Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Cryocoolers
DS Mini
The DS Mini cryocooler brings gas bearing technology to the mini-cryocooler market. The DS (Dual Split) features dual-opposed pressure wave generator pistons and a split cold head to reduce exported vibration and acoustic noise. The optional passive balancer will further reduce cold head vibration for sensitive applications. Both the cold head and wave generator can be mounted in any orientation. Using gas bearings in the pistons as well as the displacer, the DS maintains the core technologies of the well-established integral CryoTel MT, CT and GT cryocoolers. The DS Mini represents an advantage over flexure bearings due to its higher power density, while still offering a longer lifetime compared to rotary compressors and contact seals.
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Powered VME64x Crates
6U VME64x 195-x Mini
The VME195-x mini crate is the perfect choice for small setups with only a few VME64x modules. The crate offers 9 VME64x slots in a compact designed chassis with integrated low noise power supply and cooling fan. The mini crate can be used on the desk either as a desktop or up-right unit or be installed in a 19” rack.
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Optical Transimpedance Amplifiers
Analog Devices optical transimpedance amplifiers offer a complete, high performance, single chip solution for converting photodiode current into a differential voltage input. Supporting data rates from 155 Mbps to 11.1 Gbps, our transimpedance amplifiers are ideally suited for data communications and telecommunications applications supporting lay protocols including 1×, 2×, 4×, and 8× Fibre Channel, 10GBASE-LX4, SONET/SDH up to OC-192 with FEC, and 10 Gigabit Ethernet. Our transimpedance amplifiers feature low input referred noise current, high input current, and low power dissipation.
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Fire Alarm Testing Kit
05NK005
The simple budget kit for testing fire alarm systems and carrying out noise assessments in companies without a definite noise problem. Featuring a choice of Class 1 or Class 2 sound level meter with calibrator in a handy case.
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Digital USB Sensor Interface AC,DC, IEPE
ROGADAQ2
The RogaDAQ2 USB DAQ is developed for highly accurate measurements in the T&M and also for NVH measurements. This USB Front End is optimized for noise and vibration measurements with 2 channel IEPE (ICP®) sensor supply.
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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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PXI/PXIe RF Switch, Hex SPDT, 3GHz, 50Ω, SMB
40-870A-006
The 40-870A-006 (PXI) and 42-870A-006 (PXIe) are 50Ω RF switches with 6 separate SPDT relays in a single slot. They have low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. The switch banks been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz. The injection of noise and unwanted signals into the signal paths of the 40/42-870A has been minimized by careful attention to the mechanical and electrical design.
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Active Differential Probe, 100 kHz to 12 GHz
U1818B
The Keysight U1818B 100 kHz to 12 GHz active differential probe makes it easy to perform high frequency in-circuit measurements using network, spectrum and signal source analyzers. With flat frequency response, low noise floor, and direct power from instrument connection, the U1818B allows measurements to be made while taking full advantage of Keysight's RF analyzers dynamic range.
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Real Scene Lighting
LightSTUDIO
Image Engineering GmbH & Co. KG
Test charts are used to test digital cameras and to perform objective measurements. But there are certain aspects in testing a camera that require a real scene. One of these aspects is the correct white balancing for different types of illuminants. Another aspect might be the determination of the visual loss of detail due to noise reduction or the amount of noise in an image.
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RF Architectural Shielding Products
EMI (Electromagnetic Interference) is often used interchangeably with RFI (Radio Frequency Interference). However, EMI can be any frequency of electromagnetic noise, whereas RFI is a relatively narrow range of electromagnetic noise on the EM spectrum. EMI Shielding can be used to mitigate electric and magnetic radiation across various spaces. Radio Frequency (RF) Shielding can be used to mitigate RFI with specifically designed enclosures that can block RFI. As well, RF Shielding can include application of RF Shielding paints, fabrics, and other materials.
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Analog-To-Digital Converters
Teledyne e2v has been innovating data converter technologies for over 20 years and offer a range of analog-to-digital converters that feature:Latency as low as 5 nsUp to 4 channels at microwave frequenciesLowest noise vs. performance on the market at microwave frequenciesThe cutting-edge technology packed into Teledyne e2v's data converters allow our customers to significantly simplify designs with licence free, standard and customized solutions.
