PeakTech 4105 Bedienungsanleitung Seite 113

5.12.1 Set burst signal
Firstly, set the shape, frequency, amplitude and offset of burst signal. The waveform generator can
produce a burst using the above mentioned most waveforms except of some according to setting
value of burst period, bust counting and start phase.
5.12.2 Burst Mode
You can use burst in one of two modes by pressing 〖Mode Trig/Gat〗softkey to select. If 'Triggered'
is selected, the waveform generator outputs a waveform with a specified number of cycles (burst
count) each time a trigger is received. After the specified number of cycles have been output, the
waveform generator stops and waits for the next trigger. You can configure the waveform generator
to use an internal trigger to initiate the burst or you can provide an external trigger, applying a trigger
signal to the rear-panel Trig In connector. If Gated is selected, the output waveform is either "on" or
"off" based on the level of the external signal applied to the rear-panel Trig In connector. When the
gate signal is true, the waveform generator outputs a continuous waveform. When the gate signal
goes false, the current waveform cycle is completed and then the waveform generator stops while
remaining at the voltage level corresponding to the starting burst phase of the selected waveform.
5.12.3 Burst Period
The burst period defines time from the start of one burst to the start of the next burst. Used in the
internal triggered burst mode only. To set the burst period, press 【Burst】 key and then the 〖Burst
Period〗 softkey. Then use the knob or numeric keypad to enter the period.
The burst period must be long enough to accommodate the setting counts, see below formula,
Burst Period > Burst Count/Frequency of Burst Signal
If the burst period is too short, the waveform generator will automatically adjust it to be allowed
minimum value.
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