Technical data

598 Chapter 20
W-CDMA or W-CDMA (with HSDPA) Over Air
Optional W-CDMA or W-CDMA (with HSDPA) Over the Air Measurement
Settings
W-CDMA or W-CDMA (with HSDPA)
Over Air
Setting Average, Sweep, and Restart
Setting the Sweep
You can select either continuous or single sweep. Continuous sweep provides
repeated, ongoing measurements. Single sweep performs a single measurement that
is repeated only when you push the Single button.
To set sweep:
Setting Averaging
You can choose to have averaging On or Off and to set the number of averages you
want to take. Averaging only applies to the data, not the trace. When initialized, the
Agilent E7495A/B defaults to running average:
• A running average computes the new result as the weighted sum of the last result
and the new measurement. The last result is weighted by (n – 1)/n. The new
result is weighted by 1/n. Each new measurement produces a new result.
Averaging applies to the following measurement metrics and the control channel
view only:
• Frequency Error
• Noise Floor
•EVM
•PCDE
• Carrier Feedthrough
• Channel Power
• CPICH power
• all the delta powers
Step Notes
1 [Average/Sweep]
2 [Continuous] or [Single] Each time you press this softkey, the
selected option changes.