Keysight E6640A, Measurement Applications User & Programmer Reference

Page: 965 / 2870

9 ACP Measurement
Trace/Detector
other analyzer settings.
The detector choices are:
•
The Normal detector determines the peak of CW-like signals, and it yields alternating maximums
and minimums of noise-like signals. This is also referred to as Rosenfell detection.
•
The Average detector determines the average of the signal within the data range. The averaging
method is Power (RMS).
•
The Peak detector determines the maximum of the signal within the data range.
•
The Sample detector indicates the instantaneous level of the signal at the center of the data
represented by each display point.
•
The Negative Peak detector determines the minimum of the signal within the data range.
Because they may not find a spectral component's true peak, neither average nor sample detectors
measure amplitudes of CW signals as accurately as peak or normal, but they do measure noise
without the biases of peak detection.
When a detector selection is made, the menu returns to the previous menu.
Couplings When Detector setting is “Auto” ([:SENSe]:ACPower:DETector:AUTO?), Detector is set to what the
Radio Standard defaults states (see detector section) for all conditions of Trace Type and for all
traces. When set to Manual, all Traces use the same detector type. When Average State = Off then
Trace Types AVERage, MaxHold and MinHold will not function, since Averaging is required to be ‘on’
for them to operate.
Only one detector type for all 3 traces is allowed.
When Meas Method is RBW or FAST, Detector is disabled.
Preset AVERage
State Saved Saved in instrument state.
Range Normal|Average|Peak|Sample|Negative Peak
Backwards
Compatibility SCPI [:SENSe]:ACPR:SWEep:DETector[:FUNCtion]
Initial S/W Revision Prior to A.02.00
Modified at S/W Revision A.02.00, A.03.00
W-CDMA & HSPA Measurement Applications Reference 965