Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Noise Measurement Kits
Our noise measurement kits contain all the accessories you need to take accurate noise measurement instruments correctly.
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PXI Dual 4 to 1 RF Multiplexer 3GHz 50 Ohm MCX Terminated
40-876-102
The 40-876-102 is a 50 Ohm 4 to 1 RF multiplexer with 2 banks in a single PXI slot. Additionally, extra switching allows the common connection to be terminated into 50 Ohm, maintaining signal integrity. The module has low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. Each MUX has been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz with each path having a nominally equal insertion loss. The injection of noise and unwanted signals into the signal paths of the 40-876 has been minimized by careful attention to the mechanical and electrical design.
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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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Dynamic Signal Analyser
Dynamic signal analyzers provide highly accurate measurement and analysis, and are widely used in audio testing, acoustic measurement, environmental noise testing, vibration analysis, NVH measurement, machine condition monitoring, and rotating machinery evaluation. ADLINK's dynamic signal analyzer series features 24-bit analog-to-digital converters (ADCs) with sampling rates up to 432 kS/s for PXI, PCI, and USB platforms for flexible yet accurate measurement supporting high performance and cost-effectiveness in a wide variety of testing applications.
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Speaker Component Checker
Cab Driver
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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5000 Watt System Power Supply, 40V, 128A
6684A
Keysight high performance DC power supplies offer speed and accuracy for test optimization. The single output, 5000W, GPIB 6680A-6684A provide low output ripple and noise; selectable compensation for inductive loads; analog control of output voltage and current; and fan-speed control to minimize acoustic noise.
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ELT STALKER Vector-finder
VF-121
The Vector-Finder Types VF-121 and VF 121A are unique in the Vector-finder series of direction finding antennas. They incorporate a proven design, electro statically shielded loop sensing element with modern solid state low noise analog and digital technology to allow detection and location of aircraft band signals. Both the VF-121 and the VF 121A incorporate a unique digital modulator which allows the user to more easily home-in on unmodulated carriers. Such cases occur at airports when transmitter may be accidentally keyed on during aircraft overnight layovers. The VF-121 is specifically designed to be used on airport premises where signal strengths are high. To compensate for very strong signals, an integral attenuator is also incorporated to allow the user to operate the unit close-in to aircraft. The VF-121A differs in that a high gain, low-noise preamplifier is utilized with the sensing element in order to hunt signals that may be weak or at a distance. The unit is ideally suited for the location of ELT transmitters in the field. Both units are tunable over the 118 MHz to 130 MHz aircraft frequencies and interface directly to the user’s aircraft band receiver or transceiver via the antenna jack. With the antenna system connected to the receiver, the user will hear the desired signal. If the signal is unmodulated, the digital modulator will generate a tone on the carrier. When the handheld unit is rotated about, an audible null on the received signal or the generated tone will be heard. This null aligns with the axis of the equipment case and represents the direction of the received signal. This direction may be read from the black dial compass mounted on the top of the enclosure. As the response is bi-directional, triangulation may be used to determine the true bearing when the true direction is not known.
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Digital CMOS board level camera
C13949-50U
The core of the C13949-50U camera is the scientific image sensor, an The core of the C13949-50U camera is the scientific image sensor, an advanced CMOS detector that simultaneously achieves high resolution, fast readout speeds and low noise. With its small size, board-level design and simple, low-cost integration using USB 3.0, the C13949-50U is the ideal camera for OEM scientific imaging. Resolution: 12 megapixels (4096 3008)
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Audio Spectrum Analyzer
OscillometerXZ
OscillometerXZ is an Audio Spectrum Analyzer for real-time, FFT. Offers several functions like OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter.
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Low G Sensitive Oscillators
Precision Test Systems is increasingly becoming a world leader in ultra-low phase noise (ULN) crystal and rubidium oscillators. We manufacture the CFS10B crystal frequency standard and the RFS10E and RFS10F rubidium frequency standards. All these models can also be locked to the global satellite service operated by the USA (GPS), Russian (GLOSNASS) and Europe (Galileo). We also have a complete range of distribution amplifiers to compliment these frequency standards.
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Solution for Industrial Monitoring
PDScope
Techimp PDSCope is a brand new product of the PDCheck family particularly designed to suit all the requisites of the Techimp TiSCADA systems for on-line monitoring of diagnostic quantities in electrical assets.Techimp PDSCope is a powerful PD analyzer based on Techimp TF Map technology (patented) allowing preliminary noise rejection and automatic calculation of statistical parameters relevant to Partial Discharges.
