WILLTEK 4403 - Page 411

Appendix A SCPI Command Reference
CALCulate Subsystem
WCDMA Options Version 6.20
389
:CALCulate:AFANalyser
:SINad:LIMit:STATe
:CALCulate:AFANalyser
:SINad:LIMit:UPPer[:DATA]
:CALCulate:AFANalyser
:SINad:LIMit:LOWer[:DATA]
Query
This command delivers one boolean number, indicating whether the user-definable
limits of the SINAD measurement were violated by a measurement result value or not.
A 0 means that all measurement result values were within the limits set, while a 1
indicates that at least one measurement result value did violate at least one of the
limits.
The limits can be set using the commands described below.
Notes
– The SINAD measurement is carried through with a 1 kHz sine wave.
– All audio measurements require the Audio Option to be installed on your Willtek
4400.
Example
:MEAS:ARRay:AFAN:SIN 5
:CALC:AFAN:SIN:LIM?
String returned: "1"
This string delivered back indicates that there was a violation of the limits set.
Syntax
:CALCulate:AFANalyser
:SINad:LIMit:STATe <PredefExp>
Parameters
PredefExp is one of the following predefined expressions: ON|OFF. Default is ON.
Description
This command switches the check of the measurement result values of the
MEAS:AFAN:SIN measurement against their user-definable limits either on or off.
Query
There is no query form of this command available.
Example
:CALC:AFAN:SIN:LIM:STAT ON
Switches the limit check of the SINAD measurement on.
Syntax
:CALCulate:AFANalyser
:SINad:LIMit:UPPer[:DATA] <real1>
Parameters
real1 is a floating point real number. The minimum value is 0.0, the maximum is
100.0. The minimum resolution possible is 0.1, the default value is 20.0.
Description
Sets the upper limit for the SINAD measurement. The physical dimension of the num-
ber stated is dB.
Query
The query form of this command is not available.
Example
:CALC:AFAN:SIN:LIM:UPP 100
Sets the upper limit of the SINAD measurement to 100%nbsp;dB.
Syntax
:CALCulate:AFANalyser
:SINad:LIMit:LOWer[:DATA] <real1>