5080A/SC
Users Manual
10
The Edge Function
The Edge function is used for calibrating the pulse response for your oscilloscope. To
reach the Edge menu, press the softkey under MODE until “edge” appears.
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Each option in the Edge menu is described below.
•
OUTPUT @ SCOPE
terminal (50
Ω
) Indicates the location and impedance of the
signal output. If the signal does not appear on the oscilloscope, press
. To
disconnect the signal, press
.
You cannot change the output impedance in Edge mode.
•
TRIG
If you are using the external trigger, use this key to toggle the trigger off and
on. When on, the reading will show “/1” which indicates that the external trigger is at
the same frequency as the edge output.
The external trigger can be useful for many digital storage oscilloscopes that have
difficulty triggering on fast rise time signals.
•
MODE
Indicates you are in Edge mode. Use the softkey to change modes and open
the corresponding menus for the other three oscilloscope calibration modes.
Pulse Response Calibration Procedure for an Oscilloscope
This sample procedure shows how to check the oscilloscope’s pulse response. Before you
check your oscilloscope, see your oscilloscope’s manual for the recommended calibration
settings.
Before you start this procedure, verify that you are running the oscilloscope option in
Edge mode. If you are, the Control Display shows the following menu.
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Perform the following sample procedure to calibrate the pulse response.
1.
Connect the 5080A to Channel 1 on the oscilloscope. Select 50
Ω
impedance or use a
50
Ω
termination directly at the oscilloscope input. Verify that the
key is lit,
indicating that the signal is connected.
2.
Alter the voltage setting for the signal so it matches the amplitude value
recommended by your oscilloscope manufacturer for calibrating the edge response.
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