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Noise Sources
create signal disturbances for the purpose of noise instrument calibration.
See Also: Pink Noise, Noise Generators
- Applied Instruments, Inc.
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RF Noise Source
NS-3
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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Noise Sources
NC1128A
This noise source by Noisecom produces white Gaussian noise up to +13 dBm. It contains a hermetically packaged noise diode that has been pre-selected for special performance characteristics. This module is ideal for many different applications including CATV, Secure communications, Jamming systems, OC-192 Testing, EW & EC.
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Multi-Channel, Programmable Current Source
CS-48-100
The Model CS-48-100 is a multi-channel, programmable current source. Developed for both semiconductor and digital superconductor electronics, it is computer-controlled and features 48 low noise current source outputs. Each source output has the capability to both set and read back currents and can be set to a zero current high Z mute state. Each of the 48 sources are optically coupled for control and are sourced from their own secondary winding for complete galvanic isolation. The device consumes a maximum of only 80 W and handles a maximum load current of 4.8 A total over all outputs. Operating over a range of 0-100 mA on each channel, the device features accuracy of +/-25 ?A. The mute state can be set thru a rear panel interlock or from the front panel button for maximum circuit protection. The unit can be mounted in a standard-sized rack.
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Power Sensor and SNS Noise Source Cables (3 m/10 feet)
11730B
The Keysight 11730 series power sensor cables are used with the 8480 and E-series power sensors (except the E9320 family of peak and average sensors). These cables are designed to reduce RFI effects on low power readings with an improved shielding design in the cable itself. Cables may be ordered individually or in pairs in any combination desired for single and dual-channel measurements.
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Multifrequency Clock Synthesizer - PCIe
Model 7890
Simultaneous synthesis of up to five different clocks, Eight SMC clock outputs, Ideal for A/D and D/A converter clock sources, Typical phase noise: -125 dBc/Hz @ 1 kHz offset
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DRO / PDRO
Panda Microwave customized up to 40GHz low phase noise (DRO or PDRO) , Phase Locked Dielectric Resonator Oscillators (PDRO) take advantage of the small size, low phase-noise and high efficiency, including PDRO and DRO. Phase Locked Dielectric Resonator Oscillators (PDRO) are used widely in today’s electronic warfare, radar and communication systems. They find use both Commercial and Military communication systems where demanding performance, high reliability and cost are critical. The phase locked oscillators utilize ceramic coaxial resonator and ceramic dielectric resonator fundamental frequency sources with low phase noise performance. The design of the Phase Locked Oscillators is based on sampling phase detector technology, which provides the comparison frequency at the same frequency as the fundamental frequency output.
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Signal Analyzer
bsw TestSystems & Consulting AG
The simplest way to measure the phase noise is to compare the Device-Under-Test (DUT) to the source of a spectrum analyzer. With the SA set at the same frequency as the OUT, you see the sum of the SA's and DUT's sideband-power spectrum on the SA display. It is a simple and straight forward method well suited for free running VCO's where the SA is easily an order better.You can improve on this method by establishing a Phase Lock (PLL) between the DUT and the Local Oscillator and create a zero-IF or base-band spectrum analyzer system.
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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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Automated Fibre Loss Test Set
LTS-1500
The LTS-1500 is a small, rugged automated fiber optic loss test set that characterises singlemode fiber links at wavelengths of 1310, 1490 and 1550 nm. It is comprised of a sensitive InGaAs based optical power meter calibrated at six wavelengths with better than -75 dBm noise level plus a stabilised laser light source with up to three selectable wavelengths.
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YIG Oscillators
With a 30 year heritage in YIG technology, Teledyne RF & Microwave has unsurpassed capabilities as your single source for YIG Oscillators and offers 'best in industry' low phase noise. Teledyne has a large, self-contained YIG manufacturing and R&D infrastructure that ensures continuous YIG innovations, including the industry's only YIG filter that "locks" to a desired signal.
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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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Refrigerant Leak Detector w/ Gooseneck
RLD10
UEi Test & Measurement Instruments
The RLD10 makes pinpointing leaks as easy as one two! Detect leaking refrigerant using the high sensitivity mode then switch to the low sensitivity mode to pinpoint its source. If background noise makes the audible tic hard to hear, you can count on the color scaled LED indicators. With the RLD10 you'll get the latest in refrigerant detection at a great price.
