Comtech EF Data CDM-760 - Manual (Page 246)

Serial-based Remote Product Management Revision 2
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
8–12
Parameter
Type
Command
(Instruction
& Qualifier)
Number of
Arguments
Description of Arguments
Response to
Command
Query
(Instruction &
Qualifier)
Response to Query
Tx ModCod
(cont.)
For NET=2: Sets or returns Tx 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
Tx
Symbol Rate
TSR = 10 bytes,
numeric
Command or Query.
Sets or returns Tx Symbol Rate, in ksps, in the form dddddd.ddd where the range is:
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/TSR=150000.000 (150 Msps)
TSR?
TSR=
TSR*
TSR#
TSR? TSR=xxxxxx.xxx
(see Description of
Arguments)
Tx Data Rate TDR = 10 bytes Command or Query.
Sets or returns Tx Data rate in kbps, in 1 bps steps, in the form xxxxxx.xxx.
NOTE: If the Data Rate is set, then the Symbol Rate will be automatically calculated and updated. The
symbol rate will be limit checked to assure valid ranges.
EXAMPLE: <0/TDR=002047.999 (2047.999 kbps)
TDR=
TDR?
TDR*
TDR#
TDR? TDR=xxxxxx.xxx
(see Description of
Arguments)
Tx Spectrum
Invert
TSI = 1 byte, value
of 0 or 1
Command or Query.
Sets or returns Tx Spectrum Invert in the form x, where:
0 = Normal
1 = Tx Spectrum Inverted
EXAMPLE: <0/TSI=0 (selects Normal)
TSI=
TSI?
TSI*
TSI#
TSI? TSI=x
(see Description of
Arguments)