Agilent Technologies E8267D PSG, E8257D PSG manual Creating Waveform Segments

Basic Digital Operation

Using the Dual ARB Waveform Player

Creating Waveform Segments

There are two ways to provide waveform segments for use by the waveform sequencer. You can either download a waveform via the remote interface, or generate a waveform using one of the ARB modulation formats. For information on downloading waveforms via the remote interface, see the E8257D/67D PSG Signal Generators Programming Guide.

A waveform sequence is made up of segments but can also contain other sequences. Any number of segments, up to 32768, can be used to create a sequence. This limit count is determined by the number of segments in the waveform sequence. Segments and sequences can be repeated within a waveform sequence and the total of all segments and repeated segments cannot exceed the limit count. The following diagram shows a waveform sequence made up of two sequences and three segments. In this example the segment count is eleven.

Figure 3-9 Waveform Sequence Diagram

The following procedure describes how to create two waveform segments, then name and store them in ARB memory. After you name and store the two waveform segments in ARB memory, you can use them to build a waveform sequence, as described on page 85.

1. Generate the first waveform:

a. Press Preset > Mode > Two Tone > Alignment Left Cent Right to Right.

b.Press Two Tone Off On to On, then to Off.

You turn off the Two Tone mode after generation because a waveform cannot be renamed as a segment while it is in use.

This generates a two tone waveform with the tone on the right placed at the carrier frequency. During waveform generation, the T-TONEand I/Q annunciators activate. The waveform is stored in volatile memory, with the default file name AUTOGEN_WAVEFORM.

NOTE Because there can be only one AUTOGEN_WAVEFORM waveform in memory at any given time, you must rename this file to clear the way for a second waveform.

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