Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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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 Amplifiers
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RPG Low Noise Amplifiers are developed and manufactured using the most modern discrete components and thin film technologies, in order to cover the frequency range 50 to 350 GHz. With improved DC-supply and modern semiconductors these amplifiers not only deliver low noise performance but also broad operating bandwidth and gain flatness. These low-noise amplifiers are available as a standard product and on request as customized manufactured product.
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Product
Ultra-low Noise Phase Inverter - Buffer
WMA-IB-LN
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The WMA-IB-LN can be used to double the output voltage of two high voltage amplifiers by driving them in bridge mode, or as high impedance input buffer while maintaining precision and ultra-low noise. The WMA-IB-LN model has been designed specifically for the Falco Systems WMA-200 high voltage amplifier. Two WMA-200 amplifiers combined with one WMA-IB-LN provide unprecedented noise performance and output voltage range.
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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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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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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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Noise Source Family
347
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The R347B waveguide noise source cover the R-band (26.5 to 40 GHz frequency range), while the Q347B model cover the Q-band (33 to 50 GHz frequency range), allows you to make accurate noise figure measurements on millimeter-wave devices.
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Noise and Vibrations Meters
Ga113
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Noise e vibrations metersGa113category: Monitoring / Noise e vibrations metersbrand: CASTLEitem: Ga113 The Castle SONUS is a new range of pocket meters designed for ease of use with the power the cover the work you need, from Noise at Work measurements to Environmental monitoring. The SONUS sound level meters are split into a range of meters to suit specific needs.
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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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General Noise & Vibration
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NVGate, the software platform is the cornerstone for all measurement tasks. It hosts the suite of OROS software modules. Whatever the application and software module, it allows you working in a coherent and continuous environment.
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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.
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Noise-Activated Warning Signs
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Highly visible noise warning signs that tell you when to wear hearing protection and when it’s safe to take it off. Simple to install. Data logging options available.
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Noise Figure Measurements With Vector Correction
S96029B
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This software application enables high-accuracy noise figure and noise-power measurements of amplifiers. It utilizes Keysight’s unique vector-source-correction technique, which uses a source-impedance tuner to remove the effects of imperfect system-source match. This approach yields accuracy that surpasses that provided by the Y-factor method and other cold-source implementations, especially for in-fixture, on-wafer, and automated-test environments. A scalar-calibrated method is also available that offers less accuracy but is faster and does not require an impedance tuner.
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Noise & Vibration Measurement Systems
BK8600
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Rotation can produce noise and extraneous vibration for any number of reasons and could cause wear, discomfort, or other problems. The BK8600 series of testers are specially designed to test for these.
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Noise Suppression Products / EMI Suppression Filters / TVS Diodes (ESD Protection Devices)
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Murata noise suppression products include compact EMI suppression filters that efficiently eliminate noise, L Cancel Transformers (LCTs) that greatly suppress noise in high-frequency bands by reducing the ESL generated inside capacitors and in boards, and TVS Diodes that guard semiconductor devices against electrostatic discharge from external sources. Murata supplies products that support a variety of approaches to suppressing noise.
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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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Ultra-Low Noise 2 kHz Photoreceiver w/ Si-PIN Photodiode
PWPR-2K-SI
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Picowatt Photoreceiver series PWPR-2K with switchable gain (10 to the 9th V/A, 10 to the 10th V/A) and a bandwidth from DC to 2 kHz is the perfect choice for cw-measurements, time resolved signal acquisitions and highly sensitive modulated measurements. Si and InGaAs models cover the wavelength range from 320 to 1700 nm.
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V-Band Low Noise Amplifier 50 to 75 GHz, 35 dB Gain, 5 dB NF
SBL- 5037533550-1515-E1
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50 to 75 GHz, 35 dB Gain, 5 dB Noise Figure V Band Low Noise Amplifier for IEEE 802.11.ad WiGig. Model SBL-5037533550-1515-E1 is a low noise amplifier with a typical small signal gain of 35 dB and a nominal noise figure of 5 dB across the frequency range of 50 to 75 GHz. The DC power requirement for the amplifier is +8 VDC/150 mA. The mechanical configuration offers an in-line structure with WR-15 waveguides and UG-385/U flanges.
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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 Figure Measurements With Vector Correction
S97029B
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The instrument’s standard receivers are used for noise figure measurements with the S97029B. An external preamplifier and filter(s) is required for devices with < 30 dB of excess noise (gain plus noise figure in dB)
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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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Pulse Function Arbitrary Noise Generator
81150A
Arbitrary Waveform Generator
1 - 120 MHz pulse generation with variable rise/fall time1 - 240 MHz sine waveform output14-bit, 2 GSa/s arbitrary waveforms512k samples deep arbitrary waveform memory per channel Noise with a selectable crest factor and signal repetition time of 26 days FM, AM, PW, PWM, FSK modulation capabilities up to 10 MHz1 or 2 channel, coupled and uncoupled Differential outputs
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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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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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Power Sensor and SNS Noise Source Cable (6.1m/20 feet)
11730C
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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USB Smart Noise Source, 500 MHz To 50 GHz, 5 DB ENR Nominal
U1832C
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The USB-powered (USB TMC compliant) U1832C provides broadband noise figure measurements from 500 MHz – 50 GHz with modular signal analyzer, benchtop X-Series signal analyzers and Fieldfox
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Low Noise Amplifiers
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LNA is an outstanding and mature product line of Skylink Microwave. We provide high performance low noise amplifiers in the industry, with reliable and rugged quality. Ultra low noise, ultra broadband and compact size are our specialty and enduring pursuit. Our engineers are committed to satisfying higher custom requirements of our customers and insist on designing optimized products to meet market challenges. Skylink Microwave provides you an extensive line of low noise amplifiers and the most economical choices.
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Low Noise Super Wide Band Amplifiers
WBA Series
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WBA series low noise amplifiers have the octave bandwidth from MHz to GHz. With super low noise figure and exceptional low VSWR, WBA series LNA achieves exceptional gain flatness accross octave or multi-octave bandwidth.
