Agilent Technologies E4406A VSA cdma2000, W-CDMATrial & ARIB mode, SENSe:ACP:SWEep:TYPE FFT|SWEep

Models: E4406A VSA

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cdma2000, W-CDMA (Trial & ARIB) mode

Language Reference

SENSe Subsystem

cdma2000, W-CDMA (Trial & ARIB) mode

[:SENSe]:ACP:SWEep:TYPE FFTSWEep

[:SENSe]:ACP:SWEep:TYPE?

Selects the type of sweeping.

Fast (W-CDMA (3GPP) mode only) - the data acquisition is made with the wide channel integration bandwidth and the time-domain data is divided into the narrow data to apply FFT. This mode is faster than the FFT mode but less accurate in power levels.

FFT - the data acquisition is made with the narrow channel integration bandwidth and apply fast Fourier transform (FFT) to convert to the frequency doman data.

Sweep - the measurement is made by the swept spectrum method like the traditional swept frequency spectrum analysis to have better correlation to the input signal with a high crest factor (peak/averatge ratio). This mode may take a longer time than the FFT mode. See [:SENSe]:ACP:SWEep:DETector[:FUNCtion].

Factory Preset

 

and *RST:

FFT

Remarks:

You must be in the cdma2000, W-CDMA (3GPP), or

 

W-CDMA (Trial & Arib) mode to use this command.

 

Use INSTrument:SELect to set the mode.

Adjacent Channel Power—Trigger Source

[:SENSe]:ACP:TRIGger:SOURce

EXTernal[1]EXTernal2FRAMeIFIMMediateRFBurst

[:SENSe]:ACP:TRIGger:SOURce?

Select the trigger source used to control the data acquisitions.

EXTernal 1 – front panel external trigger input

EXTernal 2 – rear panel external trigger input

FRAMe – internal frame trigger from front panel input

IF – internal IF envelope (video) trigger

IMMediate – the next data acquisition is immediately taken, capturing the signal asynchronously (also called free run).

RFBurst – wideband RF burst envelope trigger that has automatic level control for periodic burst signals.

Factory Preset

 

and *RST:

IMMediate for BS

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Chapter 5

Page 316
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Agilent Technologies E4406A VSA cdma2000, W-CDMATrial & ARIB mode, SENSe:ACP:SWEep:TYPE FFT|SWEep, SENSe:ACP:SWEep:TYPE?