Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Noise Monitoring Systems
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It delivers 24/7 connectivity, continuous power capabilities, and a rugged design to simplify your long-term testing.
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Low Noise Amplifier
1010
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A low noise, DC-coupled amplifier is packaged in a rugged, die-cast aluminum case with BNC connectors enabling input and output. Provides very low voltage noise and current noise in the critical region of 0.1 Hz to 10 Hz making this the ideal amplifier for thermopile detectors in sensitive systems design and laboratory experiments.
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Low-Noise Amplifier
CARM-02
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HYPRES is proud to announce an Analog-RF Amplifier product. Using state-of-the-art low-noise amplifier and compact cryogenic cooler, the Cryogenic Analog RF Module (CARM-02) provides amplification with extremely low noise.
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Low Noise Amplifier
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R&K’s Low Noise Amplifier (LNA) series products are a type of small signal amplifiers but with excellent noise figure. LNA is designed to significantly minimize additional noise to be introduced inside the product, and capable to amplify the input RF signal to the required level with minimal impact from noise on output RF signal.
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Four Channel Low-Noise DC Bias Card
PI-41702
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The PI-41702 is a four 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 this card has special filter circuitry to reduce the output noise for those applications that require a low noise bias output. Additionally there is a ‘D’ type connector that allows the introduction of laboratory type supplies to reduce the noise further. To change from using the internal power supplies to external power supplies requires repositioning jumpers. The PI-41702 also has voltage and current sense for remote measurement of the voltage and current levels.
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Low Phase Noise Amplifiers
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Low Phase Noise amplifiers are critical for many applications requiring high signal integrity. This is especially relevant in instrumentation, defense, and telecommunication applications where low phase noise amplifiers are becoming increasingly important as the oscillators improve. Phase noise is described as the close-in noise to the carrier that can often appear as jitter on a clock signal. Analog Devices offers a large portfolio of low phase noise amplifiers to meet a variety of requirements in the LO network, receiver, as well as in the transmitter. Our portfolio supports a wide range of power levels and frequencies to provide the right solution for the given application.
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Dual Channel, Low-Noise DC Bias Card
PI-41701
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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 Noise Voltage Preamplifier
1201
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The Model 1201 Voltage Preamplifier with Remote Gain Programming Option (06) is usable in both computer controlled and maual applications requiring uncompromising performance.
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Small Device Noise Emission Test System
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The Small Device Noise Emission Test System from VIacoustics is a turnkey solution for the measurement of noise emissions of small devices typically used in computers, consumer electronics, appliances and automobiles. The system includes all hardware and software necessary (see the components tab) for the determinations of sound power levels (1/3 octave band and A-weighted), emission sound pressure levels (normalized 1/3 OB, A-weighted and high resolution FFT) and *ISO 532B loudness. The system is designed to be operated by a technician for production level testing or to be used by an engineer in the product development process.
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Noise Source Family
SNS Series
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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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Phase Noise Measurement Up To 125 GHz
S930321B
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S930321B enables phase noise measurements using a PNA or PNA-X vector network analyzer. Simplify your measurement workflow by measuring phase noise on the same connection as your network analysis measurement of 2-port active devices up to 125 GHz, without needing to connect a spectrum analyzer or harmonic mixer.
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Noise Monitoring Station
HD2011NMT
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HD2011NMT is a remote control Noise Monitoring Station with meteo parameters acquisition. It is designed to be part of a network of noise monitoring terminals or a stand alone unit.
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Particle Impact Noise Detection (PIND) Test
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This test detects the presence of free moving particulate contaminants within sealed cavity devices. This test is specifically directed toward relays and other devices where internal mechanism noise makes rejection exclusively by threshold level impractical. This test method also may be used prior to final sealing in the manufacturing sequence as a means of eliminating loose particles from the interior of the device.
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Industry Standard in Noise Measurement
PN9000
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The PN9000 is a simple and fast Automatic Phase Noise Test System covering a very wide frequency range(2 MHz to 140 GHz). Its modular architecture allows optimum configuration, multiple measurement techniques and future growth in a compact instrument.
