Keysight E8257D PSG Analogue Signal Generator Description
The Keysight E8257D is a fully synthesised signal generator that provides high output power and low phase noise, as well as powerful modulation capabilities. Unless otherwise noted, the instrument achieves these specifications over a temperature range of 0 to 55 °C and after a 45-minute warm-up. Supplementary characteristics (labelled as typical, nominal, or measured) provide additional (non-guaranteed) information about the instrument at 25 °C and may be helpful in product applications.
The Keysight E8257D covers a wide frequency range from 230 kHz to 47 GHz and operates over a temperature range of 0 to 55 °C, requiring a 45-minute warm-up time to meet its specifications.
The E8257D also has powerful modulation capabilities for a variety of modulation operations. It is typically equipped with 14 MB of flash memory for easy data storage and management. The device is widely used in electronic measurements, communications, radar, sound and image processing.
Metrology-grade frequency and level accuracy and excellent distortion and spurious characteristics to meet very demanding test requirements
Measurements can be made over a wide frequency range: 13, 20, 31.8, 40, 50 and 67 GHz models are available (expandable to 1.1 THz with a spread spectrum)
Optionally generates up to 1 W (+30 dBm) of output power, enabling testing of high-power devices and compensating for power loss in the test system
Very low phase noise: -91 dBc/Hz at 100 Hz frequency offset, -126 dBc/Hz at 10 kHz frequency offset (10 GHz) for Doppler radar, ADC, and receiver blocking testing needs.
Characterise devices and circuits by adding AM, FM, PM and pulse modulation to the signal.
How is the E8257D's ramp sweep capability achieved and what are the advantages over conventional modulation?
The E8257D's ramp-sweep capability is achieved through its full-synthesis signal generator. This device offers high output power, low phase noise and optional ramp sweep capability. Specifically, Keysight has upgraded the PSG analogue signal generator with the addition of a ramp-sweep capability, enabling it to provide continuous sweep measurements and fully automated measurements of narrow pulses (10ns) from 500MHz using the Keysight 8757D scalar network analyser.
Ramp sweep offers significant advantages over conventional modulation. Firstly, it provides a more continuous and smooth frequency change, which is important in application scenarios where precise control of the frequency change is required. Second, ramp sweep reduces interference during testing because it avoids the effects of frequency jumps. In addition, ramp sweep improves measurement stability and repeatability because the frequency changes are smoother and more continuous.
What specific RF and microwave radar test application scenarios is the E8257D suitable for?
The E8257D is suitable for a variety of RF and microwave radar test applications. Manufactured by Keysight Technologies in the USA, this device is an advanced microwave signal generator. It is capable of providing stable, reliable and accurate microwave signals, and is therefore widely used in the fields of telecommunications, broadcasting, radar, satellite communications, wireless communications, electronics manufacturing, and so on. In addition, the E8257D is particularly suitable for testing advanced RF and microwave radar, communication and control systems. This demonstrates that the E8257D is not only suitable for basic communications and broadcasting, but also for more specialised RF and microwave radar testing needs, including, but not limited to, testing and upgrading of communications systems and customisation of RF and microwave test application software.
The Keysight E8257D is a fully synthesised signal generator that provides high output power and low phase noise, as well as powerful modulation capabilities. Unless otherwise noted, the instrument achieves these specifications over a temperature range of 0 to 55 °C and after a 45-minute warm-up. Supplementary characteristics (labelled as typical, nominal, or measured) provide additional (non-guaranteed) information about the instrument at 25 °C and may be helpful in product applications.
The Keysight E8257D covers a wide frequency range from 230 kHz to 47 GHz and operates over a temperature range of 0 to 55 °C, requiring a 45-minute warm-up time to meet its specifications.
The E8257D also has powerful modulation capabilities for a variety of modulation operations. It is typically equipped with 14 MB of flash memory for easy data storage and management. The device is widely used in electronic measurements, communications, radar, sound and image processing.
Metrology-grade frequency and level accuracy and excellent distortion and spurious characteristics to meet very demanding test requirements
Measurements can be made over a wide frequency range: 13, 20, 31.8, 40, 50 and 67 GHz models are available (expandable to 1.1 THz with a spread spectrum)
Optionally generates up to 1 W (+30 dBm) of output power, enabling testing of high-power devices and compensating for power loss in the test system
Very low phase noise: -91 dBc/Hz at 100 Hz frequency offset, -126 dBc/Hz at 10 kHz frequency offset (10 GHz) for Doppler radar, ADC, and receiver blocking testing needs.
Characterise devices and circuits by adding AM, FM, PM and pulse modulation to the signal.
How is the E8257D's ramp sweep capability achieved and what are the advantages over conventional modulation?
The E8257D's ramp-sweep capability is achieved through its full-synthesis signal generator. This device offers high output power, low phase noise and optional ramp sweep capability. Specifically, Keysight has upgraded the PSG analogue signal generator with the addition of a ramp-sweep capability, enabling it to provide continuous sweep measurements and fully automated measurements of narrow pulses (10ns) from 500MHz using the Keysight 8757D scalar network analyser.
Ramp sweep offers significant advantages over conventional modulation. Firstly, it provides a more continuous and smooth frequency change, which is important in application scenarios where precise control of the frequency change is required. Second, ramp sweep reduces interference during testing because it avoids the effects of frequency jumps. In addition, ramp sweep improves measurement stability and repeatability because the frequency changes are smoother and more continuous.
What specific RF and microwave radar test application scenarios is the E8257D suitable for?
The E8257D is suitable for a variety of RF and microwave radar test applications. Manufactured by Keysight Technologies in the USA, this device is an advanced microwave signal generator. It is capable of providing stable, reliable and accurate microwave signals, and is therefore widely used in the fields of telecommunications, broadcasting, radar, satellite communications, wireless communications, electronics manufacturing, and so on. In addition, the E8257D is particularly suitable for testing advanced RF and microwave radar, communication and control systems. This demonstrates that the E8257D is not only suitable for basic communications and broadcasting, but also for more specialised RF and microwave radar testing needs, including, but not limited to, testing and upgrading of communications systems and customisation of RF and microwave test application software.