Waveform Marker Concepts

Basic Digital Operation

Using Waveform Markers

•“Using the RF Blanking Marker Function” on page 100

•“Setting Marker Polarity” on page 102

The signal generator’s ARB formats provide four waveform markers to mark specific points on a waveform segment. You can set each marker’s polarity and marker points (on a single sample point or over a range of sample points). Each marker can also perform ALC hold or RF Blanking and ALC hold.

Positive

Marker

File

Bit N

Set Marker	Marker
		Negative
On Off	Polarity

When the signal generator encounters an enabled marker (described on page 97), an auxiliary output signal is generated and routed to the rear panel event connector that corresponds to the marker number (N).

The EVENT 3 and 4 connectors are pins on the AUXILIARY I/O connector (connector locations are shown in Figure 1-3 on page 18).

EVENT N

Marker N

RF Blank Off On

Marker N

Blanks RF

when Marker

is Low

RF Blank Only: includes ALC Hold

Marker N

Holds ALC

when Marker

is Low

Marker N

ALC Hold Off On

Marker File Generation

Generating a waveform segment (see page 84) automatically creates a marker file that places a marker point on the first sample point of the segment for markers one and two.

Downloading a waveform file (as described in the E8257D/67D PSG Signal Generators Programming Guide) that does not have a marker file associated with it creates a marker file that does not place any marker points.

Marker Point Edit Requirements

Before you can modify a waveform segment’s marker points, the segment must reside in volatile memory (see “Loading Waveform Segments from Non- volatile Memory” on page 88).

In the dual ARB player, you can modify a waveform segment’s marker points without playing the waveform, or while playing the waveform in an ARB modulation format.

In an ARB modulation format, you must play the waveform before you can modify a segment’s marker points.

Chapter 3

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 Waveform Marker Concepts, Marker File Generation

Models: E8267D PSG E8257D PSG