Mocomtech CDM-QX User Manual
Page 257

CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Revision
7
Appendix C
MN/CDMQX.IOM
C–39
C.6.9 Spectrum Analyzer Commands and Queries – Rx Module ONLY
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
Spectrum
Analyzer
Center
Frequency
SPF=
9 bytes
Command or Query.
Tx Frequency in the form xxxx.xxxx, where:
0950.0000 to 1950.0000 MHz (for L-Band units) or
0500.0000 to 0090.0000 and 0100.0000 to 0180.0000 MHz (for
70/140 MHz units)
Resolution=100 Hz
Example: SPF=0050.9872
SPF=
SPF?
SPF*
SPF#
SPF$
SPF^
SPF@
SPF? SPF=xxxx.xxxx
(see Description of
Arguments)
Spectrum
Analyzer
Mode
SPM=
1 byte
Command or Query.
Sets mode in the form x, where:
0=Off
1=On
SPM=
SPM?
SPM*
SPM#
SPM$
SPM^
SPM@
SPM? SPM=x
(see Description of
Arguments)
Spectrum
Analyzer
Span
SPS=
1 byte
Command or Query.
Sets span in the form x, where:
0 = 97.65625 kHz
1 = 195.3125 kHz
2 = 390.625 kHz
3 = 781.25 kHz
4 = 1.5625 MHz
5 = 3.125 MHz
6 = 6.25 MHz
7 = 12.5 MHz
SPS=
SPS?
SPS*
SPS#
SPS$
SPS^
SPS@
SPS? SPS=x
(see Description of
Arguments)