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To measure random noise
1 Initialize the analyzer:
Press [
Preset
].
2 Select a power spectral density measurement:
Press [
Measurement Data
], [
PSD
](selectch1 with a 2-channel analyzer).
3 Turn on averaging:
Press [
Average
], [
average on
].
4 Start an averaged measurement:
Press [
Meas Restart
].
5 Use the knob to move the marker along the trace.
The display should be similar to the one shown below.
To learn more about the choices you make in this measurement, display online
help for the various keys used (see “Using Online Help” if you are not familiar
with how to do this).
In this example you are measuring the noise-power of the analyzer’s noise floor.
The displayed marker value reflects noise-power normalized to a 1-Hz bandwidth.
Normalized noise
measurement
Making Simple Noise Measurements
2-2