Viavi 3900 Series, Programming Manual

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Audio/Demod Signal Rx Meter Remote Commands
5 - 15
5.7.8 AF Hum & Noise - Reference Value
:CONFigure:AF:ANALyzer:HN:REFerence:VALue
:CONFigure:AF:ANALyzer:HN:REFerence:VALue?
5.7.9 AF Hum & Noise - Upper Limit Enable
:LIMits:AF:HN:UPPer:ENABle
:LIMits:AF:HN:UPPer:ENABle?
Description:
Set command defines the reference value for AF Hum and Noise measurement.
Query command returns parameter setting.
Range: -100.0 to +100.0 dB
Units: dB
Default Value: 12.0 dB
Set/Query Format: NRf | NR2
Example: :CONFigure:AF:ANALyzer:HN:REFerence:VALue 1dB
Sets Hum & Noise Reference value to 1.0 dB.
Query Response:
:CONFigure:AF:ANALyzer:HN:REFerence:VALue?
1.00
Query command returns HN Reference Value using
:CONFigure:AF:ANALyzer:HN:REFerence command.
AF Analyzer Noise measurement type must be defined as Signal to Noise Ratio
(:AF:ANALyzer:NTYPe SN) and SNR measurement defined as Hum & Noise
(:CONFigure:AF:ANALyzer:SNR:MODE 0) to obtain valid Hum & Noise
measurement.
Description: Set command Enables/Disables Upper Limit for AF Hum and Noise
measurement.
Query command returns parameter setting.
Parameter: OFF | ON | 0 | 1
Default Value: OFF
Set/Query Format: Boolean
Example: :LIMits:AF:HN:UPPer:ENABle ON
Enables Upper Limit for Hum & Noise measurement.
Query Response:
:LIMits:AF:HN:UPPer:ENABle?.
1
AF Analyzer Noise measurement type must be defined as Signal to Noise Ratio
(:AF:ANALyzer:NTYPe SN) and SNR measurement defined as Hum & Noise
(:CONFigure:AF:ANALyzer:SNR:MODE 0) to obtain valid Hum & Noise
measurement.
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