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CDM-Qx Satellite Modem
Remote Control
Command
Parameter
(Instruction
Type
Code and
qualifier)
EDMAC Slave
ESA=
Address Range
(Modem only)
External
ERF=
Reference
Frequency
Internal
IRA=
Reference
Oscillator Adjust
Test Mode
TST=
(Modem or
Tx only)
Arguments
for Command
Description of Arguments
or Response
to Query
4 bytes
Command or Query
EDMAC Slave Address Range – sets the range of addresses of
distant-end units (modems or transceivers), which this unit, as
the Master, will forward, messages for. Only values which are
integer multiples of 10 are permitted (0010, 0020, 0030, 0040,
etc)
Example: ESA=0090
This command is only valid for an EDMAC Master. When used
as a Query, it may be sent to an EDMAC Slave, which will
respond with the appropriate address.
1 byte, value of
Command or Query
0 through 6
External Reference Frequency, where:
0=Internal, external reference connector not used
1=External 1 MHz
2=External 2 MHz
3=External 5 MHz
4=External 10 MHz
5=External 20 MHz
6=Internal with 10 MHz driven to reference connector
7=External auto detect(1,2,5,10,or 20 MHz)
Example: ERF=0 (External reference not used, uses Internal)
5 bytes, numeric
Command or Query
Fine adjustment to the internal reference oscillator tuning
voltage, thereby, fine tuning the required internal reference
frequency.
Syntax: IRA=sxxxx
Where: s = sign (- or +)
Range: -2048 to +2047.
Example: IRA=+0192
1 byte, value of
Command or Query
0 through 6
CDM-QX Test Mode, where:
0=Normal Mode (No Test)
1=IF Loopback
2=Reserved
3=I/O Loopback
4=RF Loopback
5=TX CW
6=TX Alternating 1,0 Pattern
7=SSB CW
Example: TST=1 (IF Loopback)
ESA=
ESA?
ESA*
ESA?
ESA^
ERF=
ERF?
ERF*
ERF#
ERF^
IRA=
IRA?
IRA*
IRA#
IRA^
TST=
TST?
TST*
TST#
TST$
TST^
TST@
C-17
Response to
Query
Command
(Instruction
(Target to
Code and
Controller)
Qualifier)
ESA?
ERF?
IRA?
TST?
Revision 6
MN/CDMQx.IOM
Response to
query
(Target to
Controller)
ESA=xxxx
(see description of
arguments)
ERF=x
(see description of
arguments)
IRA=x
(see description of
arguments)
TST=x
(see description of
arguments)
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