BNC 645 - Manual (Page 130)

130
ns
equency WaveformFr
BurstCount
d BurstPerio
200 + >
BURSt:INTernal:PERiod? [MINimum|MAXimum]
The burst period in seconds will be returned.
BURSt:PHASe {<angle>|MINimum|MAXimum}
Specify the starting phase in degrees or radians according to UNIT:ANGL
command. The range is from -360 degrees to +360 degrees (or from -2∏ to
+2∏ radians) and the default is 0 degree (0 radians).
--For sine, square and ramp waveform, zero degrees is the point at which the
waveform crosses zero volts or the dc offset in a positive going direction. For
arbitrary waveform, it is the first waveform point downloaded to memory. The
burst phase has no effect on pulse or noise waveform.
--In the gated burst mode, when the gate signal turns false, the current
waveform is complete and the waveform generator stops and the output
remains at the voltage level corresponding to the starting burst phase.
BURSt:PHASe? [MINimum|MAXimum]
The starting phase in degree or radians will be returned.
BURSt:STATe {OFF|ON}
Disable or enable the burst mode. To avoid multiple waveform changes, you can
enable burst after setting the modulation parameters. The waveform generator
allows only one of burst, sweep and modulations enabled at one time. As long as
one is enabled, the other will be turned off.
BURSt:STATe?
“0” (OFF) or ”1” (ON) will be returned.
BURSt:GATE:POLarity {NORMal|INVerted}
Specify whether the waveform generator uses true-high or true-low logic levels
on the rear-panel Ext Trig connector for an externally-gated burst. The default is
NORM (true-high logic).