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Noise Sources
create signal disturbances for the purpose of noise instrument calibration.
See Also: Pink Noise, Noise Generators
- Pickering Interfaces Inc.
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14 Slot, 3U, 350W, PXI Chassis - Low Noise Fan
40-914-201
This PXI chassis includes all the features and performance required by the PXI standard and supports a control interface or embedded controller and up to 13 more 3U peripheral modules.
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1000W Ferroresonant Power Supply
Series PRR
Kepco's PRR are 1000 Watt rack mounted laboratory systems power supplies that offer the low cost and very high dependability of ferroresonant voltage stabilization.The ferroresonant stabilizing technique provides extraordinary isolation from a wide variety of source noise. It is inherently short-circuit proof and cannot expose delicate loads to overvoltage hazards. Hence no crowbar, fuses, or bounding circuits are needed. Ferroresonant power supplies use no noise-producing switches or oscillators. Voltage setting is independent of delicate control settings or diode references and requires no comparators, references, or limiters. Efficiency is 70-80%.
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Manual Tuners
Manual tuners are used both in the laboratory and as system components to establish or transform impedances for a number of applications. They can be used to establish optimum source or load terminations for device characterization, normalize a source or load for precision laboratory measurements and/or calibrations (noise, power, etc.), and can act as a matching transformer between a mismatched source and a mismatched load.
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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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CT / PT Analyzer
CTPTA-504
UDEYRAJ ELECTRICALS PRIVATE LIMITED
UDEY ‘CTPTA-504 is a comprehensive CT and PT analyzer. It’s constant voltage and current is highly stable. DSP system controls the constant voltage and current source output and amplitude. This source generates AC of 0-125V and or DC of 0-0.5A current to sample CT. The DSP system besides controlling the sources, also samples data and communicates with the internal computer. Display screen is large LCD with touch pad. The analyzer is highly accurate with high noise immunity and is very user friendly.
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Tunable Laser Source
AP405xA series tunable laser sources are high performance external cavity Littman tunable lasers combining wide tuning range, high output power and high signal-to-noise ratio. Different wavelength ranges are available between 1000 nm and 1650 nm. Tunable laser sources OEM and stand-alone benchtop instrument versions are available. The TLS benchtop instrument is proposed with a friendly-user software, a touch sensitive screen, GPIB, ethernet , RS-232 and USB controls.
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Low Level Voltage Measuring Instruments
This instrument has a very wide range of source resistance capability and has an equivalent noise resistance of less than 10 ohms. Sub-nanovolt resolution is possible. The N11 has many applications, including cryogenic measurements.
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Zero Bias Schottky Detectors
Fairview Microwave’s line of coaxial packaged zero bias Schottky detectors feature matched inputs for excellent VSWR, voltage sensitivity levels that range from 100 to 500 mV/mW for small signal detection, negative video output polarity, and can withstand maximum input power levels up to +20 dBm CW. Operating temperature range covers 0°C to +90°C and storage temperature of -65°C to +125°C. These zero bias Schottky detectors utilize compact cylindrical package outlines that are made of passivated stainless steel and offer a variety of popular input/output SMA and BNC connector configurations that make them ideal for use with precision test and measurement, instrumentation, and subsystems assemblies. Numerous applications include power measurement, leveling pulsed signal sources, AM noise measurements, radar or missile guidance systems, monitoring system level performance, and pulsed RF measurements.
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Noise Receiver Modules And Noise Switching Modules
MT7553 Series
Noise Parameters are the non-50Ω extensions of Noise Figure, and are an important modeling and model validation tool to understand how a device-undertest’s performance changes as a function of source impedance. Noise Parameter measurements are typically performedusing a Vector Network Analyzer (VNA) to measure the S-Parameters of the DUT, and a Noise Analyzer (either Noise Figure Analyzer NFA or Spectrum Analyzer SA) to measure the noise power of the DUT. Noise parameters are calculated from a combination of knownsource impedances, S-parameters and noise powers.
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Sindie Online
Sindie Online is an industrial-grade process analyzer delivering continuous sulfur detection to monitor fuel streams and help to prevent tank contamination. It has many advantages over competing technologies: Powered by MWDXRF, Sindie Online has an exceptional signal-to-noise ratio using monochromatic excitation of the X-ray source characteristic line – a technique that is faster, safer and cleaner than UVF.
