The Keysight N8975B is a high-performance noise figure analyzer designed for accurate and repeatable noise figure measurements across a broad frequency range. It operates from 10 MHz to 26.5 GHz, offering a comprehensive solution in a single instrument. The N8975B features a multi-touch interface that allows for intuitive operation with gestures like stretch, pinch, and drag, streamlining access to most menus without screen changes. This analyzer is ideal for characterizing low-noise amplifiers (LNAs), transceivers, and other RF components, enhancing design and testing processes.
### Technical Specifications
* **Frequency Range:** 10 MHz to 26.5 GHz
* **Measurement Capabilities:**
* Noise Figure: 0 to 40 dB
* Noise Factor
* Y-Factor
* Gain: -20 to +40 dB
* Gain Measurements: Simultaneous with noise figure
* Phot, Pcold, and Teffective
* **Accuracy:**
* Noise Figure Measurement Accuracy: ±0.5 dB
* Gain Measurement Accuracy: ±0.2 dB
* Instrument Uncertainty: ±0.02 dB (using a 4-6 dB ENR Noise Source)
* Gain Uncertainty: ±0.15 dB
* **Speed:**
* Measurement Speed: < 5 seconds per point
* Measurement Speed: 18.3 ms/measurement
* **Bandwidth:** 8 MHz (Supplemental information notes 9 kHz to 10 MHz and 10 MHz to 3.6 GHz with specific amplitude accuracy figures)
* **Input Impedance:** 50 ohms
* **Input Power Range:** -80 to +10 dBm
* **Input Connector:** N-type (f)### Electrical Specifications* Not explicitly detailed in provided search results, beyond measurement accuracy and uncertainty specifications.### Interfaces and Connectivity* **Multi-touch Interface:** Features stretch, pinch, and drag gestures for intuitive control.
* **Standard Built-in Options:** Includes P26 (26.5 GHz internal Preamplifier), PFR (precision frequency reference), FSA (fine step attenuator), NFE (noise floor extensions), and B25 (25 MHz analysis bandwidth).
* **External USB Preamplifier:** U7227C 100 MHz to 26.5 GHz External USB Preamplifier is included.
* **Noise Source Compatibility:** Compatible with SNS series noise sources (e.g., N4000A, N4001A, N4002A). ENR data from SNS and USB preamplifier automatically downloads into the N8975B.
* **Other Interfaces:** USB, LAN, GPIB.
* **Extensibility:** Can be extended up to 110 GHz with special block downconverters.
* **Spectrum Analyzer and IQ Analyzer Modes:** Includes basic modes for broader signal analysis beyond noise figure measurements.### Physical Characteristics* **Dimensions:** 385 mm x 177 mm x 477 mm
* **Weight:** 14 kg
* **Display:** 7-inch color touchscreen### Compatibility* **SNS Series Noise Sources:** N4000A, N4001A, N4002A
* **USB Preamplifiers:** U7227C
* **Block Downconverters:** For extending frequency range up to 110 GHz.
* **Software:** Compatible with Keysight's VSA software for signal analysis. PathWave Calibration Advisor (PCA) for calibration interval tracking.### Operational Features* **Internal Calibration Feature:** Streamlines noise source calibrations for Y-Factor measurements, allowing combined calibrations for up to 12 DUT setups in a single step. Internal calibration can be used without requiring a user calibration.
* **Noise Figure Uncertainty Calculator:** Built-in calculator can pre-populate data from SNS noise source, USB preamplifier, and instrument parameters (noise figure, gain, match) to determine uncertainty.
* **Simultaneous Measurements:** Default settings offer simultaneous noise figure and gain measurements. Multiple measurements (Noise Figure, Noise Factor, Y-Factor, Gain, Phot, Pcold, Teffective) can be viewed simultaneously in tabular form.
Why Choose Aumictech for Agilent/Keysight N8975B?
At Aumictech, we specialize in supplying high-end RF and microwave test equipment. Whether you need precise noise figure characterization, reliable gain measurements, or comprehensive RF component analysis, our team ensures the Agilent/Keysight N8975B delivers maximum performance for your application.
