Filter
Top Products
316 Chapter 5
Language Reference
SENSe Subsystem
cdma2000, W-CDMA (Trial & ARIB) mode
[:SENSe]:ACP:SWEep:TYPE FFT|SWEep
[: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]|EXTernal2|FRAMe|IF|IMMediate|RFBurst
[: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