Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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SNS Series Noise Source 10 MHz to 26.5 GHz (ENR 15 dB)
N4002A
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The SNS series N4002A noise source was designed to measure DUT noise figures reliably and accurately up to 30 dB from 10 MHz to 26.5 GHz.
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Product
Noise Source, 1 GHz up to 50 GHz
346CK01
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The Keysight 346CK01 is the ideal companion to Keysight´s noise figure solutions when working on high frequency applications. Since it is broadband (1 GHz to 50 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source reduces a major source of measurement uncertainty, which are reflections of the test signals. This is a coaxial noise source with a 2.4 mm coaxial connector. ENR typically 20 dB at 1 GHz, decreasing to typically 7 dB at 50 GHz.
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Product
SNS Series Noise Source 10 MHz to 18 GHz (ENR 15 dB)
N4001A
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The SNS series N4001A noise source is ideal for general purpose use with a low reflection coefficent and a nominal ENR of 15 dB from 10 MHz to 18 GHz.
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Millimeter-Wave Noise Source, R-band, 26.5 to 40 GHz
R347B
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The Keysight R347B noise source covers a 26.5 to 40 GHz frequency range. This waveguide noise source allows you to make accurate and convenient noise figure measurements on millimeter-wave devices. The R347B provides highly precise broadband noise at the input of the system or component under test. The noise figure meter then processes the ON/OFF ratio of noise power present in the system IF, and provides an accurate reading of noise figure and gain. The R347B noise source has remarkable ENR stability over time, which allows longer recalibration cycles and more accurate noise figure measurements.
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Product
Noise Figure Analyzer, Multi-touch, 10 MHz to 40 GHz
N8976B
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The N8976B high performance noise figure analyzer is designed to make fast, accurate and repeatable noise figure measurements. When paired with an SNS Series noise source and U7227 Series USB preamplifier the ENR data from the SNS and USB preamplifier data automatically downloads into the N8976B.
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Product
Noise Source, 10 MHz to 18 GHz, nominal ENR 6 dB
346A
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The Keysight 346A noise source is the ideal companion to Keysight's noise figure solutions. Since it is broadband (10 MHz to 18 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source reduces a major source of measurement uncertainty; reflections of test signals. The very small change in reflection coefficient (<0.01) from ON to OFF is designed especially for accurate characterization of input-impedance-sensitive devices (like GaAsFETs and many UHF amplifiers).
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Product
Noise Figure Analyzer, Multi-touch, 10 MHz to 7 GHz
N8974B
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The N8974B high performance noise figure analyzer is designed to make fast, accurate and repeatable noise figure measurements. When paired with an SNS Series noise source and U7227 Series USB preamplifier the ENR data from the SNS and USB preamplifier data automatically downloads into the N8974B.
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Product
Noise Generator
NG 600
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The NG 500 noise generator is an external module with dual power supply for different applications: to calibrate filters, switchboards, to the distance of a fault caused by the impedance mismatch, to test the cable efficiency.
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Noise Dosimeter
doseBadge5
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The doseBadge5 is the next generation doseBadge noise dosimeter from Cirrus. It provides all of the unique features of the original doseBadge such as no controls, cables or displays with a range of new functions and features allowing it to be used for compliance with any occupational noise standard. Wireless communication to the dBLink App (for Android and iOS) or the doseBadge5 Wand allows the instrument to be configured and controlled without user intervention. Measurements can be scheduled to start, pause and stop automatically with the timer functions allowing the doseBadge5 to be deployed quickly and easily.
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Low Noise Amplifiers
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Analog Devices RF amplifiers are designed utilizing the company’s leading amplifier and RF IC expertise. Our extensive family of single-ended input/output, fixed-gain amplifiers can be used from dc to microwave and include low noise amplifiers, gain blocks, intermediate frequency amplifiers, driver amplifiers, and differential amplifiers. These devices offer high linearity, low noise figures, and various fixed-gain options, as well as low power consumption; they are all fully specified over frequency, temperature, and supply voltage for use in a variety of applications.
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Low Noise Amplifiers
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Electronic component that amplifies a very low-power signal without significantly degrading its signal-to-noise ratio (SNR).
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Noise Figure Analyzers
NFA Series
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Optimize for noise figure using the NFA Series of high performance noise figure analyzers, which are designed to make fast, accurate, repeatable measurements. Key features include the simple user interface, graphical display, data storage, selectable bandwidths and on screen limit lines for pass/fail testing. With the NFA Series reliable measurements up to 40 GHz are now available in a single instrument.
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Low Noise Current Preamplifier
SR570
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Stanford Research Systems, Inc.
The SR570 is a low-noise current preamplifier capable of current gains as large as 1 pA/V. High gain and bandwidth, low noise, and many convenient features make the SR570 ideal for a variety of photonic, low temperature and other measurements.
