Source (src)
Select the Sync Source by pressing the "src:" (F4) to cycle through the list. Also, use
the knob or cursor keys to cycle through the same list.
Waveform Sync
The
Model
395 generates a sync
marker
pulse coincident with the
Main
Output
waveform.
For
standard waveforms, the sync marker is coincident with
the
zero-
crossing point
of
the waveform. For arbitrary wavefonns, the sync marker is coincident
with thefust few points (addresses)
of
the Arb wavefonn.
In
a sequence, each wavefonn
in the sequence generates its own sync marker.
Pos'n Marker
When position
(pos'n)
marker is selected, the
Model395
generates a pulse marker
patlt!ru
fOl
atùil.1ary
wavefornls. Thc pulsc pattern
i9
programmable from the Wavefarm
Edit screen, and an Arb wavefonn can have multiple position markers.
Burst Done
Burst Done produces a sync marker pulse coincident with the start
of
the last cycle
of
Trigger count; see Mode
Loop Done
Loop Done generates a sync marker pulse at the completion atthe end
of
each loop count
in a sequence.
Trigger
Trigger produces a sync marker which is generated by the trigger source: internai
or
externaI. Use the trigger sync source for any trigger or gated operation (mode, trigger
advance, etc.). Manual trigger and bus triggers also produce a trigger sync marker.
Sweep Marker
Sweep Marker produces a sync marker at the frequency programmed via "marker
...
"
from the Sweep Setup screen (SWEEP
OUT
key).
Pen Lift
When sweep is active, pen lift provides a sync marker to he used by plotters. Use this
output to place the pin
of
the pIotter down while the unit sweeps, and up during sweep
retrace.
Front Panel Operation Reference 4-75
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