To measure band power
1 Initialize the analyzer:
Press [
Preset
].
2 Select video averaging:
Press [
Average
], [
average on
],
Press [
num averages
], 50, [
enter
],
Press [
average type
], [
rms (video)
]
3 Start an averaged measurement:
Press [
Meas Restart
].
4 Turn on the band power markers:
Press [
Marker Function
], [
band power markers
], [
band pwr mkr on
], [
band power
].
5 Change the width of the band:
Press [
band width
], [
Marker|Entry
],
then use the knob to change the width of the measurement band.
or
Press [
band width
],
then enter the desired band width with the numeric entry keys.
The display should appear as below. The grid lines have been turned off to
highlight the band power markers.
In this example you are measuring the power of the analyzer’s noise floor within
a defined band. The value displayed in the lower left corner of the display reflects
the total power within the frequency band encompassed by the markers. The grid
lines have been turned off to highlight the band power markers.
Band power magnitude
Band power
markers
Making Simple Noise Measurements
2-3
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