Appendix A SCPI Command Reference
AFANalyser subsystem
WCDMA Options Version 6.20
451
AFANalyser subsystem
The AFAN subsystem controls the accessible parameters of the AF analyzer.
Please note that all commands of this subsystem require the Audio Option to be
installed on your 4400.
:AFANalyser:INPut
:AFANalyser:SAMPlerate
Description
This command sets the output volume of the external speaker connected to the
Willtek 4400 using the “AUX 4 (AUX out)”.
int1 represents a relative volume in percentages of the maximum volume.
Query
The query form of this command will return the current setting. The string delivered
back will contain one integer.
Example
:AFGenerator:AUXout:VOLume 20
:AFG:SPE:VOL? Value returned: "20".
This means that the volume at the auxiliary output is at 20% of its maximum.
Syntax
:AFANalyser:INPut <PredefExp>
Parameters
PredefExp is one of the following predefined expressions: AF|AUXin.
Default is AF.
Description
Selects the input signal for the AF analyzer of the Willtek 4400.
AF means that the signals applied to the test set's “AF in” connector will be for-
warded to the AF analyzer, while
AUXin means that the signals applied to the test set's AUX in input will be for-
warded to the AF analyzer. The AUX in input is available on the AUX 4 connector
on the back panel of the Willtek 4400 (RF section).
Notes
– This command requires the Audio Option to be installed on your Willtek 4400.
– The codec is an option to the Willtek 4400. For details, please refer to section
“Accessories and options” on page 29.
– Input voltage limitations apply on the AF in and the AUX in connectors of the
Willtek 4400. Please refer to section “Connectors” on page 9 for details.
Query
The query form of this command returns the current setting. A query will return a
string, containing the short-form version of one of the predefined expressions
explained above.
Example
:AFANalyser:INPut AUXin
:AFAN:INP? Value returned: "AUX".
Syntax
:AFANalyser:SAMPlerate <PredefExp>
Parameters
PredefExp is one of the following predefined expressions:
KHZ8|KHZ11|KHZ22|KHZ33|KHZ44|KHZ48. Default is KHZ48.
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