Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Phase Noise Test System
N5511A
The Keysight N5511A phase noise test system (PNTS) lets you measure at the limits of physics with readings down to kT (-177 dBm/Hz). The N5511A PNTS is a replacement for the gold-standard Keysight E5500 phase noise measurement system and is designed to meet the needs of phase noise power users.
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Noise Generators
GShM Series
*Operating temperature: +15...+25°C*Detection error for excessive relative noise temperature: +/-0.4 dB*Power consumption — <35 mA
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Precision Pink Noise Generator
Noise Plug
The NOISE PLUG is a complete precision pink noise generator built in a XLR microphone connector. Inside the NOISE PLUG is an ultra wideband, avalanche junction white noise source.
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Noise Dosimeters
Noise Dosimeters are wearable, portable, wireless (cable-free), personal noise exposure meters for occupational and workplace noise measurements. They are designed specifically to monitor an employee’s noise exposure in order to comply with Health and Safety regulations.
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Noise Dosimeter
doseBadge5
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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Phase Noise Analyzer
NXA-6
This new NXA-6 is a sea-change in Phase Noise Test Systems. Making both residual and absolute noise measurements out to 6 GHz, this self-contained instrument uses either internal or external references with cross correlation for maximum dynamic range.
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Low Noise Pre-Amplifiers
Low Noise Pre-Amplifier and companion external low noise amplifier (LNA) are used to amplify low level microwave signals. The Pre-Amplifier contains an AC/DC power supply, internal low noise amplifier, and a bias tee to source a DC bias voltage on the RF input connector.To overcome cable loss between the test antenna and the Pre-Amplifier assembly, a remote low noise amplifier (LNA) is mounted directly onto the 10 GHz antenna. A bias tee inside the Pre-Amplifier chassis powers the remote LNA through the coax cable interconnecting the pre-amplifier and the 10 GHz test antenna.
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Acoustical Random "Noise" Generator
ARNG-2000
Eliminate and Defeat otherwise undetectable distance surveillance devices such as Microwave, Laser and Boom Microphones
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Mechanical Noise Tuner Control
S93027B
The S93027B enables to control Maury Microwave’s LXI tuner as the impedance tuner and measure the noise figure of unmatched devices (Gamma opt. < 0.9) with the N524xB PNA-X with option 029 and the S93029B noise figure measurement software.
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Broadband Calibrated Noise Sources
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 Current Preamplifier
SR570
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
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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Super Low Noise Amplifiers
WCA Series
WCA series super low noise amplifiers have sub-0.5 dB noise figure at VHF band with several octave bandwidth. The amplifiers have 75 Ohm impedance.
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Ultra Low Noise DC Power Supplies
R4G Series
R4G series are series regulator system DC power supplies so that enabled setting and reading out more fine output with a 4-digit indicator on furont panel and a high resolution D/A and A/D converter adopted newly.
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Noise Sources
NC3208
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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ECM Noise Under RF Test System
BK8020
The BaKo Type BK8020 ECM Noise Under RF Test System tests microphones under RF noise, using a ‘Direct Injection Test’ in the frequency range of 5MHz~2.5GHz with an amplitude modulated (AM) disturbance signal of 1kHz. You run the system using the controlling PC, which allows automatic configuration and which runs the test sequence automatically. When you finish testing, you can print data as an MS Excel report or save it for comparison and analysis.
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Low Noise Amplifiers
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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General Noise & Vibration
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 And Vibration Tester
In a miniaturized motor, even the slightest rumbling sound that occurs during rotation can be a cause for failure.
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Brake Noise Testing
Brake Noise Testing - Brake Squeal AnalysisDewesoft Brake Noise testing solution, also known as Brake Squeal, is ideal for detecting and tracking noise caused by mechanical vibration in various braking systems based on the VDA 303 guideline algorithm.
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Components - Low Noise Amplifiers (FLNA)
FLNA series
Farran's FLNA series low noise amplifiers are constructed with discrete or MMIC pHEMT devices that operate over the frequency range 18 to 110 GHz. These amplifiers are specifically designed for low noise applications.The amplifiers are offered in two categories: standard and custom-built. The custom-built amplifiers are offered in various RF interfaces, including standard waveguide or coaxial connectors, for convenient system integration.
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Noise Figure Measurements With Vector Correction
S93029B
The S93029B noise figure application enables high-accuracy noise figure and noise-power measurements of amplifiers, frequency converters, and mixers, utilizing Keysight’s unique vector-source-correction technique
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Broadband Coaxial Noise Sources
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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Low Phase Noise Amplifiers
Macom Technology Solutions Holdings Inc.
MACOM is committed to an expanding portfolio of low-phase noise (>150dBc/Hz @ 1k Hz offset) amplifiers for critical signal generation applications in test and measurement and defense. These offerings complement our line of NLTL GaAs comb generators.
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Pulse Function Arbitrary Noise Generator
81150A
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 Dosimeters
Spark Family
Spark® series dosimeters are compact, affordable and tamper-proof personal Noise Dosimeter that measures the following to applicable IEC and ANSI standards:*Noise Exposure: Multiple Dose; Projected Dose; Time Weighted Average; (all with 4 user selectable combinations of Exchange Rate, Threshold, Criterion Level and Criterion Time); Sound Exposure Level*Sound Levels:; Leq; Lmax; Lmin; Lpeak/Luwpk, SEL and more*Time and number of events above Ceiling Level (115 dB) and Peak Level (140dB)
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Sound Level Meters & Noise Meter
Cirrus offers a range of Class 1 and Class 2 hand-held sound level meters and accessories to cover all noise measurement applications from simple noise tests to detailed noise analysis. Our range of Sound Level Meters and Noise Meters spans simple instruments that provide the measurement of Sound Level, Integrating-Averaging instruments that provide Leq and occupational noise functions as well as precision data logging sound level meters with 1:1 & 1:3 real time octave band filters and in-measurement audio recording.
