HP 54520 Series - Page 207

Utility Menu
System Menu
AC BNC Softkey
The AC BNC softkey selects between a probe compensation signal and the
system trigger. When probe comp is selected, the probe comp signal is an
output at the rear-panel BNC connector and at the front-panel probe
compensation terminals. When trigger out is selected, the trigger signal is an
output at the rear-pane! BNC connector and at the front-panel probe
compensation terminals. The default signal is the probe compensation signal
which is a square wave of about 500 Hz.
Both the probe comp signal and the trigger out signal are about 0 V to
-800 mV into a high impedance, and about 0 V to —-400 mV into 50 Q. You
can vary the frequency of the probe comp signal from 250 mHz to about
32 kHz. The signal at the rear-panel AC BNC connector has a rise of time of
about 400 ps, while the signal at the front-panel probe compensation
connector has a rise time of about 1 ps.
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