Chapter 3 91
Making EDGE (with GSM) Measurements
Making the Spectrum (Frequency Domain) Measurement
Band Power
A band power measurement using the markers calculates the average
power between two adjustable markers. To make a band power
measurement:
Press the
Marker key.
Press
Trace, Spectrum to activate a marker on the instantaneous
spectrum signal. Press the
Spectrum Avg key to activate a marker on
the average spectrum trace.
Press Function, Band Power.
Two marker lines are activated at the extreme left side of the
horizontal scale. Press Normal and move marker 1 to the desired
place by rotating the
RPG knob.
Press
Delta to bring marker 2 to the same place as marker 1.
Move marker 1 to the other desired position by rotating the
RPG
knob. Band power measures the average power between the two
markers. When the band power markers are active, the results are
shown in the results window as MeanPwr (BetweenMks).Whenthe
band power function is off the results window reads Mean Pwr
(Entire Trace).
Troubleshooting Hints
Changes made by the user to advanced spectrum settings, particularly
to ADC range settings, can inadvertently result in spectrum
measurements that are invalid and cause error messages to appear.
Care needs to be taken when using advanced features.
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