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HandyScope HS6-DIFF: 200 MS/s, 250MHz BW, 4 Channel (256MS/ch), USB Differential Digital Storage Oscilloscope, Spectrum Analyzer, Voltmeter, Transient Recorder
HS6-DIFF-200XM-W5
The only oscilloscope in the world that has:- SafeGround, differential input channels that can be switched to single ended.- CMI interface.- USB 3.0 interface, 5Gb/s data transfer- Lowest noise
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Signal Generators
ZTX-Series
RPG's Signal Generator Extenders allow high performance frequency extension of microwave sources into the THz range. The available models cover a Frequency Range from 50 GHz up to 1.1 THz. These modules combine high test-port power with low phase noise to offer exceptional performance. Contact RPG to discuss Signal Generator Extenders configurations that will gain the best performance for your application.
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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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Signal Processor Board
MS 1532
- Frequency coverage from 5 kHz to 30 MHz in 1-Hz steps- High dynamic range: +30 dBm 3rd-order intercept typical- Digital filtering provides 58 IFBWs from 56 Hz to 8.0 kHz with exceptional shape factors- AM, Synchronous AM, FM, CW, USB, LSB & ISB detection modes standard- Tunable notch filter- Fast, flexible scanning with 100 memory channels- Large readable LED displays & user-friendly controls- Noise blanking & pass band tuning- Internal switchable preamplifier & attenuator- Operator-selectable RS-232, RS-485, or- RS-422 remote control- Viretx 5 FPGA based design (Two virtex for image processing)- LPC2468 ARM 7 Processor based design- MIL1553B and RS485 Interface- Two High speed 14 bit ADC (125MSPS) for I & Q Sampling- Direct sampling 2-30MHz- Audio CODEC- Conduction Cooled Board
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RF Test Spectrum Measurements over CPRI
Integris 3000
Most modern cell tower network configurations place the Remote Radio Head (RRH) at the top of the tower and the baseband unit(BBU) at the bottom of the tower. While this configuration is advantageous for both computational efficiency and mitigation of RF loss across the cable, it means the only place along RF can be accessed is at the top of the tower. This forces field technicians to have to climb the tower to measure and debug RF noise problems.
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Low Phase Noise Amplifiers
Macom Technology Solutions Holdings Inc.
MACOM is committed to an expanding portfolio of low-phase noise (>150dBc/Hz @ 1k Hz offset) amplifiers for critical signal generation applications in test and measurement and defense. These offerings complement our line of NLTL GaAs comb generators.
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sbRIO-9236, Non-Enclosed, 10 kS/s/channel, 350 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module
781580-01
Non-Enclosed, 10 kS/s/channel, 350 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module - The sbRIO‑9236 measures dynamic strain on all channels simultaneously, allowing for synchronized, high-speed measurements. This capability is important for applications, such as impact tests, that require comparison across many channels at a particular instant in time. The sbRIO‑9236 includes built-in voltage excitation for quarter-bridge sensors. It also has 60 VDC isolation and 1,000 Vrms transient isolation, providing high‑common‑mode noise rejection and increased safety. Non-enclosed modules are designed for OEM applications.
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Mixed Signal Oscilloscope: 25 GHz, 4 Analog Plus 16 Digital Channels
MSOV254A
25 GHz analog bandwidth (upgradable)4 analog plus 16 digital channels Capture a longer signal trace with up to 80 GSa/s sample rate and 2 Gpts of acquisition memory Get the best signal integrity with the low noise floor (1.73 mVrms at 50 mV/div) and lowest jitter measurement floor (100 fs)See better measurement accuracy with ENOB values in excess of 5.5 and a SFDR exceeding 50 dBC Access the broadest range of jitter, trigger, analysis and protocol tools (featuring Precision Probe)
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Multi-Channel Vector Signal Generators
875
Berkeley Nucleonics Corporation
The Model 875 is an ultra-fast-switching vector-modulated signal source covering a continuous frequency range from 10 MHz to 40 GHz. The Model 875 offers switching speeds as fast as to 200ns, enables ultrafast CW frequency sweeps, chirping, intra-pulse modulation and pulse shaping, all with very low phase noise. A high-performance internal I/Q modulator enables customized modulation waveforms and supports dedicated modulation schemes such as avionics modulations. This newly engineered design couples extremely deep memory and wideband capabilities - making complex modulation affordable and easy to program.
