PeakTech 4105 Bedienungsanleitung Seite 114

5.12.4 Burst Count
The burst count defines the number of cycles to be output per burst. Used in the triggered burst mode
only (internal or external source). To set the burst count, press 【Burst】 key and then the 〖N
Cycles〗 softkey. Then use the knob or numeric keypad to enter the period.
See below formula to clarify the relationship between burst count and burst period.
Burst Count < Burst Period×frequency of burst signal
If the burst count is too long, the waveform generator will automatically increase the burst period up
to its maximum value to accommodate the specified burst count
5.12.5 Start Phase
The start phase defines the start phase of the burst. To set the burst phase, press 【Burst】 key and
then the 〖Start Phase〗 softkey. Then use the knob or numeric keypad to enter the desired phase in
degrees.
5.12.6 Burst Trigger Source
Burst trigger source: Internal (Immediate), External or Manual.
Press 〖Trig Imm/Ext〗softkey. If the Internal (immediate) source is selected, the rate at which the
burst is generated is determined by the burst period. If external source is selected, the burst count
and burst phase remain in effect but the burst period is ignored.
In the triggered burst mode, the waveform generator outputs a burst with the specified number of
cycles (burst count) each time a trigger is received by pressing〖Manual Trig〗softkey or Trig In
connector receives a TTL level signal. After the specified number of cycles have been output, the
waveform generator stops and waits for the next trigger.
In the gated burst mode, burst count is ignored but the burst period at least will be two. Press
〖Manual Trig〗softkey to enable or disable output signal. When disable output manual by manual,
input a TTL level trigger signal from Trig In connector in rear panel. If trigger signal is high level, the
output signal is enable. But if trigger signal is low level, the waveform generator will stop the level
point that corresponding to start phase until last bust is output. When the trigger signal becomes high
level, then enable the output signal again.
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