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301/302 User Manual

Sequenced

Waveforms

The sequence generator is a very powerful tool that lets you link and

loop segments in any way you desire. As a simple example of a

sequenced waveform, look at Figures 1-1a through 1-1c. The

waveforms shown in these figures were placed in memory segments

1, 2 and 3, respectively. The sequence generator takes these three

waveforms links and loops them in a predefined order to generate the

waveform shown in Figure 1-1d.

The sequence circuit is useful for generating long waveforms with

repeated sections. The repeated waveform has to be programmed

once and the repeater loops on this segment as many times as

selected. When in sequenced mode, there is no loss of time between

linked or looped segments.

The Model 301/302 can store up to 16 different sequences, then use

these sequences in a macro sequence that can sequence all 16

sequences. The sequence generator, as well as, the macro sequence

generator is common to both channels.

Sequence tables must be loaded to the generator before sequenced

waveforms can be generated. The data for the sequence table is first

prepared on external platforms, then downloaded to the generator.

Figure 1-5 shows an example how to define a sequence using

WaveWiz.

Figure 1.1a , Segment 1 – Sin (x)/x Waveform

Getting Started

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Wavetek 39A Spezifikationen Seite 20