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Phase Noise Measurement Solution, 50 kHz to 110 GHz
E5505A
The Keysight Technologies E5500 Series of phase noise measurement solutions offers the most flexible set of measurements on one-port VCOs, DROs, crystal oscillators and synthesizers. Two-port devices, including amplifiers and converters, plus CW, pulsed and spurious signals can also be measured. The E5500 measurements include absolute and residual phase noises, AM noise, and low-level spurious signals. The stand-alone instrument architecture easily configures for various measurement techniques, including the PLL/reference source technique, residual and FM discriminator methods.
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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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Multifrequency Clock Synthesizer - PMC
Model 7190
- Simultaneous synthesis of up to 5 different clocks- 8 SMC clock outputs- Ideal for A/D and D/A converter clock sources- Typical phase noise: -125 dBc/Hz @ 1 kHz offset- All clocks are phase-locked to input reference signal- Input reference frequency of 5 or 10 MHz- Four quad VCXOs allow selection from 16 different base frequencies- Output clocks of 1, 2, 4, 8, or 16 submultiples of VCXO base frequencies- Output clock frequencies between 50 and 500 MHz- Control and status via PCI bus interface
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RF Reference Sources
The 27 GHz 96270A and 4 GHz 96040A Low Phase Noise Reference Sources are designed specifically for RF calibration, featuring a calibration-oriented interface, precision signal level and attenuation, high signal purity and precision low distortion modulation. Both instruments simplify the process of RF calibration by reducing the amount of equipment and simplifying the calculations required.
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Isolated Digital Expansion Board
MSXB 078
The Microstar Laboratories Isolated Digital Expansion Board, part number MSXB 078, provides isolated digital expansion for Data Acquisition Processor (DAP) systems. Use these boards to eliminate ground currents – a potential source of noise in your measurement and control signals – and eliminate timing errors from high-channel count digital I/O.
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Troposcatter Simulator
HTSS
Hollis Electronics Company LLC
Hollis Electronics HTSS is a quad diversity Troposcatter channel simulator which interfaces with your radio equipment at 70 MHz IF. The complete digital implementation provides high accuracy and exact repeatability. An integrated AWGN noise source coupled with an internal power meter supports accurate setting of SNR and Eb/No.
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USB Smart Noise Source, 10 MHz to 26.5 GHz, Nominal ENR 15 dB
U1831C
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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16 Bit Waveform Generator
PA72G16400
The PA72G16400 is a 16-bit arbitrary waveform generator, capable of generating waveforms at speeds up to 400Msps. The high resolution and the high sample rate allows generating signals with very low quantization noise levels. An onboard offset voltage source allows generating offset signals while maintaining optimal utilization of the DAC’s digital range. With the 8MWord of memory, there is lots of room for uploading several different patterns, allowing switching patterns with minimal bus communication.
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Amplified Noise Modules
NC1000 Series
The NC1000 Series amplified noise modules produce AWGN as high as +13 dBm, and have bandwidths up to 10 GHz. The high power modules are designed to test noise immunity for Cable TV equipment, secure communication channels, and military jamming systems. The lower power modules, <= 0 dBm, are random jitter sources for many applications including, PCIexpress, Infiniband, and 10 GigE.
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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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Microwave / RF Synthesizers, Test & Measurement
Berkeley Nucleonics Corporation
The 825-M is an agile ultra-low phase noise RF signal source from 8 kHz to 20 GHz RF Synthesizer. It is available in single-channel or multichannel configurations. A single channel 825-M is packaged in a compact enclosure, or can be ordered with a touch-screen display, or a 1U 19" rackmountable version. The multi-channel version (2, 3, or 4 channels) is packaged in a 19” 1U rackmount enclosure.
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Power Module Tester
The Power Module Checkout ATE is developed for testing DC-DC Power modules typically utilized in India's space program. The DC-DC converters are exhaustively tested for all design parameters including supply voltage range, line and load regulation, efficiency, ripple, noise, transient response and so on. Special power sources and loading mechanisms are deployed to enable testing of various types of power modules.
