Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Noise Figure Meters
H5M Series
*Frequency range from 10 MHz to 4/20 GHz*Noise Ratio and Gain measurements*Frequency converter measurements with a fixed or external heterodines*Built-in thermostatic YIG preselector*High measurement speed*Extend the NFA solution up to 50 GHz with special downconverter unit*SCPI Language Compatibility
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NI-9253, 50 kS/s/ch, ±20 mA, 24-Bit, 8-Channel C Series Current Input Module
785989-01
50 kS/s/ch, ±20 mA, 24-Bit, 8-Channel C Series Current Input Module - The NI-9253 is an 8-channel analog input module for ComapctDAQ and CompactRIO systems. Each channel provides a ±20 mA input range and 24 bits of resolution at a 50 kS/s sample rate. The NI-9253 has several diagnostic features to ensure your system is operating nominally at all times with open channel detection, power supply detection, and configurable thresholds. The NI-9253 has eight LEDs to indicate the status of each channel and the power supply so that a user in the field can easily validate that the system is operating normally. The NI-9253 also features a number of programmable hardware filters. By choosing the specific Butterworth and comb filters for your application, you can significantly reduce the noise in your system.
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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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4-Channel Simultaneous Sampling Module for DAQ970A and DAQ973A
DAQM909A
The Keysight DAQM909A module enables the DAQ970A and DAQ973A Data Acquisition System to perform dynamic data acquisition for applications such as harmonic and noise distortion, power analysis, and acoustic characterization of electromechanical devices.
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Probes, Clamp-On
EM-6987 | 1 KHz – 110 MHz
The EM-6987 is capable of measuring signals and noise superimposed on power currents up to 300 A from DC to 400 Hz. Intermodulation effects on current probe output are also negligible.
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GPS/GNSS Anti-Jam Antenna
8230 AJ
The 8230AJ anti-jam antenna is a high gain (40 dB) GNSS outdoor antenna with a unique conical antenna pattern that rejects interference from the horizon. The antenna rejects signals at lower elevation angles – where most of the interference comes from – and only receives signals from higher elevation angles where the true satellites are. This way, you get all the performance and timing accuracy you would with a standard antenna plus 20 dB or more of interference rejection.It uses a three-stage low noise amplifier, a mid- section SAW, and a tight pre-filter to protect against saturation by high level sub-harmonics and L-band signals. The antenna covers GPS L1, GLONASS L1, BeiDou B1, Galileo E1, and QZSS L1.
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Pulse Generators
Pulse generators provide electronic pulses which mimic events from radiation detectors and are useful in set-up, diagnostics, and noise measurement in spectroscopy systems.
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Gas Filter Correlation CO Analyzer
Model T300U
Teledyne Advanced Pollution Instrumentation
The Model T300U Trace-level CO analyzer has been developed specifically to address the challenges of low level monitoring as required, for example, in the US NCore network. Using IR absorption with a Gas Filter Correlation Wheel, the T300U is designed to allow ultra-sensitive CO measurements while still meeting the requirements for use as a US EPA compliance analyzer.The optical bench is enclosed in a temperature controlled oven, dramatically decreasing instrument noise and drift. The objective and field mirrors in the sample cell are gold plated to maximize signal to noise performance, while a temperature-controlled Nafion dryer on the inlet minimizes water interference caused by ambient humidity changes. Periodically, the T300U seamlessly corrects its baseline by routing the sample through a heated catalytic CO scrubber. This Auto Reference function corrects zero drift and reduces the effect of interferences.
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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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Microwave Components
We are a worldwide leader in the design, development and manufacture of radio-frequency and microwave components, and our product portfolio is one of the most comprehensive anywhere in the world.Our magnetrons, performance monitors, low noise front ends, circulators, loads, limiters and receiver protectors are trusted to power every type of commercial radar application, including airborne, navigation and guidance devices, radar and sonar equipment and electronic surveillance systems.
