Agilent Technologies Agilent 33500 Series, User Manual

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Chapter 3 Features and Functions
Burst Mode
3
Start Phase
The start phase defines the start phase of the burst.
• Start phase: -360 degrees to +360 degrees. The default is 0 degrees.
• From the remote interface, you can set the start phase in degrees or
radians using the
UNIT:ANGL
command (see the Agilent 33500 Series
Programmer’s Reference Help for details).
• From the front panel, the starting phase is always displayed in degrees
(radians are not available). If you set the starting phase in radians
from the remote interface and then return to front-panel operation, the
waveform generator converts the phase to degrees.
• For sine, square, and ramp waveforms, 0 degrees is the point at which
the waveform crosses zero volts (or the DC offset value) in a positive-
going direction. For arbitrary waveforms, 0 degrees is the first
waveform point downloaded to memory. The burst phase has no effect
on noise waveforms.
• The burst phase is also used in the gated burst mode. When the gate
signal goes false , the current waveform cycle is completed and then
the waveform generator stops. The output will remain at the voltage
level corresponding to the starting burst phase.
• Front-Panel Operation : To set the burst phase, press and then
the
Start Phase
softkey. Then use the knob or numeric keypad to
enter the desired phase in degrees.
• Remote Interface Operation :
[SOURce[1|2]:]BURSt:PHASe {<
angle
>|MINimum|MAXimum}