Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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DBAir Safety Managers Noise Meter System With Octave Bands
06NK103
This Sound Level Meter System with Octave Bands is the ideal system for the professional Health and Safety Manager with occupational noise monitoring duties.
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Noise Monitoring
Larson Davis provides complete solutions for noise and vibration measurement and analysis. From stand-alone, simple-to-use instruments to complete systems including sensors, data acquisition, and software, Larson Davis has what you need.
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Linear Bench Power Supplies Local Control, Ultra Low Ripple/Noise
Series MSK
Kepco's MSK linear power supplies provide a selection of five models, offering 100 Watts of stable benchtop power. They use a high gain linear (series pass) stabilizer circuit for ultra low noise and low ripple output, good stability, and accurate resettability, and they are MIL-STD-461 compliant.MSK's "Preview" switch (d-c on-off) allows voltage and current to be pre-set with the digital meters displaying the set values. At "d-c off," no voltage is applied to the output terminals and no load current needs to be drawn to set the current limit. At "d-c on," the set voltage is applied to the output terminals, the appropriate mode indicator illuminates and the meters indicate actual voltage and current.
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Low Noise Amplifiers
Our range of ITAR Free, Low Noise Amplifiers (LNAs) cover a wide range of applications but are primarily suited to communication systems including both Data-Link and Satellite Communications (Satcom) systems. Our new K-Band LNA operates over a 19.2 - 21.2 GHz with 1.3 dB Noise Figure at 25°C. It is configured with a waveguide input and 2.92 output connector all in a hermetic package.
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Noise Figure Measurements With Vector Correction
S97029B
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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Compact WCA Noise & Vibration analyzer
AD-3651
Noise & vibration analyzer, from in-vehicle order tracking to MIMO analysis. Compact WCA for analysis of noise and vibration for in-vehicle order tracking analysis.The long time experience and know-how of A&D in the automobile field of instrumentation and listening to user suggestions are what gives the A&D model the lead with its unmatched specification and functions. Best of all is its compact size and light weight. At the same time, all the functions you would expect to find in multi channel noise and vibration analyzers are included, plus more enhanced features.
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Low Noise Test Leads For N1413 With B2980 Series, 3m
N1425B
The N1425B is designed to operate specifically with the B2985B/87B. It can hold DUTs with large terminals being used with the N1426C. The N1426A with the N1425B is available for measurements of small DUTs such as PC boards or IC sockets. The N1426B with the N1425B enables the construction of simple custom-made test leads. The N1413A High Resistance Meter Fixture Adapter is also required to connect the N1425B to the B2985B/87B.
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Noise Sources
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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Two Channel Phase and Amplitude Noise Analyzer
DCNTS -190
The DCNTS is a two channel Phase and Amplitude noise analyzer. Its dual demodulator architecture allows the system to use cross-correlation to cancel its internal noise and limitation; it is like comparing the outputs of 2 systems and only display the similarities while rejecting differences. Its main extension is the Residual Noise measurement front-end which includes all necessary hardware to automatically measure residual noise on 2-ports devices either in RF frequencies or microwave. It could be a frequency multiplier or divider, an amplifier or any other phase coherent input to output device.
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Noise Monitoring Kit
LxT NMS SoundExpert
In addition to the SoundExpert LxT meter, this kit includes the EPS042 protection case and D-cell battery pack, the EPS2116 microphone protection shroud, and EXC010 10 ft. cable. Using D-cell alkaline batteries, allows the noise monitor to be smaller and lighter; avoid the expense of shipping heavy lead acid batteries and the hassle of recharging. You can transport it easily to your site, deploy it, measure data, retrieve your system, download the data, and issue your report.
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Noise Source Family
SNS Series
Works in conjunction with the NFA Series of noise figure analyzers to simplify measurement set-up and improve accuracy and reliability, automatically downloading electronically stored calibration data.
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Linear Power Supplies Voltage Stabilizer/Current Limiting, Ultra Low Ripple/Noise
Series JQE
Series JQE power supplies are systems-type voltage stabilizers with current limiting. They are available in a variety of ratings: 100 watts in a 1/4-rack package, 250-500 watts in a 1/2-rack package, and 1000 watts in a full-rack package. These power supplies offer ultra low noise and ultra low ripple at the output. They are MIL-STD-461 compliant.The traditional analog meters (M Models) have been replaced by digital meters on DM models. Availability of models with analog meters is limited and they will be discontinued in the future.
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Low Noise Op Amplifiers (≤ 10nV/√Hz)
Analog Devices’ portfolio of low noise (≤ 10nV/√Hz) op amps includes many amps with the lowest noise performance in the industry. These high speed, low distortion (1 nV or less) op amps enable better signal fidelity in the most demanding conditions, allowing system designers to achieve the lowest total system noise performance in applications with high source impedances. We feature a considerable variety of these amps with wide supply ranges and low power.
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Fullband Coaxial Noise Sources
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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Digital Noise Filter
DSP-599zx
The DSP-599zx, with highly aclaimed digital noise filters, is part of the latest generation Timewave DSP filters. Incorporating the newest high speed CPU, the extra power gives the user unparalleled features and field upgradeability for the future. The new LCD display, pushbuttons, and Visible Memory let you see the exact settings of the filter. The optical encoders give the operator continuous tuning of the filters.
