Comtec CDM-840 - Transmit (Tx) Parameters Commands and Queries

CDM-840 Remote Router MN-CDM840
Serial-based Remote Product Management Revision 3
7–12
7.3.2 Transmit (Tx) Parameters Commands and Queries
Parameter
Type
Command
(Instruction
Code
& Qualifier)
Number of
Arguments for
Command or
Response to Query
Description of Arguments
(Note that all arguments are ASCII numeric codes from 48 and 57)
Response to
Command
(Target to
Controller)
Query
(Instruction
Code &
Qualifier)
Response to Query
(Target to Controller)
Tx Rolloff
TAR=
1 byte
Command or Query.
Sets or returns Tx Rolloff slope in the form x, where:
0=20%
1=25%
2=35%
EXAMPLE: <0/TAR=2[cr]
TAR =
TAR?
TAR *
TAR #
TAR?
TAR =x
(see Description of
Arguments)
Tx Data
Rate
N/A
10 bytes
Query only.
Returns Tx Data Rate in the form dddddd.ddd, where:
dddddd.ddd=value from 16 kbps to 15358.508 kbps, in 1 bps increments.
EXAMPLE: <0/TDR?[cr]
>0000/TDR=002047.999[cr][lf]
NOTE: The corresponding data rate will be automatically updated as per the
CCM MODCOD or the MODCOD currently being received.
TDR =
TDR?
TDR *
TDR?
TDR=xxxxxx.xxx
(see Description of
Arguments)
Tx
Frequency
TFQ
9 bytes
Command or Query.
Sets or returns Tx Frequency in the form xxxx.xxxx, where:
xxxx.xxxx=value from 0950.0000 to 2150.0000 MHz (L-Band), in 100 Hz
increments.
EXAMPLE: <0/TFQ=0950.9872[cr]
TFQ=
TFQ?
TFQ *
TFQ#
TFQ?
TFQ =xxxx.xxxx
(see Description of
Arguments)
Tx
MODCOD
TMC=
2 bytes
Command or Query.
Sets or returns Tx Modulation in the form xx, where:
0=BPSK 0.488
1=QPSK 0.533
2=QPSK 0.631
3=QPSK 0.706
4=QPSK 0.803
5=8-QAM 0.642
6=8-QAM 0.711
7=8-QAM 0.780
8=16-QAM 0.731
9=16-QAM 0.780
10=16-QAM 0.829
11=16-QAM 0.853
12=reserved (auto)
All other codes are invalid.
EXAMPLE: <0/TMC=6[cr]
TMC=
TMC?
TMC*
TMC#
TMC?
TMC=xx
(see Description of
Arguments)