Comtech EF Data CDM-600/600L - Manual (Page 203)

CDM-600/600L Open Network Satellite Modem Revision 3
Appendix D MN/CDM600L.IOM
D–11
Parameter
Type
Command
(Instruction
Code and
Qualifier)
Arguments for
Command or
Response to
Query
Description of Arguments
Response to
Command
Query
(Instruction
Code and
Qualifier)
Response to Query
Transmit
Backward
Alarms
Enable TBA= 4 bytes, each a
value of 0
thru 2 Command or Query.
(IDR Parameter)
Transmit Backward Alarm enable:
0=Disable
1=Enable Internal (S/W)
2=Enable External (H/W)
Position indicates backward alarm numbers: 1234
Example: TBA=0120
TBA=
TBA?
TBA*
TBA# TBA? TBA=xxxx
(see Description of
Arguments)
Tx Clock
Source TCK= 1 byte, value 0
thru 3 Command or Query.
Tx Clock Source, where:
0=Internal
1=Tx Terrestrial
2=Rx Loop-Timed
3=External Clock
Example: TCK=0 (selects Internal)
TCK=
TCK?
TCK*
TCK# TCK? TCK=x
(see Description of
Arguments)
Transmit ESC
Type TET= 1 byte, value of
0 or 1 Command or Query.
(IDR Parameter)
Sets or queries IDR Transmit ESC Type, where:
0=64k data channel
1=2 Audio channels TET=
TET?
TET*
TET# TET? TET=x
(see Description of
Arguments)
Tx Frequency TFQ= 9 bytes Command or Query.
FOR CDM-600L:
Tx Frequency, 950 to 1950 MHz,
Resolution=100Hz.
Example: TFQ=0950.9872
FOR CDM-600:
With hardware revision xx.0, standard frequency range:
52 MHz to 88 MHz, or 104 MHz to 176 MHz.
With hardware revision xx.1, extended frequency range:
50 MHz to 90 MHz, or 100 MHz to 180 MHz.
(Use HRV? to obtain the hardware revision level)
Resolution=100Hz.
Example: TFQ=072.9872
Note: The CDM-600 supports both 70 and 140 MHz bands.
TFQ=
TFQ?
TFQ*
TFQ# TFQ? TFQ=xxxx.xxxx
(see Description of
Arguments)