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Forward Path NPRT 2200 Noise Power Ratio Test Set
NPRT 2200-F
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The NPRT 2200 measures the NPR of a device across a range of power levels. This test quantifies intermodulation distortion and determines the dynamic range of optical transmitters, amplifiers and other active HFC network devices. The included PC software uses predefined test setups to run a "Power Sweep" series of NPR measurements and graph the results.
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RF Noise Source
NS-3
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The NS-3 Broadband RF Noise Generator provides an extremely flat AWGN (Additive White Gaussian Noise) signal from 5 to 2150 MHz. The output level adjusts in 0.1 dB steps over a 30 dB range.The bench-top configuration is standard and an optional two unit rack enclosure is available. The RS232 or USB remote control interface simplifies its use in automated test and factory ATE environments. The NS-3's combination of range, versatility and value make it the ideal general purpose broad-spectrum signal source for bench and ATE applications, including C/N, BER, MER, PER testing and rain fade simulation.
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Components - Low Noise Amplifiers (FLNA)
FLNA series
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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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SCB-100A Noise Rejecting, Shielded I/O Connector Block
785024-01
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100-Pin Female SCSI to 100-Pin Female Screw Terminal, DIN Rail, Wall, Pane Terminal. Block The SCB-100A is a shielded I/O connector block for interfacing I/O signals to NI data acquisition devices with 100-pin connectors. Combined with shielded cables, the SCB-100A provides rugged and protected signal connectivity. It has a mechanical enclosure that features a magnetic removable lid and pinout diagrams. It also includes pane, wall, and DIN Rail mount options.
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High Frequency Noise Simulator
SKS-H04GA
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Shanghai Sanki Electronic Industries Co., Ltd.
The high-frequency noise simulation generator is an EMC test instrument that reproduces high-frequency noise with a fast rise time when the switch is turned on/off. Since the pulse rise time is less than 1ns and contains wide bandwidth noise, it is very suitable for reproducing malfunctions. The line noise entering the power line and the induced noise entering the communication line can be reproduced, and the performance evaluation of the malfunction and function degradation of electronic products can be performed.
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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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Permanent Noise Monitoring System
831-NMS
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The Model 831-NMS permanent noise monitoring system is designed for long term monitoring around airports, industrial facilities, motorsport complexes, wind farms, mining operations, and within the general community. Many required accessories are integrated through the INT docking station. Two way remote communication is available for monitoring and control from a central station. Larson Davis provides the hardware, software and open interface to allow this system to be customized for any application or purpose.
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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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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 Nuisance Recorder
Trojan2
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The Trojan2 Noise Nuisance Recorder was designed in conjunction with Local Councils, Environmental Health Officers and Housing Associations to allow you to easily measure, monitor and record noise nuisance.
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Low Noise Amplifiers
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Our range of ITAR Free, Low Noise Amplifiers (LNAs) cover a variety of applications but are primarily suited to airborne, maritime and ground based radar systems. LNAs are primarily intended to minimise added noise whilst providing high gain so design focusses on the parameters associated with the noise response of the amplifier. They are usually the first amplifier in the Radar detection chain and will have the lowest noise figure.
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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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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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Turnkey Solution for Unattended Noise Monitoring
NoiseScout
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NoiseScout provides a comprehensive but easy-to-use 24/7 noise monitoring solution. Noise levels are recorded on-site by the XL2 Sound Level Meter and are available online for monitoring and download. NoiseScout is aimed at both short term noise assessments and long term monitoring applications. During acquisition, automated email alerts allow noise issues to be addressed before a non-compliance condition arises. NoiseScout displays the noise levels measured by the XL2 Sound Level Meter live in your web browser. The measurement data recorded out in the field is presented online in charts and dashboards. Multiple noise level meters can be monitored simultaneously within the map view, thus providing localized geographic visualization for all noise levels at a glance. Identified users can access all their projects, control their monitors or create basic view modes, allowing stakeholders to oversee their noise level data.
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Precise Measurement of Airborne Noise Insulation
Isokell
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Isokell offers a flexible method geared specifically to the needs of the automotive industry for measuring airborne noise insulation and the transmission loss of vehicle components. The system is easier to use and less costly than traditional acoustic measurement systems.





























