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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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PXI Source Switching Module
40-618A-001
The 40-618A PXI Source Switching Module consists of 12 separate 4-channel multiplexers and 44 uncommitted SPST relay contacts in a single width PXI module.
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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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Video Transmitter
Model: DS-5210
The S-Band Video Transmitter is a synthesized microwave signal source providing low phase noise with a high level signal output. The unit can be set to any frequency within the band of design via a USB or RS-232/422/485 computer command. The oscillator is phase locked to an internal TCXO reference. The oscillator pro-vides a stable low noise source for video transmission.
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Source Signature Recorder
*GPS accuracy for time break collection and source equipment locations.*32-bit, high speed, ADC chip for lower noise and increased accuracy for signatures.*Operates independently of crew, including observer and shooter or operators.*Can be used with any Vibrator Control System.*Great for monitoring rental equipment and operators.*Provides accurate start times that can be used with any nodal recording system.
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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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Microwave Downconverter, 3 GHz to 26.5 or 110 GHz
E5053A
The E5053A microwave downconverter is designed to operate with the E5052A/B signal source analyzer (SSA). When configured with the E5053A microwave downconverter, the E5052A/B SSA offers exceptional phase noise sensitivity up to 26.5 GHz. Additionally, combining a pair of 11970 series harmonic mixers offers the phase noise measurement up to 110 GHz.
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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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High Voltage Linear Power Supplies Bipolar 4-quadrant, Analog/Digital/Local Control, Ultra Low Ripple/Noise
Series BOP-HV
The Kepco Model BOP 500DM and BOP 1000DM are high voltage power sources, up to 500V or 1000V, respectively. These combine the capabilities of fast programmable power supplies with a Class A output stage, which can respond bidirectionally from zero. The BOP-HV can be operated in either a "voltage stabilizing" or "current stabilizing" operating mode (selectable by a front panel switch). These power supplies offer ultra low noise and ultra low ripple at the output and are MIL-STD-461 compliant.
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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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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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Planar Doped Barrier Detectors
KRYTAR Planar Doped Barrier Detectors 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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AC and DC Current Sources
Programmable AC and DC current sources that provide precise, low noise, stable currents for a number of applications.
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160W Programming Laboratory Grade Power Supply
Source effect: *CV≤0.01%+3mV(mA) *Load effect: CV≤0.01%+3mV(I≤3A) CC≤0.2%+3mA(I≤3A), CV≤0.02%+5mV(I>3A) CC≤0.2%+5mA(I>3A) * Ripple and noise: CV≤1.0mVrms(I≤3A) CC≤3mArms(I≤3A), CV≤2.0mVrms(I>3A) CC≤6mArms(I>3A) * Protection Type: Overcurrent Protection (OCP) Overvoltage Protection (OVP) * Display accuracy: Voltage indication accuracy: ± (0.5% + 2 words)
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Noise Figure Analyzers & Noise Sources
Keysight Technologies provide a range of noise figure measurements solutions to meet your needs, from the NFA series noise figure analyzers to the noise figure measurement personalities for our spectrum analyzers. We also have a range of noise sources to complete the measurement solution.
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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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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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LED Power Driver ATS
8491
1. DC Electronic Load : Chroma 6310A/6330A Series2. Transducer Unit/Module*1 : Chroma A849101/A849102, A849103, A8491043. Time/Noise Analyzer : Chroma 80611 & 80611N card4. Sytem Controller*2 : Industrial PC5. DC Source: Chroma 62000P Series6. Digital Power Meter : Chroma 66200 Series7. OVP/Short Circuit Tester : Chroma 806128. ON/OFF Controller : Chroma 80613*1 : A849101 transfers UUT output signal to voltage signal, and measure by 84911 LED power driver measurement card (200kHz). The optional 80611N Noise card is required for 20MHz ripplecurrent measurement.*2 : The controller includes both 84911 LED Power Driver measurement card and 84903 control card.- 84911: Measure rms current, dimming current/frequency/duty, timing, power & ripple current (200kHz)- 84903 : Provide BL control signal(DC level, PWM, SM bus), and enable ON/OFF signal.C Source : Chroma 6500/61500/61600 Series
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Noise Source Family
346 Series
This series of broadband noise sources has been designed to cover the majority of measurement applications with a range of frequencies, Excess Noise Ratio (ENR) and coaxial connector types.
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Power Sensor and SNS Noise Source Cable (6.1m/20 feet)
11730C
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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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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Low Noise Pre-Amplifiers
Low Noise Pre-Amplifier and companion external low noise amplifier (LNA) are used to amplify low level microwave signals. The Pre-Amplifier contains an AC/DC power supply, internal low noise amplifier, and a bias tee to source a DC bias voltage on the RF input connector.To overcome cable loss between the test antenna and the Pre-Amplifier assembly, a remote low noise amplifier (LNA) is mounted directly onto the 10 GHz antenna. A bias tee inside the Pre-Amplifier chassis powers the remote LNA through the coax cable interconnecting the pre-amplifier and the 10 GHz test antenna.
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PNA-X Network Analyzers
Keysight's PNA-X is more than just a vector network analyzer. It is the world’s most integrated and flexible microwave test engine for measuring amplifiers, mixers, frequency converters, and other active devices. The hardware includes two internal signal sources, a signal combiner, S-parameter and noise receivers, pulse modulators and generators, and a flexible set of switches and RF access points. These hardware features provide a powerful core for a broad range of linear and nonlinear measurements, all with a single set of connections to your device under test.
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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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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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Measurement Power Amplifier
Qam
The amplifier is DSP controlled, with a very straightforward operation. Included is a white/pink noise signal generator. The internal signal module provides low crest noise signals to be able to reach high power levels from sound sources or electromagnetic shaker. External input of signal is equally possible, with spectral linearisation or without. This can be used for music, RASTI or any other signal
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Gas Filter Correlation Carbon Monoxide Analyzer
Model T300
The Model T300 measures low ranges of carbon monoxide 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 CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 14 meters. The energy loss through the sample cell is compared with the span 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 extreme sensitivity. All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information, is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.The Model T300 comes with NumaView™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software.
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Mid-Range Gas Filter Correlation Carbon Dioxide Analyzer
Model T360M
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.All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.The Model T360M comes with NumaView™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software.
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10 MHz to 55 GHz Noise Sources
CNS346 Series
The Spanawave CNS346 Series is designed for precision noise figure measurement applications. The superior VSWR characteristics reduce multiple reflections of the test signals and significantly increase the measurement accuracy of most noise figure set-ups. The CNS346 Series noise sources have broadband coverage and extremely good temperature and voltage stability, for the finest noise figure meter-compatible laboratory standards. Outputs of 6, 15.5 and 22 dB ENR are available, allowing the units to accurately measure noise figures up to 20 ,30 and 36 dB respectively.
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SNS Series Noise Source 10 MHz to 26.5 GHz (ENR 15 dB)
N4002A
The SNS series N4002A noise source was designed to measure DUT noise figures reliably and accurately up to 30 dB from 10 MHz to 26.5 GHz.
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Low Noise Op Amplifiers (≤ 10nV/√Hz)
Analog Devices’ portfolio of low noise (≤ 10nV/√Hz) op amps includes many amps with the lowest noise performance in the industry. These high speed, low distortion (1 nV or less) op amps enable better signal fidelity in the most demanding conditions, allowing system designers to achieve the lowest total system noise performance in applications with high source impedances. We feature a considerable variety of these amps with wide supply ranges and low power.
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Audio Analyzers
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.
