3 SCPI
3.3 Instrument-specific Commands
74
Setting format:
:DISPlay:DATA:UNITs <result>,<units>
Query format:
:DISPlay:DATA:UNITs? <result>
Parameter description:
Different parameters correspond to different unit ranges and default values:
<result>, <units>, default units
NFIGure, DB/LINear, DB
GAIN, DB/LINear, DB
YFACtor, DB/LINear, DB
TEFFective, K/CEL/FAR, K
PHOT, DB/LINear, DB
PCOLd, DB/LINear, DB
Return value:
<units>
Example:
:DISPlay:DATA:UNITs GAIN,dB
:DISPlay:DATA:UNITs? GAIN
Reset status:
NFIGure|GAIN|YFACtor|PHOT|PCOLd is in DB
TEFFective is in K
Key path:
Front panel
【
Scale
】
—>[Units]
[ Upper Limit ]
:DISPlay:TRACe:Y[:SCALe]:UPPer
Function description:
This command is used to set/query the upper limit of the amplitude of the
specified trace.
Setting format:
:DISPlay:TRACe:Y[:SCALe]:UPPer <trace>,<value>
Query format:
:DISPlay:TRACe:Y[:SCALe]:UPPer?<trace>
Parameter description:
<trace> NFIGure: Noise figure, range: [-99.99, 100.0] dB
GAIN: Gain, range: [-99.99, 100.0] dB
YFACtor: Y factor, range: [-99.99, 100.0] dB
TEFFective: Equivalent noise temperature, range: [-99990000, 100000000] K
PHOT: Hot power, range: [-99.99, 100] dB
PCOLd: Cold power, range: [-99.99, 100] dB
<value> Upper limit
Return value:
<units>
Example:
:DISPlay:TRACe:Y:SCALe:UPPer NFIGure,100.0dB
:DISPlay:TRACe:Y:SCALe:UPPer? NFIGure
Reset status:
Noise figure: 9.0 dB
Gain: 40.0dB
Y factor
：
10.0dB
