Noise Sources
create signal disturbances for the purpose of noise instrument calibration.
See Also: Pink Noise, Noise Generators
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Broadband Calibrated Noise Sources
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Fairview Microwave’s calibrated noise sources cover frequency bands from 10 KHz to 18 GHz. Their performance specifications include output ENR levels ranging from 15 dB to 30 dB and typical VSWR levels as low as 1.25:1. Depending on the model, calibrated frequency points are at 10 MHz, 100 MHz, 1000 MHz, 2000 MHz and 1 GHz steps. The temperature coefficient of these noise sources is < 0.01 dB/°C and noise output variation is < 0.1 dB/%V.
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Precision Calibrated Noise Sources
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ELVA-1's calibrated noise source ISSN-XX series delivers a uniform level of noise power spectral density within the whole waveguide frequency range. Sources are available in eight waveguide bands covering 26.4-170 GHz.
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Noise Sources
NC1126A
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This noise source by Noisecom produces white Gaussian noise up to +13 dBm. It contains a hermetically packaged noise diode that has been pre-selected for special performance characteristics. This module is ideal for many different applications including CATV, Secure communications, Jamming systems, OC-192 Testing, EW & EC.
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High-Power Noise Sources
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These modules not only contain the noise diode circuitry, but also gain stages to boost the output power. While lower frequencies (under 2 GHz) are most common, Mercury produces powerful amplified noise modules up to 18 GHz. Noise modules are available in coaxial, surface mount and pin type construction. TTL control options are available.
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10 MHz to 55 GHz Noise Sources
CNS346 Series
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The Spanawave CNS346 Series is designed for precision noise figure measurement applications. The superior VSWR characteristics reduce multiple reflections of the test signals and significantly increase the measurement accuracy of most noise figure set-ups. The CNS346 Series noise sources have broadband coverage and extremely good temperature and voltage stability, for the finest noise figure meter-compatible laboratory standards. Outputs of 6, 15.5 and 22 dB ENR are available, allowing the units to accurately measure noise figures up to 20 ,30 and 36 dB respectively.
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Fullband Coaxial Noise Sources
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Our line of full-band noise sources are specially designed for easy integration into microwave systems. They feature rugged construction with excellent long-term stability. In addition to the RF output choices, there are also different packages available to meet a wide range of mechanical constraints. Typical applications include jamming, radar alignment, SNR testing and general lab use.
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Noise Sources
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This power amplifier ensures that you get the maximum sound pressure level out of the Norsonic range of speakers.
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Noise Sources
NC3208
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It offers a high ENR output AWGN noise over a wide frequency range. This Noisecom noise source has excellent stability with temperature and voltage for tough environments. It contains a hermetically packaged noise diode that has been pre-selected for special performance characteristics. This module is ideal for many different applications including radar warning receivers (RWR), built-in test equipment (BITE), military aircraft, and Wi-Fi.
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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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Broadband Coaxial Noise Sources
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Our integrated noise modules contain all the required biasing circuitry and only need a positive voltage to activate for an easy installation. Since they typically do not contain amplification, the raw noise output from the diode is seen at the output of the module resulting in a maximum ENR of approximately 35dB. Primary applications include system built-in test and laboratory use.
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USB Smart Noise Source, 10 MHz to 26.5 GHz, Nominal ENR 15 dB
U1831C
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The USB-powered U1831C provides broadband noise figure measurements from 10 MHz – 26.5 GHz with modular signal analyzer and benchtop X-Series signal analyzers.
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RF Reference Sources
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The 27 GHz 96270A and 4 GHz 96040A Low Phase Noise Reference Sources are designed specifically for RF calibration, featuring a calibration-oriented interface, precision signal level and attenuation, high signal purity and precision low distortion modulation. Both instruments simplify the process of RF calibration by reducing the amount of equipment and simplifying the calculations required.
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Handheld Broadband Noise Generator
NS-1
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The Model NS-1 is a handheld broadband white Gaussian noise source. It generates a wide, even, RF noise-signal. The NS-1 is popular for testing network components and aligning a building's coaxial cable network. The NS-1's noise-signal is also used to provide the RF source for measuring insertion loss of cable, splitters, taps and more.
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Noise Source, 10 MHz to 26.5 GHz, nominal ENR 15 dB
346C
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The Keysight 346C noise source is the ideal companion to Keysight's noise figure solutions. Since it is broadband (10 MHz to 26.5 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. Option K01 is a coaxial noise source and features coverage from 1 to 50 GHz with a 2.4 mm coaxial connector.
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Noise Source Family
346 Series
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This series of broadband noise sources has been designed to cover the majority of measurement applications with a range of frequencies, Excess Noise Ratio (ENR) and coaxial connector types.
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Speaker Component Checker
Cab Driver
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Whirlwind Music Distributors, Inc.
The CAB DRIVER is a test device for checking the operation of the speaker components within enclosures. A pink noise signal source is sent through pushbutton selectors to an assortment of speaker connectors, including Speakon NL8 and NL4, 1/4" TS and banana jacks. Speaker/ Polarity/ Impedance/ Pink Noise Generator
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Programmable Step Attenuator DC~50GHz, 0~115dB Att.
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The programmable step attenuator achieves step attenuation over a wide frequency band. It features high attenuation accuracy, excellent repeatability, low insertion loss, and long service life. Its primary applications include controlling the amplitude of signals entering systems, regulating output signal power in systems, and adjusting impedance matching between signal sources and loads. It is widely used in various broadband spectrum analyzers, broadband vector network analyzers, broadband synthesized signal sources, noise figure test sets, and diverse microwave automatic test systems.
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Power Sensor and SNS Noise Source Cable (1.5m / 5 feet)
11730A
Power Sensor
The Keysight 11730 series power sensor cables are used with the 8480 and E-series power sensors (except the E9320 family of peak and average sensors). These cables are designed to reduce RFI effects on low power readings with an improved shielding design in the cable itself. Cables may be ordered individually or in pairs in any combination desired for single and dual-channel measurements.
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Charger / Quick Charger / Adapter / LED Driver Test System
6010
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6010 Charger / Quick Charger / Adapter / LED Driver Test System is able to meet multi-types power products test requirements，and its multi-U.U.T test simultaneously capability can significantly enhance the production line throughput. It also possess multi-modular combination that includes low noise analog AC source with Triac to simulate output, four sets precision power meter, two or four sets ripple noise / timing measurement module, four sets OVP DC power supply, 3310F series & 3332F/3336F Electronic Load module and unique design 3340F series for LED power driver output test.
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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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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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Hi-Q Laser RIN Analyzer
OE4001
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The OEwaves’ HI-Q® OE4001 Optical Test Measurement System (TMS) offers a fully automated measurement of ultra-low RIN (Relative Intensity Noise) CW laser sources.
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Noise Figure Analyzer, Multi-touch, 10 MHz to 3.6 GHz
N8973B
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The N8973B 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 N8973B.
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"Extremely Random" Precision Noise Generator
Model 3025
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The Model 3025, "Extremely Random"TM Precision Noise Generator supplies White and Pink Noise, and a 1 kHz reference signal. Crystal controlled - the pseudo random circuitry provides a 6.5 Day pseudo-random cycle time, assuring a "Extremely Random"TM noise source.
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Noise Source, 10 MHz to 18 GHz, nominal ENR 15 dB
346B
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The Keysight 346B 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 346B's high ENR, low SWR, and variety of connectors make it a general-purpose noise source. Add special option H01 for high ENR (21 dB typical) to measure high noise figure devices, or option H42 for measuring Direct Broadcast Satellite (DBS) low noise block converters.
