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13 Modulation Accuracy (Composite EVM) Measurement
Meas Setup
Meas Setup
Displays the measurement setup menu for the currently selected measurement.
Key Path
Front-panel key
Initial S/W Revision
Prior to A.02.00
Avg Number
Sets the number of data acquisitions that are averaged. After the specified number of average counts is
reached, the averaging mode (termination control) setting determines the averaging action.
Key Path
Meas Setup
Mode
WCDMA
Remote Command
[:SENSe]:RHO:AVERage:COUNt <integer>
[:SENSe]:RHO:AVERage:COUNt?
[:SENSe]:RHO:AVERage[:STATe] OFF|ON|0|1
[:SENSe]:RHO:AVERage[:STATe]?
Example
RHO:AVER:COUN 100
RHO:AVER:COUN?
RHO:AVER OFF
RHO:AVER?
Notes
You must be in the W-CDMA mode to use this command. Use INSTrument:SELect to set the mode.
Preset
10
ON
State Saved
Saved in instrument state.
Min
1
Max
10000
Initial S/W Revision
Prior to A.02.00
Avg Mode
Selects the type of termination control used for the averaging function. This determines the averaging
action after the specified number of data acquisitions (average count) is reached. You can select between
the Exp (exponential) and Repeat averaging modes. This selection only affects the averaging result after
the number of N averages is reached. You can use the Avg Number key to set N.
Key
SCPI
Description
Exponential
averaging
EXPonential
When Measure is set at Cont, data acquisitions continue indefinitely. After
N averages, exponential averaging is used with a weighting factor of N
(the displayed average count stops at N). Exponential averaging weights
2066
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 ...