13 Modulation Accuracy (Composite EVM) Measurement
Meas
Channel Measurement Function Array
Example
CALC:FPOW:POW1:DEF "Function=[BandPower, PeakPower, BandPower]"
Notes
This parameter array defines what measurement is being made for each individually-specified channel:
BandPower: Total power within the specified bandwidth of the channel (dBm)
BandDensity: Total power density within the specified bandwidth of the channel (dBm/Hz)
PeakPower: The peak power value within the specified bandwidth of the channel (dBm)
PeakFrequency: The frequency which corresponds to the peak power value within the specified bandwidth of
the channel. This frequency is relative to the center frequency (Hz)
XdBBandwidth: The half power (–3.01 dB) bandwidth of the highest amplitude signal that resides within the
channel (Hz), dB is configurable using XdBBandwidth parameter
OccupiedBandwidth: The bandwidth at which 99% of the total power resides within the channel (Hz),
percentage configurable using OccupiedBandwidthPercent parameter
All array parameters should have the same number of elements. Alternatively, if all the elements are the
same value, a single value with no square brackets can be used to define the parameter.
Preset
[BandPower]
Range
BandPower, BandDensity, PeakPower, PeakFrequency, XdBBandwidth, OccupiedBandwidth
Initial S/W
Revision
A.14.00
Channel Offset Frequency Array
Example
CALC:FPOW:POW1:DEF "OffsetFrequency=[–5e6, 0, 5e6]"
Notes
The offset frequency parameter array defines the difference between the center frequency to the center
frequency of each channel.
All array parameters should have the same number of elements.
Preset
[0]
Range
0 to 20 MHz
Default Unit
Hz
Initial S/W
Revision
A.14.00
Channel Occupied Bandwidth Percent Array
Example
CALC:FPOW:POW1:DEF "OccupiedBandwidthPercent =[0.95, 0.95, 0.95]"
Notes
This parameter only applies for channels whose Function is set to OccupiedBandwidth. The occupied
bandwidth percent parameter specifies the percent of total power in these channels. The valid range for this
parameter is 0.0 to 1.0, where 1.0 represents 100%. The default for this parameter is 0.99, which will
return the bandwidth that contains 99% of the total channel power.
W-CDMA & HSPA Measurement Applications Reference
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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 ...