
QM1004-2-18 Combined RF Upconverter/Downconverter
User Manual
5.6 SYSTem:READstate? [0-5]
Note:
The order of parameters has changed starting in v6 to system settings first, followed by channel
1 and then by channel 2 settings. The next v4 and v5 firmware updates will also be changed to this
sequence.
This query allows the user to read the parameters of the stored states without changing any internal reg-
isters. The query output is a list of parameters for the selected state. If no state parameter is given, the
returned state is state 0. The list of state parameters contains comma separated values, without spaces,
in the following order:
RF Power State, LNA Power State, Reference Frequency, External Reference En-
abled, External Referece Switch Override, Tune Frequency, External LO1 Enabled, External LO1 Switch
Override, LO1 PLL Mode, LO1 Reference Divider, Upconverter Attenuation, Downconverter Attenuation
.
See the respective command definitions for descriptions of each parameter.
Syntax
:
SYST
:
READ
?
Space
0-5
Query
:SYST:READ? 0
This query requests the parameter values of state 0.
Response
: 0,0,100,0,0,10.0000,0,0,0,1,0,0
∙
0 = POWEr:RF is set to 0 or OFF. (page 47)
∙
0 = POWEr:LNA is set to 0 or OFF. (page 46)
∙
100 = FREQuency:REFerence:FREQuency is set to 10 MHz. (page 42)
∙
0 = FREQuency:REFerence:EXTernal is set to 0 or Internal. (page 41)
∙
0 = External Reference Switch Override is 0 (switch-controlled).
∙
10.0000 = FREQuency:TUNE is set to 10 GHz. (page 32)
∙
0 = FREQuency:LO1:EXTernal is set to 0 or Internal. (page 35)
∙
0 = External LO1 Switch Override is 0 (switch-controlled).
∙
0 = FREQuency:LO1:PLLMode is set to 0 or Fractional. (page 37)
∙
1 = FREQuency:LO1:DIVider is set to 1. (page 34)
∙
0 = POWEr:CH1:ATTENuation is set to 0 dB (page 44)
∙
0 = POWEr:CH2:ATTENuation is set to 0 dB (page 45)
Error Message
If the parameter is not in the recognized format, error
-102, "Syntax error"
occurs.
If the parameter is less than 0 or greater than 5, error
-222, "Data out of range"
occurs.
Quonset Microwave
Revision 6.1.0
63