| Manufacturer | Keysight-Agilent |
|---|---|
| Model | E4991A |
| Year | |
| Location | USA
|
The Keysight E4991A is a specialized RF impedance/material analyzer designed for precise impedance measurements and advanced material analysis. It operates over a frequency range from 100 kHz to 3 GHz, making it suitable for research and development applications involving components and circuits evaluated up to 3 GHz. This instrument employs an RF-IV measurement technique rather than the traditional reflection method, allowing for more accurate impedance readings across a wide impedance range. It boasts a basic impedance accuracy of ±0.8%, and its high Q accuracy supports detailed analysis of low-loss components. The internal synthesizer enables frequency sweeping from 1 MHz to 3 GHz with fine resolution down to 1 mHz, facilitating comprehensive frequency analysis.
The analyzer features a user interface with a display screen that presents graphical data and measurement results, complemented by a control panel equipped with multiple buttons and a large rotary knob for intuitive operation. Additionally, there is a small accessory or probe attached to the right side of the instrument, which may be used for sample connection or measurement purposes. The instrument appears clean and in good physical condition, suggesting it has been well maintained.
Various optional features are available for the E4991A, including DC bias capability, material measurement firmware, a temperature characteristic test kit, probe station connection kit, rackmount and handle kits, and high stability or standard frequency references. These options enhance the instrument's versatility and adaptability to specific testing requirements. Overall, the Keysight E4991A is a robust and precise tool for professionals engaged in material and component impedance analysis within the RF spectrum.
The following description has been generated using artificial intelligence based on the product information available. It is provided for guidance only and may not reflect all specifications or conditions. Please contact us if you need precise or confirmed details.
Base Frequency: 100 KHz Max Frequency: 3 GHz
Keysight E4991A Impedance Material Analyzer
The Keysight E4991A RF impedance/material analyzer offers ultimate impedance measurement performance and powerful built in analysis function. It will provide innovations in R&D of components and circuit designers who evaluate components in the range of 3 GHz. The E4991A uses an RF-IV technique, as opposed to the reflection measurement technique, for more accurate impedance measurement over wide impedance range. Basic impedance accuracy is +/-0.8%. High Q accuracy enables low-loss component analysis. The internal synthesizer sweeps frequency from 1 MHz to 3 GHz with 1 mHz resolution.
OPTIONS
001 - DC Bias
002 - Add Material Measurement Firmware
007 - Temperature Characteristic Test Kit
010 - Probe station connection kit
1CM - Rackmount Kit
1CN - Handle Kit
1CP - Rackmount and handle kit
1D5 - High stability frequency reference
800 - Standard frequency reference
Please note that this description may have been translated automatically. Contact us for further information. The information of this classified ad are only indicative. We recommend to check the details with the seller before a purchase
| Client type | Machinery dealer |
| Active since | 2007 |
| Offers online | 34 |
| Last activity | June 11, 2026 |
Base Frequency: 100 KHz Max Frequency: 3 GHz
Keysight E4991A Impedance Material Analyzer
The Keysight E4991A RF impedance/material analyzer offers ultimate impedance measurement performance and powerful built in analysis function. It will provide innovations in R&D of components and circuit designers who evaluate components in the range of 3 GHz. The E4991A uses an RF-IV technique, as opposed to the reflection measurement technique, for more accurate impedance measurement over wide impedance range. Basic impedance accuracy is +/-0.8%. High Q accuracy enables low-loss component analysis. The internal synthesizer sweeps frequency from 1 MHz to 3 GHz with 1 mHz resolution.
OPTIONS
001 - DC Bias
002 - Add Material Measurement Firmware
007 - Temperature Characteristic Test Kit
010 - Probe station connection kit
1CM - Rackmount Kit
1CN - Handle Kit
1CP - Rackmount and handle kit
1D5 - High stability frequency reference
800 - Standard frequency reference
Please note that this description may have been translated automatically. Contact us for further information. The information of this classified ad are only indicative. We recommend to check the details with the seller before a purchase
The Keysight E4991A is a specialized RF impedance/material analyzer designed for precise impedance measurements and advanced material analysis. It operates over a frequency range from 100 kHz to 3 GHz, making it suitable for research and development applications involving components and circuits evaluated up to 3 GHz. This instrument employs an RF-IV measurement technique rather than the traditional reflection method, allowing for more accurate impedance readings across a wide impedance range. It boasts a basic impedance accuracy of ±0.8%, and its high Q accuracy supports detailed analysis of low-loss components. The internal synthesizer enables frequency sweeping from 1 MHz to 3 GHz with fine resolution down to 1 mHz, facilitating comprehensive frequency analysis.
The analyzer features a user interface with a display screen that presents graphical data and measurement results, complemented by a control panel equipped with multiple buttons and a large rotary knob for intuitive operation. Additionally, there is a small accessory or probe attached to the right side of the instrument, which may be used for sample connection or measurement purposes. The instrument appears clean and in good physical condition, suggesting it has been well maintained.
Various optional features are available for the E4991A, including DC bias capability, material measurement firmware, a temperature characteristic test kit, probe station connection kit, rackmount and handle kits, and high stability or standard frequency references. These options enhance the instrument's versatility and adaptability to specific testing requirements. Overall, the Keysight E4991A is a robust and precise tool for professionals engaged in material and component impedance analysis within the RF spectrum.
The following description has been generated using artificial intelligence based on the product information available. It is provided for guidance only and may not reflect all specifications or conditions. Please contact us if you need precise or confirmed details.
| Client type | Machinery dealer |
| Active since | 2007 |
| Offers online | 34 |
| Last activity | June 11, 2026 |
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