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Noise Figure Measurements & Solutions

If you need to make noise figure measurements, you’ve come to the right place to get the tools and technical support you need. Whether it is an instrument, accessories, or literature, Keysight has the right solutions to help you make the following measurements more accurately:

  • Noise figure/factor
  • Gain
  • Effective temperature
  • Y-factor
  • Hot/cold power density

To better determine how Keysight can meet your noise figure measurement needs today, use our Noise Figure Selection Guide and watch our video on making noise figure measurements:

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Fundamentals of RF and Microwave Noise Figure Measurements - Application Note 
This 32-page, black-and-white application note providesinformation on RF and Microwave noise figure measurementts. Topics include noise figure and temperature, noise characteristics of two-port networks, and the measurement of noise figure.

Application Note 2017-09-06

Noise Figure Measurement Accuracy - The Y-Factor Method - Application Note 
Specific to instruments that use the Y-factor method for noise figure measurements, this app note discusses measurement basics, avoidable errors, loss and temperature corrections, and uncertainties.

Application Note 2017-07-13

Signal Analyzers: Keysight EXA vs. Rohde & Schwarz FSV - Competitive Comparison 
This comparison demonstrates the Keysight EXA signal analyzer's superior performance in making sensitivity and noise figure measurements, as compared to the R&S FSV.

Competitive Comparison 2016-05-17

PDF PDF 768 KB
Noise Figure Uncertainty Calculator 
The noise figure uncertainty calculator has been created to aid your design work, from components through to systems, helping you meet the continued demand for higher system performance.

Analysis Tool 2015-05-29

 
High-Accuracy Noise Figure Measurements Using the PNA-X Series Network Analyzer – App Note 1408-20 
This application note discusses the unique challenges involved in minimizing noise figure.

Application Note 2013-01-31

346A/B/C Noise Sources: 10 MHz to 26.5 GHz 
The attached document provides technical data for the Keysight 346A, 346B, and 346C Noise Sources ranging from 10 MHz to 26.5 GHz.

Application Note 2000-12-01

PDF PDF 500 KB
Noise Power Ratio Measurements Using E2507B/E2508AMulti-format Communications Signal Simulator 
The NPR measurement requires a stimulus source to generate conditioned noise and a measurement receiver to analyze the changes in the noise after it passes through the device under test. This Product Note shows how the E2507B or E2508A Multi-format Communications Signal Simulator...

Application Note 2000-08-01

PDF PDF 384 KB
Applications and Operations of the 8970A Noise Figure Meter (PN8970A-1) 
Part Number: 08970-99000 (Nov81). The 8970A is a discontinued product; this product note is provided for information only.

Application Note 1981-11-01

PDF PDF 7.65 MB
Spectrum Analysis... Signal Enhancement (AN 150-7) 
Part Number: 8554-8447. Application Note 150-7 (Jun75)

Application Note 1975-06-01

PDF PDF 8.84 MB
Spectrum Analysis: Noise Measurements (AN 150-4) 
Application Note 150-4

Application Note 1974-04-01

PDF PDF 10.46 MB