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HIGHLIGHTS

The SNS series N4000A is a 10 MHz to 18 GHz noise source with nominal ENR 6 dB. The N4000A noise source is designed for accurately measuring devices with low noise figure, or devices whose gain is especially sensitive to small changes in source impedance. DUT's with noise figure up to 20 dB can be accurately and reliably measured with this device. The N4000A noise sources has a choice of connectors, with an APC 3.5(mm) connector as standard.

  • Electronic storage of Excess Noise Ratio (ENR) calibration data decreases the opportunity for user error
  • Automatic download of ENR data to the NFA speeds overall set-up time
  • Temperature compensation improves measurement accuracy leading to tighter specification of device performance
  • 3.5mm connector ships standard, optional Type-N connector is available as Option 001
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Key Specifications

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Maximum Frequency
18 GHz
Maximum Frequency
18 GHz
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ENR Range:
4.5 to 6.5 dB
ENR Automatic Download:
Yes
Excess Noise Ratio (ENR):
4.6-6.5 dB
Frequency Range:
10 MHz to 18 GHz
Maximum Frequency:
18 GHz
Minimum Frequency:
10 MHz
Minimum Frequency Range:
10 MHz
Temperature Compensation:
Yes
Type:
Smart Noise Source (SNS Series)
Works with:
NFA, ESA-E Series, X-Series (PXA, MXA, EXA, CXA)
N4000A SNS Series Noise Source

Interested in a N4000A?

Extend the Capabilities for your SNS Series Noise Source 10 MHz to 18 GHz (ENR 6 dB)

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Featured Resources

Technical Overviews 2020.04.02

SNS Series Noise Sources

SNS Series Noise Sources

SNS Series of noise sources work in conjunction with NFA Series noise figure analyzers and X-Series signal analyzers.

2020.04.02

Application Notes 2019.09.30

Fundamentals of RF and Microwave Noise Figure Measurements

Fundamentals of RF and Microwave Noise Figure Measurements

Explore information on RF and Microwave noise figure measurements, starting from the concept of noise figure and noise temperature, describing the noise characteristics of two-ports networks, and highlighting the different methods used to measure noise figure, such as Y-Factor and the Direct Noise measurement method.

2019.09.30

Application Notes 2021.01.24

Noise Figure Measurement Accuracy: The Y-Factor Method

Noise Figure Measurement Accuracy: The Y-Factor Method

This app note discusses the fundamentals of Y-factor noise figure measurement and how to avoid noise figure mistakes.

2021.01.24

Application Notes 2019.09.24

Noise Figure Measurements: 10 Hints

Noise Figure Measurements: 10 Hints

Noise figure is often the key to characterizing a receiver and to detect weak incoming signals. Learn to minimize uncertainties in your noise figure measurements.

2019.09.24

View All Resources

View All Resources

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