Chapter 4 233
Key Function Descriptions
Key Descriptions
DETECTOR
POS PEAK Selects the positive-peak detector mode. Used to detect
the positive-peak noise level of a trace. This is the
detector selected by MAX HOLD.
Front-panel key access:
TRACE
DETECTOR
SAMPLE Sets the detector to sample mode. This mode is used
with the video averaging and marker noise functions,
as well as for the combination of resolution bandwidths
greater than or equal to 300 Hz and video bandwidths
less than or equal to 100 Hz. Note that when the
resolution bandwidth is not much greater than the
display resolution, the peak responses can be missed
when the video signal is sampled.
Front-panel key access:
TRACE
DISPLAY Accesses the keys that control the display including
setting the intensity and focus, turning the display line
and threshold line on and off, turning the graticule and
annotation on and off, and entering a screen title.
Front-panel key access:
DISPLAY
DLY SWP[ ] Delays the start of the sweep until the specified time
elapses after the trigger event. With Option 007 the
delay can be set to start the sweep before the trigger
event, when using sweep times <30 ms. The second line
of the softkey indicates the current setting of the sweep
delay. This function is useful when making gated
measurements.
Front-panel key access:
SWEEP
DLY SWP
ON OFF Turns on and off the function that delays the start of
the sweep untilafter the trigger event. With Option 007
the sweep can be started before the trigger event.
Useful when making gated measurements.
Front-panel key access:
SWEEP
DONE
EDIT Exits the ampcor edit menu and returns to the ampcor
menu.
Front-panel key access: CAL
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