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FaithTech FTL Series High Precision DC Power Supply (90W-1500W)
FaithTech FTL Series
Shenzhen FaithTech Technology Co., Ltd.
The FTL series is a high precision DC linear power supply with high performance, multi-function, medium and small power features. The product is stable and mature, and has comprehensive protection functions such as reverse polarity, overvoltage, overcurrent, overload and overtemperature, which can keep the power supply and load safe in unstable environments. FTL has a regulation rate of < 0.01%, ripple and noise of < 1mVrms and fine transient performance, and is suitable for application environments like current surges. The FTL series DC power supply is not only suitable for high-grade laboratory, but also for high-performance test systems.
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Frequency Block Converter
FBC
The FBC-XX-FB is a full band system can be built upon a Keysight N8975A Noise Figure Analyzer (NFA) or X Series Signal Analyzer with option N9069A. This 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 covering Ka, U, V, E, W bands (26.5-170 GHz), when used with an Agilent E8247C signal generator (or equivalent).
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PXIe-5668, Up to 26.5 GHz PXI Vector Signal Analyzer
783124-02
Up to 26.5 GHz PXI Vector Signal Analyzer - The PXIe‑5668 offers wide bandwidth with high-performance measurement performance and speed. It meets the challenging requirements of applications such as wireless communications, radio frequency integrated circuit characterization, RADAR … test, and spectrum monitoring and signal intelligence. With its implementation as a PXI instrument, the PXIe‑5668 also features the fast measurement speed required for high-volume manufacturing test, and multi-instrument synchronization capabilities for phase-coherent MIMO test. You can use the optionally included PXIe-5698 preamplifier to improve dynamic range and sensitivity near the instrument noise floor.
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Two -Dimensional PSD
Functions according to the Lateral Effect Photodiode principle. It is an analogue device and therefore displays excellent position resolution. The resolution is determined by the system signal-to-noise ratio. It is operated in the biased mode. Typical applications include: distance andheight measurement, alignment, position and motion measurements and vibration studies
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complete 1/2 inch Type 1 Measurement Microphone System
PS9200KIT
A complete 1/2 inch Type 1 measurement microphone system. Available in 1 Inch and 1/4 Inch versions. The heart of the KIT is the 1/2 inch Type 1 measurement microphone. A selection of 4 different 1/2 inch capsules is offered. These include models with frequency responses to 40 kHz, noise floors of 12 dBA in both free field and pressure versions. Microphone sensitivities range from 12 to 50 mV/Pa.
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Measurement Hardware
Whether it’s in a vehicle, on a test stand or monitoring equipment and machinery - imc data acquisition systems are easy to operate and will help you become more productive and profitable. Our products are suited for work in mechanical and mechatronic applications. They handle up to 100 kHz per channel, are compatible with almost all signal sources and sensors, and can measure nearly all physical quantities such as pressure, force, speed, vibration, noise, temperature, voltage and current. The spectrum of imc data acquisition systems ranges from simple data acquisition via integrated real-time calculations, to the integration of models and complete automation of test stands.
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FTTx PON Optical Amplifier (1540~1563nm)
HA5800B (2RU)
Hangzhou Huatai Optic Tech. Co., Ltd.
HA5800B (2RU) series is a low noise, high performance, FTTP high power, multi-ports optical amplifier with gain spectrum band within 1540~1563nm. Each output port for optical amplifier has built-in well-performed CWDM. Every external up-link optical port of optical amplifier can connect with OLT PON port very conveniently. Each 1550nm (CATV)'s output optical port multiplex 1310/1490n's data stream, in order to reduce the quantity of the component and improve the index and reliability of the system.
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Downconverter for the 21cm Bandvalon
2100
1440MHz inputLow noise figure LNA 0.3dB 20 KHigh gain >40dB8-pole ceramic dielectric input filterHigh dynamic range, low-spurious responses Rugged milled aluminum housingRFI shielded constructionDesigned for use with Valon 5009 as LOSuitable for hydrogen line observation and general radio astronomy in the 21cm band.6Vdc @ 400mAIncludes 20” dc power supply cable
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Outdoor AGC Optical Node
SR814WB
Hangzhou Softel Optic Co., Ltd.
*SR814WB series of 1310nm optical relay station is a two-way optical connector with HFC network engineering experience and equipment development experience accumulate for many years by ourselves only for HFC two-way Broadband Network. This product is designed with full consideration of network topological structure.The building block system modularized structure is adopted in SR814 Series *Field Optical Work station. It has flexible configuration and convenient debugging, and solves engineering and technical problems of collecting noise with two-way return path network. And it meets the requirements of modern CATV business network security transmission with high reliability of FTTB (Fiber to the Building).*SR814W Band SR814WB Optical Workstation are four way independent output models; WR-8604HB and WR-7504HB Optical Workstation are two way independent output models.*SR814W BOptical Workstation is our latest flagship product. Advanced optical AGC control circuit adds to the part of optical receiving to ensure the input optical power as low as -9dBm.
