To Measure Random Noise - Agilent Technologies 89410A Getting Started Manual

Making Simple Noise Measurements

To measure random noise

1
Initialize the analyzer:
Press [ ].
Preset
2
Select a power spectral density measurement:
Press [
Measurement Data
3
Configure the measurement and display:
Press [ ], [
Average average on
Press [ ], 500, [
num averages
Press [ ], [
average type
Press [ ] (bottom softkey),
Return
Press [ ], [
fast avg on update rate
4
Start an averaged measurement:
Press [ ].
Meas Restart
The display should appear as 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.
2-2
], [ ] (select
ch1
PSD
],
],
enter
],
rms (video)
], 100, [ ] to speed the measurement.
enter
with a 2-channel analyzer).
Normalized noise
measurement