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Fixed Source PLL DRO Replacement
ESP Series 2.25” x 2.25” x 0.6”
*Connectorized Package *Exceptionally-Low Phase Noise *DRO Replacement *Optional Internal Reference *Robust Designs Available *Optionally Hermetically-Sealed
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Industrial Vibration Sensor
IVS-500
The new IVS-500 Industrial Vibration Sensor is the key to fast acoustic quality inspection, structure-borne noise analysis and reliable pass-fail decisions. This Laser sensor measures reliably, in demanding industrial environments, without contact and therefore without wear and on virtually all surfaces. Costs and yields are therefore optimized by reducing false rejects in the production and assembly process. The simple setup and ruggedized sensor design of the IVS-500 enable a smooth integration into production test systems. Complemented with the software tool QuickCheck, Polytec offers a comprehensive solution for reliable pass/fail analysis.
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C-Band Single Channel Pre-Amplifier EDFA (SPA)
HSA4300 (With SNMP)
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HSA4300 series is a low noise pre-EDFA which designed specifically for single wavelength optic transmission system. It is installed in the front of optical receiver, used for improving the receiving sensitivity of the optical receiver, and extending the signal transmission distance.
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Sound Level Meter, 30 dB, 130 dB, 1.5 dB, 0.1 dB, 0 °C, 40 °C
72-942
Compact Digital Sound Level Meter measures less than 9" in length, including the windscreen, yet provides selectable response time and frequency weighting. It is perfect for sound system testing, speaker system measurement and environmental noise level monitoring.
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Photonics
Precision fiberoptic and free-space interfaces provide high-speed, low-jitter and low noise signal conversion, and transport of analog and digital signals.
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Digital TV Spectrum Analyzer
DS2831
Fast Spectrum Analyzer: detect and troubleshoot ingress with exceptional sensitivity of -60dBmV @ 300KHz RBW. Color-Coded Persistence Test: find transient noise hiding under upstream bursty signaling, without disrupting service. MER Measurement: up to 47 dB MER with 48 hours of statistical recording with 1 second resolution. Analog TV and SC-QAM: troubleshoot typical analog interference and distortions as well as SC-QAM performance. Time-Domain EVS Measurements: uncover interference from LTE signals under downstream QAM carriers with no service interruptions.Characterize OFDM carrier performance and DOCSIS 3.1 cable modem performance.
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Capacitance Sensor Systems
MTI Instruments offers high resolution capacitance sensors, probes and systems that generate low noise, highly accurate and high stable measurements. Our Capacitance sensor line-up offers accurate measurements for automated inspection applications such as thread quality inspection, disk drive run-out, leveling or flatness measurement, lens alignment, tire run-out and bulging. Our Accumeasure capacitive sensors offer large stand-off distance that includes single and multiple channel rack systems that connect up to 10 capacitive sensors or capacitance probes with individual analog measurement outputs. We also offer cost-effective customized capacitive sensor amplifier board and probe system for easy integration. Our inspection systems linearity exceeds 0.01% full scale measurement (FSM) and resolution to sub nanometers.
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Ku Band Gain Control Amplifier
Expanding Teledyne RF & Microwave's existing line of high frequency amplifiers, microwave gain controllable amplifiers are designed and biased for critical performance applications. One example covers 10-13 GHz, offers 45 dB unattenuated small signal gain with 15 dB attenuation range. Typical gain flatness is ±0.5 dB, +35 dBm third order intercept point, +22 dBm minimum 1-dB gain compression, and 3.5 dB unattenuated noise figure 4.5 dB at full attenuation. This is only one of a series of microwave controllable amplifiers currently in production.
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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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96-CH 12-Bit 3 MS/s Ultra High Density Analog Input PXI Module
PXI-2208
ADLINIK PXI-2208 is an ultra high-density, highperformance analog input module. This device can sample up to 96 AI channels with various gain settings and scan sequences, making it ideal for dealing with ultra high-density analog signals with various input ranges and sampling speeds. These devices also offer a differential mode for 48 AI channels to achieve maximum noise elimination. The PXI-2208 also features analog and digital triggering and 24-CH programmable digital I/O lines. Like all the other members in the PXI-2000 family, the PXI-2208 is able to perform analog input at full speed. Multiple modules can also be synchronized through the PXI trigger bus. The auto-calibration feature adjusts the gain and offset to a specified accuracy, eliminating the need to calibrate the modules by adjusting trimpots.