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Dual Channel, Low-Noise DC Bias Card
PI-41701
The PI-41701 is a dual channel bipolar DC Bias supply that can provide an output current up to 100 mA per channel. The output voltage ranges from –8 V to +8 V and features programmable current limits with LED indicators and software interrupt to show/alert the user if the channel is in current limit. This card has special filter circuitry to reduce the output noise for those applications that require a low noise bias output.
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Low Phase Noise Reference Source
96270A
The 96270A RF Reference Source is the simplest, most accurate and cost-effective single instrument for calibrating spectrum analyzers and RF power sensors and more, up to 27 GHz.
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Noise Sources
WGNS
The system allows the user to extend the frequency range of the NFA to allow for accurate noise figure measurements to be performed on a device operating in the 26.5 – 170GHz range on wafer as well as in benchtop applications. Farran offers the WGNS series of noise sources to be used in conjunction with the FBC down converters for use as frequency extenders for noise figure measurement test system.
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Noise Location Package
Type HFDF
National RF’s Type HFDF high frequency location system is a proven noise hunting and location directional antenna system that allows you, in many cases, to walk right up to the source of High Frequency (HF) noise! Used by several power companies around the United States, professional noise hunters, and other communications specialists, the HFDF has located noise sources that emanated from pole power transformers, arcing electric fences, CATV in-line amplifiers, plasma TV screens, and even Marijuana grower’s heating lamps! The system incorporates several plug-in, tunable magnetic loop sensors of a proprietary National RF design, that cover the frequency range between 1.8 MHz and 55 MHz. The unit is packaged in a hand-held, lightweight metallic enclosure, with a pistol grip and a magnetic compass mounted on top. The compass is used to get magnetic bearings to the noise source, which may be plotted on a map to triangulate, and ultimately pin-point, the location of the noise source. In certain cases, our customers tell us that they have been able to walk right up to the interfering noise source and correct the situation on the spot!
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Low Noise Dual Band VCO
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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Phase Noise Analyzer and VCO Tester
FSWP
The R&S®FSWP phase noise analyzer and VCO tester features very high sensitivity thanks to extremely low-noise internal sources and cross-correlation. It can measure phase noise and amplitude noise in mere seconds on highly stable sources such as those in radar applications. Additional options such as pulsed signal measurements, residual phase noise (including pulsed) characterization and integrated high‑end signal and spectrum analysis make the R&S®FSWP a unique test instrument.
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Noise Board
332D-11 VG
This printed circuit board was designed to original specifications and contains OEM specified parts. This board is required for testing the 332D-11 series gyros. Also contained on board is the Method A type calibration and sample and hold circuits required to perform the calibration of the noise circuits.
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Low Noise Amplifiers
WA Series
WA series low noise amplifiers are the balance type LNA with alarm capability in some of the products. Besides offering very low noise figure and wide bandwidth, the LNA have high linearity with unconditional stable design. The noise figures are from 0.40 dB to 1.0 dB and IP3 from 30 dBm to 40 dBm.The amplifiers cover the frequency bands of VHF, UHF, Cellular, GSM, DCS, PCS, 3G, C, and wireless LAN. The built-in alarm capabilities include Branch 1 and Branch 2 alarms, Soft Failure alarm, Hard Failure alarm, Soft alarm Open-Collector, and Hard alarm Open-Collector.
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Linear Bench or Rack Mount Power Supplies Programmable, Local Control, Ultra Low Ripple/Noise
Series PAT
SERIES PAT are operationally programmable power modules that can be programmed to any level within their rated range and fully loaded at any output setting. These power supplies offer ultra low noise and ultra low ripple at the output and are MIL-STD-461 compliant.
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Test Accelerometer Sensitivity And Noise Test
Accelerometer Test Unit
*Quick and Accurate Accelerometer Test*Battery operation*All tests use 32-bit resolution A to D Converter*All data downloaded to PC via Ethernet link*Records all data to a flexible easy to use database*Records time and date of tests
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Pass-by Noise System
Vehicle Pass-by Noise TestingA very flexible Pass-by noise test system for characterizing the overall acoustic signature of any vehicle. Our solution brings a simpler, more effective and cheaper way to obtain accurate velocity and acceleration results for the Pass-by Noise test.
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Ultra-low Noise High Voltage Amplifier
WMA-200
The Falco Systems WMA-200 model is a high quality, high voltage, linear laboratory amplifier optimized for experiments requiring world-class, ultra-low output noise. The excellent noise performance, combined with the wide bandwidth and large voltage range make this amplifier the preferred choice for the most demanding precision positioning systems. The amplifier will routinely enable sub-atomic positioning resolution with piezo positioning systems and MEMS devices. Two WMA-200 amplifiers and a WMA-IB-LN phase inverter - buffer can be used to double the output voltage.
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Noise & Vibration Tester
System PC Based particularly suitable for vibration and noise measurements for the characterization of mechanical, electromechanical and electroacoustic and for the control and monitoring of installations of production. Complete configurability for the use of platforms PC (Notebook, desktop, PXI) suitable to applications of both static labotatorio, both dynamic (eg road-test) and also in the production line (functional tests and monitoring).
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Low-Noise Design
* Sound Quality: Find our what your end users like or dislike about emitted noise. * Low-Noise Product Design: Apply interinsically-quiet design principles to your device * Fan Noise: move cooling air quietly * Gas Flows: Reduce noise from industrial gas processes * Advanced analysis and signal processing: Finding the relevant "needle" in the "haystack" of data.
