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Noise Sources
create signal disturbances for the purpose of noise instrument calibration.
See Also: Pink Noise, Noise Generators
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6.5-Digit Low Noise Power Source, 32 W, 210 V, 3 A, 2-Channel
B2962B
The Keysight B2961B Series 6.5-digit low noise source power supplies provide a power supply and source solution that meets the difficult measurement challenges researchers, designers, and developers face working on advanced components, circuits, and materials.
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High-Speed Precision SMU (100 FA, 60 V, 15 MSa/s)
PZ2121A
The Keysight PZ2121A is a high-speed precision source / measure unit (SMU) featuring best-in-industry narrow-pulse width, fast Digitizer Mode, and seamless current measurement ranging. It enables narrow-pulsed measurements and fast dynamic measurements with a wide dynamic range for a wide range of emerging applications such as vertical-cavity surface-emitting laser (VCSEL) optical devices, integrated circuit (IC) testing. In addition, its low measurement noise performance enables measurements with shorter aperture times, and its seamless current measurement ranging function enables a wide dynamic range and eliminates range change time, which improves test throughput.
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High-Power Noise Sources
These modules not only contain the noise diode circuitry, but also gain stages to boost the output power. While lower frequencies (under 2 GHz) are most common, Mercury produces powerful amplified noise modules up to 18 GHz. Noise modules are available in coaxial, surface mount and pin type construction. TTL control options are available.
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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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Jitter Noise Generator
J7000
The J7000A Series instruments high crest factor output is used as a random jitter source for serial data bus applications, including PCI Express Gen I & II, Serial ATA, and Fiber Channel. The noise source is designed for the PCI-SIG total jitter (Tj) model serial data application, but can be used for any random jitter noise application.
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Phase Noise Analyzers
The phase noise analyzer portfolio from Rohde & Schwarz offers an affordable, mid-range solution with high sensitivity and fast measurements as well as high-end ultra-high-sensitivity solutions with advanced measurements modes. Ideal for phase noise analysis and VCO tests, the industry-leading solutions enable two-path phase noise analysis with real-time cross correlation and fast VCO characterization with built-in low-noise DC sources. Additionally, high-end signal and spectrum analysis can be added into a single box.
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RF Synthesizers Modules
Holzworth Instrumentation, Inc.
Holzworth's RF Synthesizers Modules were originally designed as the internal, tunable LO test sources for Holzworth phase noise analyzer products. Due to the need for easy integration, the HSM Series designs incorporate a long list of electrical and mechanical features to satisfy the demanding requirements of today's high performance communications systems and integrated test systems. FIELD PROVEN RELIABLITY with MTBFs exceeding 240kHrs.
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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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Full Band Noise Figure and Gain Test Extenders
STG-06-S1
Full band noise figure and gain test extenders are offered to extend noise and gain measuring capabilities up to higher millimeterwave frequency ranges. These extenders are designed to interface with noise and gain test systems that have an input IF of 10 MHz to 1.6 GHz, such as the industry standard Keysight 8970A/B, N8975A and Maury MT 2075B. The noise figure and gain test extenders include a high-performance, solid-state noise source (STZ series) and a full waveguide down converter (STC series), which consists of a Faraday isolator (STF series), full band mixer (SFB series), frequency multiplier, and IF amplifier. A frequency source with an output signal in the frequency range of 10 to 20 GHz is required as a local oscillator for the down converter. The noise source is automatically powered on and off by the noise figure meter.
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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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Comb Generator
CG 50/500
The main application of Conducted Comb Generator is to quickly verify conducted emissions test setups. And the most important application is trouble conducted measurements using an ISN. reference signal source Noise Generators Signal Generators
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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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Directional Mic.
Our directional microphone helps you to find sources of noise easily and intuitively without any special knowledge.
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20 GHz Signal Source
VCO Series
The SC5510A and SC5511A are VCO-based, synthesized signal sources with very low phase noise and an amplitude control of 0.01 dB throughout its -30 dBm to +15 dBm output power range. By utilizing a unique multiple phase-locked loop architecture, phase spurs are kept below -70 dBc across the entire tuning range, even at 1 Hz step resolution. Download the data sheet to see how the impressive features and specifications of these modules make them stand out when compared to other small modular synthesizers. These 20 GHz signal sources include an additional, independent RF2 channel with a tunable frequency range from 100 MHz to 3 GHz and a tuning resolution of 25 MHz. The extra channel makes the modules suitable for either single-stage RF conversion systems or dual-stage image suppression up/down converter systems. Both modules make great general-purpose laboratory signal sources where demanding low phase noise and signal purity are required. They are both ideal choices as an integrated clock source for fast DAC and ADC applications, especially those that require variable sampling rates. Full implementation instructions, GUI, driver software, and example code are provided with each module.
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Power Supply Testers
Qmax Test Technologies Pvt. Ltd.