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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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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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Noise Test
Noise testing is conducted to determine if materials can withstand external noises generated by various sources. It also includes air-borne and structure-borne noise measurements.
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Mid-Range Gas Filter Correlation CO2 Analyzer
Model T360M
Teledyne Advanced Pollution Instrumentation
The Model T360M CO2 analyzer measures Carbon Dioxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high-energy IR light source is alternately passed through a CO2 filled chamber and a chamber with no CO2 present. The light path then travels through the sample cell, which has a folded path of 1.28 meters.The energy loss through the sample cell is compared with the reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing excellent performance over a wide concentration range, making this instrument an ideal choice for CO2 reporting requirements associated with dilution CEMS.
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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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Ultra-Low Noise Filter, 42 V / 105 MA, 50 Ω
N1298B
The N1298 Series is a collection of low noise filters for the Keysight B2960 Series 6.5-digit low noise source.
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High-Density Precision SMU (100 PA, 30 V)
PZ2130A
The Keysight PZ2130A is a high-channel density precision source / measure unit (SMU) with 5 channels per module that saves space at a low cost per channel for a wide range of applications requiring numerous precision power supplies. Its seamless current measurement ranging function eliminates the time it takes to change the range and expands the dynamic range to cover multiple measurement ranges, which reduces test duration. These capabilities make the PZ2130A suitable for applications that require numerous precision power supplies, such as semiconductor reliability tests and integrated circuit (IC) tests. The Keysight PX0107A low noise filter adapter lowers its voltage source noise level, which makes the PZ2130A suitable for noise sensitive applications such as quantum computing as well.
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Noise Source
MNS-1
Matrix Test Equipment Incorporated
The MNS-1 is a shaped noise source that can be used toemulate 2 bands of digital carriers. While it does not havethe necessary attributes to generate a constellation, it doesmimic the loading of QAM carriers. The MNS-2 featuresremotely controllable 6 MHz wide notch filters to allowintroducing a QAM carrier capable of generating a constellationand enabling measurement of Modulation Error Ratio (MER) andBit Error Rate (BER).
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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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Audio Analyzer
1121A
The Model 1121A audio analyzer provides fast, accurate measurements including frequency, AC or DC level, distortion, SINAD and signal-to-noise ratio. It also includes an audio source providing accurate low distortion signals over wide frequencies and level ranges.
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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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Analog Noise Generator
PNG7000
The PNG7000A Series instruments generate white Gaussian noise and provide a summing input to control signal-to-noise (SNR) or carrier-to-noise (CNR) for bit-error-ratio (BER) testing. The output can also be used as a source for Jitter applications.
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Comb Generator
CG01
The main application of Comb Generator is to quickly verify conducted emissions test setups. And the most important application is trouble shooting Open Area Test Sites(OATS).An OATS must be completely calibrated before it is put into service. reference signal source Noise Generators Signal Generators
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VECTOR-GUN HANDHELD DIRECTION FINDING ANTENNA SYSTEM
HFDF
National RF's Type HFDF active directional antenna system consists of a high gain RF amplifier coupled to a tunable Faraday shielded loop antenna. Several loop antenna assemblies are available to provide coverage of frequencies in the HF and low VHF spectrum. Due to the nature of a Faraday shielded loop, the antenna exhibits a sharp null through the diametric center of the loop. This null is used to determine the direction of incoming radio signals or to locate electrical noise being radiated from some source. The internal high gain amplifier is used to compensate for the inherent inefficiency of the actual loop at the operating frequency. Overall, the system dynamic response is about +6 dB as compared to the dynamic response of a dipole. To aid in the direction finding process on strong signals, an internal 30 DB attenuator is provided. As the loop antenna presents a bi-directional response, tri-angulation may be required to eliminate the ambiguous signal direction. The line of site of the incoming signal is determined by listening for a signal null on the receiver or by watching the receiver’s S-meter.
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Transformer Preamplifier
SR554
Stanford Research Systems, Inc.
The SR554 is a low-noise, transformer-coupled preamplifier optimized for source impedances between 0.05 Ω and 1 kΩ. With an input noise of only 0.1 nV/√Hz, the SR554 can be used in a wide range of low-noise applications.
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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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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.
