12 Troubleshooting

This chapter provides basic troubleshooting information for Agilent PSG signal generators. If you do not find a solution here, refer to the E8257D/67D PSG Signal Generators Service Guide.

NOTE If the signal generator displays an error, always read the error message text by pressing Utility > Error Info.

•“RF Output Power Problems” on page 243

•“No Modulation at the RF Output” on page 247

•“Sweep Problems” on page 248

•“Data Storage Problems” on page 249

•“Cannot Turn Off Help Mode” on page 250

•“Signal Generator Locks Up” on page 250

•“Error Messages” on page 251

•“Contacting Agilent Sales and Service Offices” on page 253

•“Returning a Signal Generator to Agilent Technologies” on page 253

RF Output Power Problems

Check the RF ON/OFF annunciator on the display. If it reads RF OFF, press RF On/Off to toggle the RF output on.

No RF Output Power when Playing a Waveform File

Preset the signal generator, then replay the waveform file.

If a header file is not specified for a waveform, the signal generator uses a default header file with unspecified settings. If you play a waveform file that has unspecified signal generator settings (settings not saved to the file header, see page 86), the signal generator will use the header file settings from the previously played file. If the previous header file had a marker routed to RF blanking, the RF output power will be blanked. Preset the signal generator to return the RF blanking marker function to its default state—off). Refer to the E8257D/67D PSG Signal Generators Key Reference, Marker section, for more information.

NOTE If the default marker file is used, ensure that the Pulse/RF Blank softkey is set to None. Markers may have been set to Pulse/RF Blank by a previous file header.

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Agilent Technologies E8257D PSG, E8267D PSG manual RF Output Power Problems, No RF Output Power when Playing a Waveform File
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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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