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Power Supplies
CM-300
The CM-300 is perfect for those with smaller computer cases tiny in size, but huge in effectiveness with an anti-corrosive nickel plated chassis. Within this power supply is an 80mm silent cooling fan designed to cool at maximum efficiency with the lowest noise level. And to power your CPU, the CM-300 comes with an 8 pin Xeon connector ready in a tube-tide design to keep all your wires tidy. The CM-300 is the ideal combination of power efficiency in a sleek body kit.
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Bluetooth Enabled Signal Conditioners I/O Modules
microBlox
Acromag's microBlox uB Series I/O modules offer a compact, high-performance solution for interfacing sensors and field devices with data acquisition systems. uB signal conditioning modules are ideal to isolate, filter, convert and amplify a wide variety of signal types for test, measurement and control systems. Just plug uB modules into 4, 8, or 16-channel backpanels in any mix for a high-density analog I/O interface. Channel-to-channel isolation provides optimal noise and surge protection from ground loops, spikes, and high common mode voltages.
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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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HFC 7 Ways Return Path Optical Receiver 1 Way Reverse Optical Transmitter
HR2071A, HR2071B
Hangzhou Huatai Optic Tech. Co., Ltd.
HR2071 series of HFC seven-way return path receiver, one way reverse optical transmitter, mainly used at the head-end to convert upstream optical signal to RF signal at the user side. Moreover, send back the data at sub-HE to main head-end through one way of DFB return path transmitter. Eight independent units integrated into a 1RU 19" casing to provide service for HFC network terminal of ONTs. The receivers’ low noise design of -22dBm receive sensitivity, allow to supply service to farther distance. There are two versions of this receiver. HR2071A with LCD on the front panel, HR2080B without LCD. All receivers are temperature tolerance type can be installed in any network surroundings including out-door type. Both of these two types can adopt SNMP function, which can control the front panel to realize optimization work at the head-end and remote installment.
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Voice Quality Solutions
Wireless networks can impair voice, video, and data quality by various means including poor mobile phone quality, voice compression and decompression algorithms, video compression and decompression algorithms, delay, loss or gain in speech levels, noise, acoustic and landline echo, and other distortions. GL provides a compact and portable solution for Wireless Devices, and Mobile Radio testing.
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Switch Mode Power Supplies-Air Cooled
The MS-Series features constant voltage and current control with easy, quick installation and maintenance. Modular versions easily increase the output by means of series or parallel connection. All models have DC short circuit protection. With forced air-cooled models, the cooling air quantity is controlled in relation to the load reducing contamination and noise levels.
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PXI/PXIe RF Multiplexer, Dual 4-Channel, 3GHz, 50Ω, MCX
42-872A-102
The 40-872A-102 (PXI) and 42-872A-102 (PXIe) are 50 Ohm 4 to 1 PXI RF multiplexers with 2 banks in a single slot. They have low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. Each MUX has been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz with each path having a nominally equal insertion loss. The injection of noise and unwanted signals into the signal paths of this RF MUX has been minimized by careful attention to the mechanical and electrical design.
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Switch Mode Power Supplies-Water Cooled
The MSW Rectifiers are based on Switch Mode Technology. This reliable technology assures excellent quality DC currents with a ripple of < 3% and a control accuracy of less than 1%.The MS-Series features constant voltage and current control with easy, quick installation and maintenance. Modular versions easily increase the output by means of series or parallel connection. All models have DC short circuit protection. With forced air-cooled models, the cooling air quantity is controlled in relation to the load reducing contamination and noise levels.
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Test Accelerometer Sensitivity And Noise Test
Accelerometer Test Unit
*Quick and Accurate Accelerometer Test*Battery operation*All tests use 32-bit resolution A to D Converter*All data downloaded to PC via Ethernet link*Records all data to a flexible easy to use database*Records time and date of tests
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High-Voltage, High Current I/O Module
Model JI-4516
The JI-4516 module is a versatile, easy-to-use device for adding high-voltage, high-current digital I/O capability to a computer system via a USB connection. The module is comprised of 8, low-side power MOSFET switches, and 8 high-voltage inputs. I/O ground isolation eliminates ground-loops and provides protection from noise and switching transients during high-current load switching. The JI-4516 is available as either a desktop unit or low-cost OEM board.
