Table of Contents
Advertisement
TRIGGER
The SWEEP light indicates that a sweep is in progress. The light is out between sweeps and during data entry. (The
light is out for sweep times 110 msec.)
After a sweep, the next sweep will be initiated only if:
continuous sweep mode is selected or a single sweep demand is made,
the trigger conditions are met,
l
data is not entered continuously from the front panel DATA controls or the HP-IB.
Continuous Sweep
follow another as soon as triggered. Pressing m initiates a new sweep.
Single Sweep
from continuous, one sweep is initiated provided that the trigger and data entry conditions are met. A sweep in
progress will be terminated and restarted upon (,,.,,, .
Zero Frequency Span Sweep
In zero frequency span, sweep times from 1 psec to 10 msec are also available. In these sweep times, the SWEEP
plexed directly onto the display along with the graticule and readouts. The graticule and readouts are refreshed
following each fast sweep.
To avoid flicker of the display when external or video triggers are less frequent than 25 msec, the analyzer will
trigger internally. If triggers dependent only on external or video trigger are required, press
or 11.111) '[,,,, disables "auto" video trigger feature
For zero frequency span sweep times 110 msec and 11*111) x or @ y, the CRT
display graticule and readout depend upon triggering. If no trigger is present, the CRT
display will be blank.
TRIGGER
The analyzer sweep is triggered by one of four modes selected.
l
l
l
The external trigger signal level must be between OV and + 5V
80 Manual Operation
NOTE
SWEEP
TRIGGER
AND
Advertisement
Table of Contents