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Point Contact Diodes
SemiGen’s 1N Series of Point Contact Mixer Diodes are designed for applications through KA band. Each device in this series is specially designed for low noise gure, impedance and VSWR. Our devices are drop in replacements for all military and commercial requirements. These diodes employ epitaxial silicon grown in a speci c reactor for optimized performance. They are suitable for use in stripline applications.
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Infiniium S-Series Real-Time Oscilloscopes
S-Series
500 MHz to 8 GHz. See the truest representation of your signal with the industry’s best signal integrity: 10-bit ADC, low noise front end, superior time base, signal processing in hardware, and responsive deep memory Meet your measurement challenges with the industry’s most advanced platform; 240 GB removable SSD, powerful motherboard, fast data offload, and capacitive touch screen Find a solution that meets your needs with software that has 50 automated measurements and support for 100 probes
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IRIG Amplitude Modulated Time Code Distribution Amplifier
1205A / 1205A-MC
Precise Time and Frequency, Inc.
The ptf 1205A is a 12-channel IRIG amplitude modulated time code distribution amplifier housed in a 1U high, 19″ rack package. The ptf 1205A uses an RF design combining the latest technology in low noise components to minimize input/output delays which are of the order of nano seconds.The unit uses two stages of input signal buffering to distribute the input signal to 12 separate outputs, and insure maximum isolation between individual output signals.
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Signal Injectors
Ideal high performance, low noise compliment to your Circuit Sleuth Frequency Response Analyzer. An injection transformer is used to couple an excitation signal from a frequency source into the feedback loop of a control system. This allows loop gain and phase vs. frequency to be measured, with the loop closed, thus characterizing the stability of the system.
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Power Electronics Test
Aiming at the problem of PI, Shengbo Technology carefully studied the root cause of the problem. Through the loop analysis and noise analysis of power supply and automatic control, it provided targeted solutions for frequency response analyzer and power supply rejection ratio (PSRR) analysis . In addition, we also have a professional technical application support team in the field of power electronics testing. We can customize and develop the corresponding system software for customers so that it can be applied to PC / Servo / Telecom power supplies, adapters and chargers, and backlights. Inverter, LED drivers, ballasts for energy-saving lamps (Ballast), and even UPS, PV Inverter, electric vehicle chargers, AC and DC motors, etc.
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PXI/PXIe RF Multiplexer, Single 4-Channel, 3GHz, 50Ω, MCX
40-872A-101
The 40-872A-101 (PXI) and 42-872A-101 (PXIe) are 50 Ohm 4 to 1 RF multiplexers with 1 bank in a single slot. They have low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. Each MUX has been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz with each path having a nominally equal insertion loss. The injection of noise and unwanted signals into the signal paths of the 40/42-872A has been minimized by careful attention to the mechanical and electrical design.
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96-CH 12-Bit 3 MS/s High-Density Analog Input PCI Express Card
DAQe-2208
ADLINK DAQe-2208 is an high-density and high-performance analog input card. The device can sample up to 96 AI channels with different gain settings and scan sequences. It makes them ideal for dealing with high-density analog signals with various input ranges and sampling speeds. These devices also offer differential mode for 48 AI channels in order to achieve maximum noise elimination.
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NI-9203, 200 kS/s, ±20 mA, 8-Channel C Series Current Input Module
783731-01
200 kS/s, ±20 mA, 8-Channel C Series Current Input Module - The NI‑9203 is intended for high-performance control and monitoring applications. It features programmable input ranges and variable connectivity options. To protect against signal transients, the NI‑9203 … includes a channel‑to‑earth ground double‑isolation barrier (250 Vrms isolation) for safety and noise immunity.
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Serial Testing of Hybrid Drives
Series test bench with high testing depth for electric machines in hybrid drive concepts*Single or multi-chamber systems to optimize the cycle time*Testing the no-load and load characteristics*Motor and regenerative test*Short circuit measurement*Noise measurement (NVH)*Temperature measurement
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Tri-Temp Strip Level Test Instrument
Apollon
APOLLON is a tri-temperature strip-level test system for motion sensors. It is especially designed for high-end Automotive and Industrial applications. APOLLON offers extremely good testing conditions: high stimulus and temperature accuracy and low noise level.
