461
ACP Measurement
Trace/Detector
Detector
Accesses a menu of functions that enables you to control the detectors for the current measurement.
Allows up to three (3) traces, but each use the same detector type choice. The following choices are
available:
• Auto- the detector selected is set to AVERage, unless the Radio Standard defaults state otherwise e.g.
it is set to Peak for Radio Standard = PDC when Device = both MS and BTS, and when Radio
Standard = NADC and Device = MS.
• Normal-the detector determines the peak of the CW-like signals, and it yields alternating maximums
and minimums of noise-like signals. This is also referred to as Rosenfell detection.
• Average-the detector determines the average of the signal within the sweep points. The averaging
method is Power (RMS).
• Peak-the detector determines the maximum of the signal within the sweep points.
• Sample-the detector indicates the instantaneous level of the signal at the center of the sweep points
represented by each display point.
• Negative Peak-the detector determines the minimum of the signal within the sweep points.
In swept analysis, the time interval of the data collection for the display sweep points also represents a
frequency interval. In FFT analysis, the sweep points represents just a frequency interval. The detector
determines the relationship between the spectrum computed by the FFT and the single data point
displayed for the sweep points.
Key Path Trace/Detector
Mode WCDMA, C2K, WIMAX OFDMA, TD-SCDMA, 1xEVDO, LTE, LTETDD
Remote Command :TRACe[1]|2|3:ACPower:DISPlay[:STATe] ON|OFF|0|1
:TRACe[1]|2|3:ACPower:DISPlay[:STATe]?
Example TRAC:ACP:DISP ON
TRAC:ACP:DISP?
Couplings Whenever you set Update to On for any trace, the Display is set to On for that
trace.
When Meas Method is RBW or FAST, Trace Display is disabled.
Preset 1|0|0 (On for Trace 1; Off for 2 &3)
State Saved Saved in instrument state.
Range 0 1
Initial S/W Revision Prior to A.02.00
Modified at S/W Revision A.03.00
Key Path Trace/Detector
Initial S/W Revision Prior to A.02.00