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Low Phase Noise Amplifiers
Pasternack's low phase noise amplifiers cover select frequency bands ranging from 1.5 to 18 GHz with residual phase noise levels as low as -180 dBc/Hz @ 10 KHz offset. Additional performance specs include small signal gain ranging from 9 to 14 dB, with typical noise figure of 5.5 dB. Psat levels for these amplifiers range from +16 to +25 dBm with Output IP3 levels as high as +34 dBm. All models feature single DC voltage supplies and input/output RF ports are internally matched for 50 ohms with DC blocking capacitors. These compact module assemblies require no external components and are available in rugged Kovar metal drop-in packages that are gold-over-nickel-plated and support field replaceable SMA connectors. All models are EAR99 and guaranteed to meet MIL-STD-883 test conditions for hermeticity and temperature cycle.
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Thick Film Passive Element
GBR-181
GBR-181series resistors are made in a thick film technology, or ceramic substrates (Al2O3) - 96&). Thick film resistors are characterized by a higher stability, and lower noises than a typical carbon resistors. The whole of resistor is encapsulated with epoxy resin by fluidization process. GBR-181 series elements are used both for general, and professional applications. Other values of resistance, and tolerance (up to 0.1%) are available on request.
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Bench Power Supply, Single, Adjustable, 1 Output, 1 V, 60 V, 250 mA, 1.6 A
72-8340A
The 72-8340A is a 100W switching mode laboratory grade Power Supply with current limiting control, is designed with the objectives of high accuracy, compactness and easy portability. 4 digit display LCD of voltage and current for high precision. The slim tower housing makes it ideal for tight work bench. It is light and conveniently portable with a collapsible handle. The large and illuminated LCD display provides clear and sharp readings even under dim light. The output power on off switch allows safe and handy operations. The tracking OVP (output over voltage protection) ensures a better and tighter protection to voltage sensitive loads. It has good line and load regulations, high efficiency, low ripple and noise that are typical of advanced switching mode power supply.
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Laboratory EM current meter / water level and wave height meter
ACM2-RS and ACM3-RS are 2-D and 3-D electro-magnetic current meters for laboratory experiments. The models provide digital output, a high-speed sampling rate and insusceptibility to electro-magnetic noise. ACH-600RS is a highly sensitive capacitance water level meters. With the new system, a maximum of four different sensors can be connected to the compact interface unit, enabling simultaneous recording on a personal computer. Additionally, the system can provide analog output as well as necessary. While conventional water level and wave height meters cannot be used near velocity sensors, our instrument can be as near as 5 cm without increasing noise, due to its special isolated circuit. The result is an innovative system that is capable of achieving highly accurate data.
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Digital Sound Level Meter
DL7103
Easy measurement of sound level for health and safety compliance, with regard to nuisance noise levels and compliance with warning indication for fire alarms.
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SSA Signal Source Analyzer, 10 MHz to 7 GHz, 26.5 GHz, or 110 GHz
E5052B
RF Input frequency range: 10 MHz to 110 GHz Analysis offset frequency range: 1 Hz to 100 MHz Phase noise measurement with ultra low noise floor and a cross-correlation method Frequency transient capture range: up to 80 MHz in narrow band, up to 4.8 GHz in wide band
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5uH Line Impedance Stabilisation Network LISN - CISPR 25
TBOH01
The TBOH01 5H LISN is a device required to setup conducted noise measurements of DC-powered devices. It is designed to be used for EMC pre-testing in the frequency range of 150kHz to 110 MHz.
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Audio Line Drivers and Receivers
Analog Devices audio line driver and receiver solutions feature differential-output buffer amplifiers and differential input buffer amplifiers to support a wide range of applications. By using low noise thermally matched thin film resistors and high slew rate amplifiers, these parts maintain the sonic quality of audio systems by eliminating power line hum, RF interference, voltage drops, and other externally generated noise commonly encountered with long audio cable runs. Applications involving this product portfolio include ADC drivers, high performance audio, sine/cosine encoders, and other professional and consumer uses.
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Thin Film Based Thermopile Detector: 10 Channels
10 Channel
A ten-channel thin-film thermopile in a TO-8 package. Each active area is 3.16mm x 0.4mm and offers low noise voltage. Internal aperture minimizes channel-to-channel crosstalk while increasing sensitivity.
