Scope Calibration Option
Calibrating the Pulse and Frequency Response on an Oscilloscope
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The default setting is 25 mV @ 1 MHz.
3.
For example, on a Fluke PM3392A oscilloscope, start with a signal of 1 V @ 1 MHz.
4.
Adjust the scale on your oscilloscope to achieve a good picture of the edge. For
example, on a Fluke PM3392A oscilloscope with a 1 V @ 1 MHz signal, use
200 mV/div.
5.
Adjust the time base on your oscilloscope to the fastest position available (20.0 or
50.0 ns/div).
Pulse aberrations
gl007i.eps
6.
Verify that your oscilloscope exhibits the proper rise time and pulse aberration
characteristics.
7.
Remove the input signal by pressing
.
The Leveled Sine Wave Function
The Leveled Sine Wave (Levsine) function uses a leveled sine wave, whose amplitude
remains relatively constant over a range of frequencies, to check the oscilloscope’s
bandwidth. When you check your oscilloscope, you change the wave’s frequency until
the amplitude displayed on the oscilloscope drops 30 %, which is the amplitude that
corresponds to the -3 dB point.
To access the Levsine menu, press the softkey under MODE until “levsine” appears.
Note
Make sure there is no cable connected to TRIG OUT while using the
Levsine function.
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