Agilent Technologies E8257D PSG, E8267D PSG manual

Analog Modulation

Configuring the LF Output (Option UNT)

With Option UNT, the signal generator has a low frequency (LF) output (described on page 10). The LF output’s source can be switched between Internal 1 Monitor, Internal 2 Monitor, Function Generator 1, or Function Generator 2.

Using Internal 1 Monitor or Internal 2 Monitor as the LF output source, the LF output provides a replica of the signal from the internal source that is being used to modulate the RF output. The specific modulation parameters for this signal are configured through the AM, FM, or FM menus.

Using Function Generator 1 or Function Generator 2 as the LF output source, the function generator section of the internal modulation source drives the LF output directly. Frequency and waveform are configured from the LF output menu, not through the AM, FM, or FM menus. You can select the waveform shape from the following choices:

Sine	sine wave with adjustable amplitude and frequency
Dual- Sine	dual- sine waves with individually adjustable frequencies and a percent- of-
	peak- amplitude setting for the second tone (available from function generator 1
	only)
Swept- Sine	a swept- sine wave with adjustable start and stop frequencies, sweep rate, and
	sweep trigger settings (available from function generator 1 only)
Triangle	triangle wave with adjustable amplitude and frequency
Ramp	ramp with adjustable amplitude and frequency
Square	square wave with adjustable amplitude and frequency
Noise	noise with adjustable amplitude generated as a peak- to- peak value (RMS value is
	approximately 80% of the displayed value)
DC	direct current with adjustable amplitude

NOTE The LF Out Off On softkey controls the operating state of the LF output. However, when the LF output source selection is Internal Monitor, you have three ways of controlling the output. You can use the modulation source (AM, FM, or FM) on/off key, the LF output on/off key, or the Mod On/Off softkey.

The RF On/Off hardkey does not apply to the LF OUTPUT connector.

To Configure the LF Output with an Internal Modulation Source

In this example, the internal FM modulation is the LF output source.

NOTE Internal modulation (Internal Monitor) is the default LF output source.

Configuring the Internal Modulation as the LF Output Source

1.Press Preset.

2.Press the FM/ΦM hardkey.

3.Press FM Dev > 75 > kHz.

4.Press FM Rate > 10 > kHz.

Chapter 5

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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.

Agilent Technologies E8257D PSG, E8267D PSG manual Configuring the LF Output Option UNT

Models: E8267D PSG E8257D PSG