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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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Broadband Threshold Detectors
KRYTAR's All NEW Broadband Threshold Detectors are hermetically sealed for high reliability and are specifically designed for use in today's high-performance microwave instrumentation and systems. KRYTAR detectors are designed for such applications as power measurements, analyzing radar performance, leveling pulsed signal sources, AM noise measurements, system monitoring and pulsed RF measurements in ultra-broadband and mm-Wave applications.
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Signal Generators
SSG5000X Series
SIGLENT’S SSG5000X series of signal generators can generate analog and vector signals, and have a frequency range of 9 kHz to 4 GHz/6 GHz. They feature the industry-leading performance in phase noise, spectral purity, bandwidth, EVM, output power. The internal IQ modulation generator and waveform playback function make it easy to create even the most complex signal types. They also cover the most important RF band for digital wireless communications and include standard waveform files. The SIGLENT SSG5000X are powerful and cost effective sources that are ideal for R&D, education, and manufacturing.
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Signal Analysis
Cross-Spectrum FFT Analysis
The program Cross narrow-band spectrum is used for evaluation of the interrelation between the signals’ parameters obtained from the two primary transducers installed at various parts of the controlled object. This program can be used for detection of noise source location, for sound absorption level evaluation and the researched object acoustic properties control, for evaluation of space-time distribution of the directional energy flux (Poynting vector), for the ground cross-section FR characteristic evaluation (Nakamura method), etc.
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SOA Driver
S-109
SOA Driver slot module of FOTS system offers a special function that changes the amplification feature of input optical signal variously, by dynamically driving a built-in SOA module. This SOA Driver is an efficient module that can drive a high gain and low noise amplifier stably and modulate a high power amplified signal up to the rate of 155 Mbps. As a high power amplifier, this module drives the maximum amplified power of more than 10 dBm and has a stable broadband source characteristics of > 0 dBm. As a high-speed modulator of amplified signal combined with high current (400 mA) modulation technique, it outputs a high power and high bit rate amplified signal of > 155 Mbps with > 10 dBm peak power.
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Triple Output Power Supply
U8030 Series
The Keysight U8030 Series variable DC power supply has a total output of 375 W—making this solution an ideal power source in the design and manufacturing of electronic devices. The U8030 Series power supplies feature an output sequencing capability for semiautomated tests. These power supplies enable you to generate output sequences with minimal programming skills. This solution features excellent load regulation and clean output noise for continued stability.
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Data Acquisition Systems & Data Loggers
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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Fourier Transform Optical Spectrum Analyzer, 600 - 1700 nm
OSA202C
Thorlabs' Optical Spectrum Analyzers (OSAs) perform highly accurate spectral measurements. Compatible with fiber-coupled and free-space light sources, these compact benchtop instruments suit a wide variety of applications, such as analyzing the spectrum of a telecom signal, resolving the Fabry-Perot modes of a gain chip, and identifying gas absorption lines. Many commonly available OSAs use grating-based monochromators, which have slow acquisition times due to the need to mechanically scan the grating and average out noise at each wavelength. Thorlabs' OSAs acquire the spectrum via a Fourier transform using a scanning Michelson interferometer in a push/pull configuration. This approach dramatically improves the acquisition time, enables a high-precision wavelength meter mode with 7 significant figures and ±1 part-per-million accuracy, and allows the included software to provide robust statistical analysis of the acquired spectra, as explained in the Design tab.
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RF And Microwave Signal Generation And Analysis
The need for microwave test and measurement technology is even more urgent than the need for microwave equipment itself. Therefore, Shengbo Technology is relying on its own research and development capabilities to strive to become one of the comprehensive microwave test and measurement equipment suppliers. We provide a wide range of RF microwave test products, including a good-quality full-band broadband up-down converter . You can provide 2GHz real-time bandwidth signal up-down conversion function in the frequency range of 0.1 ~ 40 + GHz. With our channel simulator , we Became the first company in the world to provide channel analog solutions in such a wide range of broadband signals. At the same time, we are also an innovativesupplier of noise sources and multi-channel microwave signal sources in the industry.
