3 SCPI
3.3 Instrument-specific Commands
49
[ System Down Converter LO Frequency Offset ]
:SENSe:CONFigure:MODE:SYSTem:LOSCillator:OFFSet
Function description:
This command is used to set/query the frequency offset of the system local
oscillator.
Setting format:
:SENSe:CONFigure:MODE:SYSTem:LOSCillator:OFFSet DSB|LSB|USB
Query format:
:SENSe:CONFigure:MODE:SYSTem:LOSCillator:OFFSet?
Return value:
DSB|LSB|USB
Parameter description:
LSB: Lower sideband (signal frequency < LO frequency)
USB: Upper sideband (signal frequency > LO frequency)
DSB: Double sideband (no frequency offset)
Example:
:SENSe:CONFigure:MODE:SYSTem:LOSCillator:OFFSet DSB
:SENSe:CONFigure:MODE:SYSTem:LOSCillator:OFFSet?
Reset status:
lower sideband
Key path:
Front panel
【
Mode Setup
】
—>[DUT Setup]—>[DownConv]—>[Sideband]
[ System DownConverter Measurement Frequency Type ]
:SENSe:CONFigure:MODE:SYSTem:FREQuency:CONText
Function description:
This command is used to set/query the measurement frequency input type of the
system down converter.
Setting format:
:SENSe:CONFigure:MODE:SYSTem:FREQuency:CONText RF|IF
Query format:
:SENSe:CONFigure:MODE:SYSTem:FREQuency:CONText?
Return value:
RF|IF
Parameter description:
RF: The input frequency is the RF frequency of the device under test
IF: The input frequency is the IF frequency of the device under test
Example:
:SENSe:CONFigure:MODE:SYSTem:FREQuency:CONText RF
:SENSe:CONFigure:MODE:SYSTem:FREQuency:CONText?
Reset status:
IF
Key path:
Front panel
【
Mode Setup
】
—>[DUT Setup]—>[DownConv]—>[Measurement Freq Type]
[ DownConverter Fixed IF Frequency ]
:SENSe:CONFigure:MODE:DOWNconv:IF:FREQuency
Function description:
This command is used to set/query the downconverter fixed IF frequency.
Setting format:
:SENSe:CONFigure:MODE:DOWNconv:IF:FREQuency <freq>
Query format:
:SENSe:CONFigure:MODE:DOWNconv:IF:FREQuency?
Return value:
The default unit is Hz
Parameter description:
<freq> Fixed IF frequency
The frequency unit that can be input is Hz, kHz, MHz, GHz or k, M, G, and the default unit is Hz
Range: 3986A: [10MHz, 4GHz]
Содержание 3986 Series
Страница 1: ...3986 Series Noise Figure Analyzer Programming Manual...
Страница 4: ......
Страница 8: ...3986 Series noise figure analyzer Table of Contents 4...
Страница 107: ...3 SCPI 3 3 Instrument specific Commands 99...
Страница 119: ...4 Programming example 4 2 Advanced operation example 111...