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Low Noise Amplifiers
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LNA amplifier PE15A1000 is rated at 13 Volts DC maximum and 200 mA. Our low noise radio frequency LNA amp is part of over 40,000 RF, microwave and millimeter wave components available from Pasternack. This coaxial millimeter wave low noise amplifier can ship worldwide the same day of the purchase as with our other available RF parts.
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Product
Occupational Noise Measurements
doseBadge
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The doseBadge is the original wireless personal noise dosimeter. It is the ideal tool to carry out occupational and industrial hygiene noise measurements and provides a unique solution for these applications.
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Noise Test
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Noise testing is conducted to determine if materials can withstand external noises generated by various sources. It also includes air-borne and structure-borne noise measurements.
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Noise Sources
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The Keysight 346, 347 and SNS Series of noise sources work in conjunction with the NFA Series noise-figure analyzers to make noise-figure measurements from 10 MHz to 50 GHz.
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Noise Generator
UFX7000
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The UFX7000A Series instruments provide Broadband Gaussian noise with superior flatness. The output power can be attenuated up to 127 dB in 1 dB steps, and several connector types are available.
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Product
Low Phase Noise Frequency Synthesizer
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Corech’s low phase noise frequency synthesizer series generates precise and stable frequency signals across a wide frequency range, available in SPI serial interface. These cost competitive, rugged and compact module are the ideal choice for RF & Microwave systems such as communication systems, test and measurement equipment, radar systems etc.
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Product
Noise Activated Warning Sign
SoundSign
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The SoundSign Noise Activated Warning Sign is a visible, effective way to warn workers and staff of high noise levels.
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Product
Low Noise Dual Band VCO
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This custom oscillator subassembly consists of two low noise oscillators covering 1.5 to 2.5 GHz, a power combiner, a standard Teledyne RF & Microwave amplifier, and a lowpass microstrip filter. Teledyne RF & Microwave designed both oscillators for low phase noise and linear tuning. The output frequency bands are switched using standard TTL control.
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Low Noise Preamplifier
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The UPL-3001 preamplifier is a high performance solution for the low-noise amplification of ultrasonic signals. Designed for signals ranging from 0.5 to 300 MHz, the small and lightweight, rugged unit is perfect for remote applications. This is ideal for P&C, TT, AUT or TOFD inspection.
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Noise Figure Meters
H5M Series
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*Frequency range from 10 MHz to 4/20 GHz*Noise Ratio and Gain measurements*Frequency converter measurements with a fixed or external heterodines*Built-in thermostatic YIG preselector*High measurement speed*Extend the NFA solution up to 50 GHz with special downconverter unit*SCPI Language Compatibility
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Acoustical Random "Noise" Generator
ARNG-2000
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Eliminate and Defeat otherwise undetectable distance surveillance devices such as Microwave, Laser and Boom Microphones
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NBS-Series Cryogenic Primary Noise Standards
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The NBS-Series provide the ultimate accuracy when measuring extremely low noise figures (noise temperatures).
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Noise Meters
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Here you will find a full range with an industrial standard noise meter / sound meter to suit every requirement. With the portable noise meter you can carry out measurements quickly to gain control of a situation or to set the sound meter to take timed measurements. The noise meter is important for all industries, especially by using it as a mobile noise meter which is able to assess office stress levels or street noise levels. Often problems arise from noisy neighbors or if bars and restaurants are in residential areas and produce noise levels after 10 pm in excess of what local laws permit. A noise meter / sound meter will help here.We can assess which noise meter or sound meter you require in relation to the issue you have and the relating laws (requirements regarding a sound meter and a sound meter’s usage vary depending on the country). We also have noise meter microphone extension cords, tripods, sound meter calibrators and calibration certificates for most noise meter models.
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PC USB Noise & Vibration Measurement Systems
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IEPE Sensor Based Measurement Systems, Charge Amplifier Based Measurement Systems, All-in-One Integrated Vibration Measurement Systems
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Noise Dosimeters & Sound Level Meters
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There are multiple methods at your disposable to mitigate the hearing loss risk, including engineering controls, administrative controls, and implementing a hearing protection program. But in order for the program to be effective and efficient, consistent monitoring of personal and ambient noise exposures is necessary to log data and determine appropriate corrective action.
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Product
Phase Noise Tester 5MHz to 40GHz
Model 7340
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Berkeley Nucleonics Corporation
Broad Frequency Range in a single compact instrument from 5MHz to 40GHz. Measurement offsets from .01Hz to 100MHz. Absolute Phase Noise - High Drift mode (ability to measure modulations, high drifting or unstable DUTs, etc.). AM (Absolute Amplitude Noise) measurements. Pulsed Measurement Capabilities. Transient Mode: measure WB Frequency, NB Frequency, NB Phase, NB Power (WB/NB being Wide Band and Narrow Band). Dual channel low-noise integrated power supplies.
