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Making an A ttenuation Swe ep
Example, an Automatic Attenuation Sweep

Changing the Attenuation in a Manual Sweep

To go to the next attenuation factor in the sweep, press or .
To go to the previous attenuation factor in the sweep, press or .

3.4 Example, an Automatic Attenuation Sweep

This example uses the Agilent 8156A Attenuator o n its own.
We set up the instrument to sweep from 5dB to 0dB with an interval
of 0.5dB, dwelling for a second at each attenuation factor.
1. First we want to reset the instrument.
NOTE If someone else is using this instrument, please check with them before
resetting, or store their setting for later recall.
a. Press RECALL.
b. Press EXEC.
2. Start the automatic sweep application.
a. Press SWP.
b. If the sweep parameter is set to MANUAL, press , or to set
it to AUTO.
3. Set the start attenuation factor.
a. Press SWP.
b. Use the Modify keys to set START to 5.000dB.
4. Set the attenuation factor step size.
a. Press SWP, to get the stop parameter. We do not need to edit
this parameter.
b. Press SWP to get the step parameter.