Comtech EF Data CDM-710 Installation And Operation Manual page 211

CDM-710 Satellite Modulator
Remote Control
Command
Parameter (Instruction for Command
Type Code and
Qualifier)
Tx Power Level TPL= 5 bytes
Tx Carrier State TXO= 1 byte
Tx Output IMP= 1 byte
Impendance
Tx Data Rate N/A 10 bytes
Arguments
Description of Arguments
or Response
to Query
Tx Output power level, where:
s=sign ( + / - )
xx.x = Tx Output power level, +05.0 and –20.0 dBm.
-25.0 to –05.0 dBm
L-Band:
70/140 MHz: -20.0 to +00.0 dBm
Note: Beyond –20 dBm is beyond the specification.
Example: TPL = -13.4
Tx Carrier State, where:
0=OFF due to front panel or remote control command
1=ON
Example: TXO=1 (Tx Carrier ON)
Tx output impedance, where:
0=50 Ohm
1=75 Ohm
Example: IMP=0 (Set impedance to 50 Ohms)
* NOTE: Setting Tx Impedence is only possible on 70/140 Mhz
units.
Composite Tx Data rate, in kbps.
Resolution=1 bps.
Example: TDR=002047.999 (which is 2047.999 kbps)
Response
to
Command
TPL=
TPL?
TPL*
TPL#
TXO=
TXO?
TXO*
TXO#
IMP=
IMP?
IMP*
IMP#
N/A
A–50
Revision 9
MN/CDM710.IOM
Query
(Instruction
Response to Query
Code and
Qualifier)
TPL? TPL=sxx.x
adjusted value
TXO? TXO=x
IMP? IMP=x
TDR? TDR=xxxxxx.xxx