=

1 byte,
value of 0, 1 or 2

Command or Query.
Rx Descrambler state, where:
0=Off
1=On (default descrambler type)
2 = On - IESS-315 (Turbo only)
Example: RDS=1 (Scrambler On)

RDS=

RDS?
RDS*
RDS#

RDS?

RDS=x
(see Description of
Arguments)

Rx Frequency

RFQ=

9 bytes

Command or Query.
Rx Frequency, where:
CDM-570L: 950 to 1950 MHz
CDM-570: 50 to 90 and 100 - 180 MHz
Resolution=100 Hz
Example: RFQ=0950.9872
Example: RFQ=0073.4528

RFQ=
RFQ?
RFQ*
RFQ#

RFQ?

RFQ=xxxx.xxxx
(see Description of
Arguments)

Rx Spectrum Invert RSI=

1 byte,
value of 0 or 1

Command or Query.
Rx Spectrum Invert, where:
0=Normal
1=Rx Spectrum Invert
Example: RSI=0 (selects Normal)

RSI=
RSI?
RSI*
RSI#

RSI?

RSI=x
(see Description of
Arguments)

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