10 Spectrum Emission Mask Measurement
Trace/Detector
Example
SEM:DET:CARR NEG
SEM:DET:CARR?
Notes
When you manually select a detector (instead of selecting Auto), that detector is used regardless of
other analyzer settings.
Note: This detector setting affects the reference channel. There is not a per trace detector.
You must be in the mode that includes SEM measurement to use this command. Use
:INSTrument:SELect to set the mode.
Couplings
See Couplings in the Trace Type section.
Preset
AVERage
State Saved
Saved in instrument state.
Range
Normal|Average|Peak|Sample|Negative Peak
Initial S/W Revision
Prior to A.02.00
Modified at S/W Revision
A.02.00, A.03.00
Offset Detector
Accesses a menu of functions that enable you to control the detector for offsets. The following choices are
available.
•
Auto– the detector selected depends on marker functions, trace functions, average type, and the
trace averaging function.
•
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 depends upon the Average Type selection (voltage, power or log scales).
•
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.
Key Path
Trace/Detector
Initial S/W Revision
Prior to A.02.00
Offset Detector Auto
Sets the detector to the default detection mode for the offsets. This mode is dependent upon the current
signal conditions of the offsets.
Key Path
Trace/Detector
Mode
SA, WCDMA, C2K, WIMAX OFDMA, TD-SCDMA, 1xEVDO, DTMB (CTTB), DVB-T/H, ISDB-T, CMMB,
1298
W-CDMA & HSPA Measurement Applications Reference
Summary of Contents for E6640A
Page 80: ...Table of Contents lxxx W CDMA HSPA Measurement Applications Reference ...
Page 188: ...3 Programming the Test Set Common Commands 188 W CDMA HSPA Measurement Applications Reference ...
Page 256: ...5 Mode Functions Mode Setup 256 W CDMA HSPA Measurement Applications Reference ...
Page 324: ...6 System Functions System 324 W CDMA HSPA Measurement Applications Reference ...
Page 369: ...8 Channel Power Measurement Auto Couple W CDMA HSPA Measurement Applications Reference 369 ...
Page 389: ...8 Channel Power Measurement Marker W CDMA HSPA Measurement Applications Reference 389 ...
Page 664: ...9 ACP Measurement Auto Couple 664 W CDMA HSPA Measurement Applications Reference ...
Page 669: ...9 ACP Measurement BW W CDMA HSPA Measurement Applications Reference 669 ...
Page 984: ...9 ACP Measurement View Display 984 W CDMA HSPA Measurement Applications Reference ...
Page 1001: ...10 Spectrum Emission Mask Measurement W CDMA HSPA Measurement Applications Reference 1001 ...
Page 1668: ...12 Code Domain Measurement Auto Couple 1668 W CDMA HSPA Measurement Applications Reference ...
Page 2354: ...14 QPSK EVM Measurement 2354 W CDMA HSPA Measurement Applications Reference ...
Page 2364: ...14 QPSK EVM Measurement Auto Couple 2364 W CDMA HSPA Measurement Applications Reference ...