Uni-Trend UTD2000E Series, Руководство пользователя

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UNI-T
UTD2000E Series Osilloscope Programming Manual
and FFT is not applicable.
<value> presents CHANnel<n>
， <n> take vaule as 1/2/3/4{CH1/ CH2/ CH3/ CH4}.

Return format：
Query return <n> take valu as 1/2/3/4/5/6/7/8/9.

For example：
:FUNCtion:SOUR1 CHAN1 choose channel 1 as source 1
:FUNCtion:SOUR1? query return1
:FUNCtion:SOUR2 CHAN2 choose channel 2 as source 2
:FUNCtion:SOUR2? query return 2
:FUNCtion:OPERation ADD add source 1 and source 2
:FUNCtion:FFT:WINDow

Command format：
:FUNCtion:FFT:WINDow {RECTangular|HANNing|HAMMing|BMAN}
:FUNCtion:FFT:WINDow?

Functional description：
FFT windowing to intercept signal. RECT, HANN, HAMM, BMAN is rectangular window,
Hanning window, Hamming window and Blacman window respectively.
 Return format：
Query return {RECTangular|HANNing|HAMMing|BMAN}.
 For example：
:FUNCtion:SOUR1 CHAN1 set channel 1 as source 1
:FUNC:FFT:WIND HAMM windowing Hamming window
:FUNC:FFT:WIND? query return HAMMing
:FUNCtion:FFT:VTYPe

Command format：
:FUNCtion:FFT:VTYPe {VRMS|DBRMS}
:FUNCtion:FFT:VTYPe?
 Functional description：
Set unit of FFT vertical diection as dbrms or VRMS. dbrms presents root mean square of power;
VRMS presents root mean square of voltage.

Return format：
Query return VRMS, DBRMS

For example：
:FUNCtion:SOUR1 CHAN1 set channel 1 as source 1
:FUNC:FFT:VTYP VRMS set unit of FFT vertical diection as root mean square of voltage
:FUNC:FFT:VTYP? query return VRMS