Basic Digital Operation

Triggering Waveforms

3.Configure the carrier signal output:

•Set the desired frequency.

•Set the desired amplitude.

•Turn on the RF output.

4.Select a waveform for playback (sequence or segment):

a.Preset the signal generator.

b.Press Mode > Dual ARB > Select Waveform.

c.Highlight a waveform file (for this example, SINE_TEST_WFM).

d.Press Select Waveform.

5.Select the waveform trigger method:

a.Press Trigger > Gated.

b.Press Trigger > Trigger Setup and note that for the Gate Active Low High softkey, the default selection is High, which is the selection used in this example.

6.Select the trigger source and rear panel input:

a.For the Trigger Source softkey, the default selection is Ext, which is the selection used in this example (gated triggering requires an external trigger).

b.Press Trigger Source and note that for the Ext Source softkey, the default selection is Patt Trig In 1, which is the selection used in this example.

7.Generate the waveform: Press ARB Off On to On.

8.On the function generator, configure a TTL signal for the external gating trigger.

9.(Optional) Monitor the current waveform:

Configure the oscilloscope to display both the output of the signal generator, and the external triggering signal. You will see the waveform modulating the output during the gate inactive periods (low).

The following figure shows an example display.

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Chapter 3

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Agilent Technologies E8267D PSG, E8257D PSG manual Press Select Waveform, Press Trigger Gated
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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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