Basic Digital Operation

Arbitrary (ARB) Waveform File Headers

Marker settings and routing functions (page 88)

—Polarity

—ALC hold

—RF blanking

•High crest mode (only in the dual ARB player)

•Modulator attenuation

•Modulator filter

•I/Q output filter (used when routing signals to the rear panel I/Q outputs)

•Other instrument optimization settings (for files generated by the PSG) that cannot be set by the user.

Creating a File Header for a Modulation Format Waveform

When you turn on a modulation format, the PSG generates a temporary waveform file (AUTOGEN_WAVEFORM), with a default file header. The default header has no signal generator settings saved to it.

This procedure, which is the same for all ARB formats, demonstrates how to create a file header for a Custom digital modulation format.

1.Preset the signal generator.

2.Turn on the Custom modulation format:

Press Mode > Custom > ARB Waveform Generator > Digital Modulation Off On to On

A default file header is created, and the temporary waveform file (AUTOGEN_WAVEFORM) plays. Figure 3- 1 shows the PSG’s display.

Figure 3-1

Custom Digital Modulation First-Level Softkey Menu

First-Level Softkey Menu

(Some ARB formats have a second page)

At this point, a default file header has been created, with default (unspecified) settings that do not reflect the current signal generator settings for the active modulation. To save the settings for

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Agilent Technologies E8257D PSG, E8267D PSG manual Creating a File Header for a Modulation Format Waveform
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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.
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