Comtech EF Data CDM-600/600L - Manual (Page 204)

CDM-600/600L Open Network Satellite Modem Revision 3
Appendix D MN/CDM600L.IOM
D–12
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
TX LO
Frequency
(CDM-600L ONLY)
TLO= 6 bytes Command or Query.
BUC transmit LO frequency information in the form: xxxxxs, where:
xxxxx is the LO frequency in the range of 3000 to 65000 MHz
or 0=OFF
s=sign for the MIX
Note: For additional information refer to Appendix G. BUC FSK
COMMUNICATION; LO, MIX , and Spectrum Settings.
Terminal Frequency = BUC LO ± TFQ
TLO=
TLO?
TLO*
TLO# TLO? TLO=xxxxxs
(see Description of
Arguments)
Tx Power
Level
TPL= 4 bytes Command or Query.
NOTE: COMMAND NOT VALID IN AUPC MODE. TPL=
TPL?
TPL*
TPL# TPL?
TPL=xx.x
(see Description of
Arguments)
FOR CDM-600L:
Tx Output power level between 0 and -45 dBm in the form xx.x (minus
sign assumed). [Beyond –40 dBm exceeds the specification].
Example: TPL=13.4
Note: When Output Power Leveling is enabled, power level configuration
is not allowed, and this command is rejected. Response will be TPL*. The
response to the query TPL? will be the adjusted leveled value.
WHEN EXTERNAL 20dB ATTENUATOR IS PRESENT ON CDM-600L:
The power level indicated is the final power after the attenuator, if the
External 20dB Attenuator is present.
IN MANUAL (Normal) POWER MODE (AUP=0): Tx Output power level
may be configured between -45 and 0 dBm. [Between -45 and -40 dBm
exceeds the specification.]
IN MANUAL-LOW (Low Power) MODE (AUP=2): Tx Output power level
may be configured between -65 and -20 dBm in the form xx.x (minus sign
assumed). [Between -65 and -60 dBm exceeds the specification. The
power levels exceeding the specification are indicated on the front panel
menu by a
* .]
See Appendix J. KT/11202-1 STEP ATTENUATOR KIT for further details.
FOR CDM-600:
Tx Output power level between 0 and -20 dBm (minus sign assumed).
Example: TPL=13.4
Tx
Reed-
Solomon
Encoding TRS= 1 byte, value of
0 to 3 Command or Query.
Tx RS encoding
0=Normal (based on the Open Network framing mode selected)
1=IESS-310 mode – Available all framing modes, except EDMAC.
2=EF Data legacy standard (225,205) – Unframed only
3=IBS (126,112) – Unframed only
Available all framing modes, except EDMAC (this is a ‘don’t care’ if no
RS is selected under FEC Type)
Example: TRS=0
TRS=
TRS?
TRS*
TRS# TRS? TRS=x
(see Description of
Arguments)