Comtech EF Data CDM-760 User Manual
Page 249

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)