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Comtech EF Data CDM-760 User Manual

Page 249

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Serial-based Remote Product Management

Revision 2

CDM-760 Advanced High-Speed Trunking Modem

MN-CDM760

8–15

Parameter

Type

Command

(Instruction

& Qualifier)

Number of

Arguments

Description of Arguments

Response to

Command

Query

(Instruction &

Qualifier)

Response to Query

Rx ModCod

(cont.)

For NET=2: Sets or returns Rx Modulation in the form xx, where:

00 = ACM

01 = reserved (QPSK 1/4)

02 = reserved (QPSK 53/180)

03 = reserved (QPSK 1/3)

04 = reserved (QPSK 11/30)

05 = reserved (QPSK 2/5)

06 = reserved (QPSK 77/180)

07 = reserved (QPSK 83/180)

08 = QPSK 1/2

09 = QPSK 8/15

10 = QPSK 17/30

11 = QPSK 3/5

12 = QPSK 19/30

13 = QPSK 2/3

14 = QPSK 127/180

15 = QPSK 3/4

16 = QPSK 4/5

17 = QPSK 5/6

18=QPSK 31/36

19=QPSK 8/9

20=QPSK 9/10

21=8PSK 17/30

22=8PSK 3/5

23=8PSK 19/30

24=8PSK 2/3

25=8PSK 127/180

26=8PSK 3/4

27=8PSK 4/5

28=8PSK 5/6

29=8PSK 31/36

30=8PSK 8/9

31=8PSK 9/10

32=16-ASK 19/30

33=16-APSK 2/3

34=16-APSK 128/180

35=16-APSK 3/4

36=16-APSK 4/5

37=16-APSK 5/6

38=16-APSK 31/36

39=16-APSK 8/9

40=16-APSK 9/10

41=32-APSK 127/180

42=32-APSK 3/4

43=32-APSK 4/5

44=32-APSK 5/6

45=32-APSK 31/36

46=32-APSK 8/9

47=32-APSK 9/10

48=64-APSK 4/5

49=64-APSK 5/6

50=64-APSK 31/36

51=64-APSK 8/9

52=64-APSK 9/10

All other codes are invalid.

Rx Symbol

Rate

RSR =

10 bytes,

numeric

Command or Query.

Sets or returns Rx Symbol Rate, in ksps, in the form dddddd.ddd in the range:

QPSK – From .1 to 150000 ksps

8PSK – From .1 to 120000 ksps

16-APSK – From .1 to 90000 ksps

32-APSK – From .1 to 72000 ksps

64-APSK – From .1 to 54000 ksps

NOTE: If the Symbol Rate is set, then the Data Rate will be automatically calculated and updated.

EXAMPLE: <0/RSR=150000.000

RSR=

RSR?

RSR*

RSR#

RSR?

RSR=dddddd.ddd

(see Description of

Arguments)

Rx Data Rate N/A

10 bytes

Query only.

Returns Rx Data Rate, in kbps, in the form xxxxxx.xxx

EXAMPLE: <0/RDR?

>0000/RDR=002047.999

RDR?

RDR*

RDR#

RDR?

RDR=xxxxxx.xxx

(see Description of

Arguments)

Rx Spectrum

Invert

N/A

1 byte, value

of 0 or 1

Query only.

Returns Rx Spectrum Invert in the form x, where:

0 = Normal

1 = Rx Spectrum Inverted

EXAMPLE: <0/RSI?

>0000/RSI=0 (selects Normal)

RSI?

RSI*

RSI#

RSI?

RSI=x

(see Description of

Arguments)