Power Supply Tester is an integrated package of hardware such as AC/DC Power Sources, DC Loads, Noise Measurement Unit, and DMM etc configured as per user applications, which makes it suitable for testing wide range of Power Supplies and provide economic solution for testing AC/ DC and DC/DC power supplies and converters. The Power Supply Boards that passed in the first level of screening for Go-No Go tests will undergo a second level testing. The second level of testing measures all the key parameters of the power supply such as line regulation, load regulation, efficiency etc and check whether the results are within the mentioned limit, if not declare the UUT (Power Supply Board Under Test) as a failed one.
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Noise Figure Analyzer, Multi-touch, 10 MHz to 3.6 GHz
N8973B
The N8973B high performance noise figure analyzer is designed to make fast, accurate and repeatable noise figure measurements. When paired with an SNS Series noise source and U7227 Series USB preamplifier the ENR data from the SNS and USB preamplifier data automatically downloads into the N8973B.
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Environmental Noise Monitors
Noise is one of the most complained about aspects of the environment, as not only does it have the potential to affect quality of life, it can also be difficult to monitor and therefore control. This type of noise is generally called environmental noise. There are many man-made sources of environmental noise, such as wind turbines, industrial sites, roads and traffic etc. If you are looking for equipment to measure noise in the workplace, look at sound level meters.
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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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Coaxial
NC3000
The NC 3000 Series calibrated coaxial noise sources are well suited for receiver testing, noise figure measurements, or applications that require broadband noise and fast switching times.
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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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Noise Source, 1 GHz up to 50 GHz
346CK01
The Keysight 346CK01 is the ideal companion to Keysight´s noise figure solutions when working on high frequency applications. Since it is broadband (1 GHz to 50 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source reduces a major source of measurement uncertainty, which are reflections of the test signals. This is a coaxial noise source with a 2.4 mm coaxial connector. ENR typically 20 dB at 1 GHz, decreasing to typically 7 dB at 50 GHz.
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Low-Noise Filter, 210 V / 3 A
N1298C
The N1298 Series power source accessories are a collection of low noise filters for the Keysight B2960 Series precision source / measure units (SMUs).
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Directional Microphone
MI-8100
MI-8100 is a shotgun type directional microphone which sharply catches the intended sound. This directional microphone is helpful for the removal of background noise in the simple sound source exploration and in abnormal sound detection. Flat frequency characteristic from 50 Hz to 20 kHz and sharp detection with high S/N ratio provide high sensitive detection of various sound coming from the specific direction. By combining the acoustic vibration monitor BL-1100, only the intended frequency or sound is focused and caught clearer.
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Programmable DC Power Supply
62000L Series
The Chroma 62000L Series Programmable DC power supplies have low noise linear performance and fast transient response. The units have many unique functions that are targeted for overall automated test system integration, automotive power electronics MCU/ECU, power semiconductors, wireless communications, etc. The 62000L Series is a high quality yet cost effective programmable DC Source, designed to meet the stringent requirements of the next generation of power electronics. The GPIB and USB control interfaces come standard with the 62000L Series, no additional purchase required. The 62000L Series can be easily remote controlled via either of these two interfaces. The 62000L weighs less than 2.5 kg, and its case measures 214.6W * 88.6H * 280D mm. Its light weight and compact size makes it easy to handle and stack safely.。
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OPTICAL PHASE NOISE TEST AND MEASUREMENT SYSTEM
OEwaves’ HI-Q® Optical Test Measurement System utilizes a homodyne methodology for automated measurement capable of testing ultra-low phase noise laser sources. The user friendly test system is capable of rapidly measuring laser phase noise and estimating its FWHM linewidth down to < 3 Hz without complex setup or reference lasers normally required to make such a narrow linewidth measurement.
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Battery Chargers
DC Battery ChargersStep-Up & Step-Down DC Source Chargers and Equalizers These units provide up to 600 watts to charge a 12V or 24 V battery systems (1 or 2 banks) from a 12, 24, 32 or 36 volt source. The single-board design incorporates state-of-the-art switch mode technology for unmatched efficiency and ultra-quiet operation. Multiple stages of filtering reduce radiated or conducted noise to very low levels. All Series are capable of charging up to two independent banks of batteries.
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Dual Channel Arbitrary Function Generator
TGF4000
High resolution, low jitter pulses can be generated up to 100MHz as can wide bandwidth white noise. A extensive array of modulations is provided using internal and external sources. Gated, burst and sweep modes can use internal or external trigger sources. Remote control via USB and LXI compliant LAN (standard) can be supplemented by optional GPIB if required.
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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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10 GHz Signal Source
YIG Series
The SC5503B and SC5502A are designed to meet demanding low phase noise applications. This is accomplished by employing a multiple phase-locked loop architecture as well as a YIG oscillator as the heart of its synthesizer. Frequency accuracy is provided by an onboard 10 MHz temperature compensated crystal oscillator (TCXO) which can be phase locked to an external reference source if required. These modules can be used as standalone CW signal sources or as LO sources for frequency conversion systems such as the SignalCore IQ modulators and demodulators. They are designed to meet the requirements of many modern applications such as wireless device testing, software-defined radio research, point-to-point radio, multi-channel coherent systems, and other academic and military programs.