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.

84

Chapter 3

Page 98
Image 98
Agilent Technologies E8267D PSG, E8257D PSG manual Creating Waveform Segments

E8267D PSG, E8257D PSG specifications

Agilent Technologies, a recognized leader in electronic measurement and communications solutions, offers a comprehensive range of signal generators, including the E8257D PSG (Pulsed Signal Generator) and E8267D PSG. These instruments are engineered to meet the demanding requirements of wireless communication, aerospace, defense, and various research applications.

The E8257D PSG is known for its versatility and reliability. It operates within a frequency range of 250 kHz to 40 GHz, making it suitable for a wide array of applications, from signal generation to vector modulation. With an output power capability of up to +30 dBm, it delivers high-quality signals with exceptional precision. Its low phase noise performance is especially critical for applications such as radar and communication system testing, where signal integrity is paramount.

One of the standout features of the E8257D is its advanced modulation capabilities, including analog and digital modulation schemes. This flexibility allows engineers to simulate real-world communications environments accurately. The PSG also features a built-in arbitrary waveform generator that enables users to create complex waveforms tailored to specific testing needs, providing a significant advantage in research and development.

On the other hand, the Agilent E8267D PSG is designed to cater to the needs of users requiring a combined signal generation and analysis solution. With the capability to generate signals from 250 kHz to 67 GHz, the E8267D is ideal for millimeter-wave applications, as well as testing next-generation wireless technologies.

This model includes features such as enhanced phase noise performance and faster switching speed, which are crucial for signal integrity in sophisticated networks. The instrument's intuitive user interface and powerful software integration facilitate effortless operation and automation, thereby improving workflow efficiency.

Both the E8257D and E8267D PSG instruments incorporate cutting-edge technologies such as low-noise microwave and RF components, as well as digital signal processing capabilities. They provide users with enhanced accuracy and reliability in their measurements.

In summary, Agilent Technologies' E8257D and E8267D PSG signal generators represent the pinnacle of precision in signal generation technology. With their extensive feature sets, advanced modulation capabilities, and robust performance specifications, these instruments are invaluable tools for engineers and researchers working across various high-tech industries.