Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Mobile Sound Ranging Array
MSRA
In a peer to peer conflict, weapon location radars used for counter battery purposes will be extremely vulnerable.With aerial/satellite based surveillance available for the opponent, radars will be seen. With electronic warfare means being omnipresent, radars will be triangulated and jammed. There is an urgent need for 24/7 persistent surveillance with (preferably) passive sensors. With mobility being the key for survival on the battlefield, rapid re-deployable, or even truly mobile sensor capabilities are required. Therefore, the traditional sheer sound pressure based sound ranging capability becomes obsolete, as the triangular footprint of the sensor nodes is too large to be installed on a manned, or unmanned platform. With the trend towards longer ranges and “shoot and scoot” drills, the concept of capturing the muzzle blast noise becomes questionable, as the speed of sound is too slow to provide timely localizations.
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PCIe High-Speed Digitizer
U5310A
The U5310A is a two channel PCIe, DC coupled 10-bit signal acquisition card providing sample rates up to 10 GS/s with 2.5 GHz bandwidth for use in a variety of advanced imaging and processing systems. Featuring unique spurious-free dynamic range (SFDR) and signal-to-noise ratio (SNR) performances in high frequencies, especially at 250 mV full scale range (FSR), the U5310A ADC card is suited for embedded OEM applications requiring signal acquisition at wide bandwidth and high dynamic range.
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ELT STALKER Vector-finder
VF-121
The Vector-Finder Types VF-121 and VF 121A are unique in the Vector-finder series of direction finding antennas. They incorporate a proven design, electro statically shielded loop sensing element with modern solid state low noise analog and digital technology to allow detection and location of aircraft band signals. Both the VF-121 and the VF 121A incorporate a unique digital modulator which allows the user to more easily home-in on unmodulated carriers. Such cases occur at airports when transmitter may be accidentally keyed on during aircraft overnight layovers. The VF-121 is specifically designed to be used on airport premises where signal strengths are high. To compensate for very strong signals, an integral attenuator is also incorporated to allow the user to operate the unit close-in to aircraft. The VF-121A differs in that a high gain, low-noise preamplifier is utilized with the sensing element in order to hunt signals that may be weak or at a distance. The unit is ideally suited for the location of ELT transmitters in the field. Both units are tunable over the 118 MHz to 130 MHz aircraft frequencies and interface directly to the user’s aircraft band receiver or transceiver via the antenna jack. With the antenna system connected to the receiver, the user will hear the desired signal. If the signal is unmodulated, the digital modulator will generate a tone on the carrier. When the handheld unit is rotated about, an audible null on the received signal or the generated tone will be heard. This null aligns with the axis of the equipment case and represents the direction of the received signal. This direction may be read from the black dial compass mounted on the top of the enclosure. As the response is bi-directional, triangulation may be used to determine the true bearing when the true direction is not known.
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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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Power Supply 600W
UEP10M66 / CEP10M66 -
The UEP10M66 series is a linear regulated plug-in power supply for use in CERN type NIM and CAMAC crates with 600W power output for applications with extreme +/-12V loads. This high precision and lowest noise power supply is designed as a very compact unit with extremely low volume to power relation.
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WavePro HD Oscilloscopes
WavePro HD Series
WavePro HD High-Definition oscilloscopes employ unique Teledyne LeCroy HD4096 technology to achieve 12-bit resolution at up to 8 GHz bandwidth, for the lowest noise and unmatched signal fidelity. Up to 5 Gpt of highly responsive acquisition memory gives more visibility into system behavior, and the exceptional analysis toolbox enables deep insight.
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Power Supply QP305E 2x30V/5A
*On / Off switch output section*4 independent regulated DC output*Independent serial and parallel output*Constant voltage and current*Low ripple and noise*Four digit LED displays three*16 hours at full loadd
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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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NI-9203, 200 kS/s, ±20 mA, 8-Channel C Series Current Input Module
779516-02
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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C-Band DWDM Line Amplifier EDFA (WLA-C)
HWA4200 (With SNMP)
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HWA4200 series, is designed for C-Band 44 waves or 88 waves DWDM system design Line Amplifier gain flatness. Products using the most excellent optical performance, the most advanced electronic control technology and comprehensive software features, has a wide operating wavelength range, Low noise, excellent gain flatness characteristics and transient characteristics.
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PXI Dual 4 to 1 RF MUX MCX 75 Ohm
40-832-102
The 40-832-102 is a 75 Ohm 4 to 1 RF MUX with 2 banks in a single PXI slot. It has been designed to exhibit 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 design of the 40-832 minimizes the injection of noise and unwanted signals into the signal path by careful attention to the mechanical and electrical design.
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UXA Signal Analyzer, Multi-touch, 3 Hz to 50 GHz
N9040B
See the real performance of your design with wider (to 1 GHz), deeper views of the most challenging signalsMeasure the spectral purity of your design with industry-leading phase noise and 78 dBc spurious-free dynamic range across 510 MHz bandwidthExtend RF input frequency up to 110 GHz with Keysight smart mixers; to THz with 3rd party solutionsCapture intermittent signals with gap-free real-time spectrum analysisCapture lower-level spurious signals with an improved DANL low noise path
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WaveLink Dx20-PT Adjustable Positioner Tip Kit
Dx20-PT-KIT
- Choice of 4 GHz or 6 GHz bandwidth models- Up to 5 Vpk-pk dynamic range with low noise- ±3 V offset range- Low loading and high impedance for minimal signal disturbance- Ideal for DDR2, DDR3, LPDDR2- Deluxe soft carrying case- Innovative QuickLink architecture- Wide variety of tips and leads-- Solder-In Lead-- Optional Positioner (Browser) Tip-- Quick Connect Lead-- Square Pin Lead-- HiTemp Solder-In Lead
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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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Simultaneous Sampling A/D Converters
Analog Devices simultaneous sampling precision A/D converters offer two to eight discrete ADCs in a single package, allow two to 12 channels, and span resolutions from kSPS to 5 MSPS. Providing the industry-leading noise, linearity, and dynamic range performance, ADI has a simultaneous precision converter to meet your speed, power, and size needs. Simultaneous sampling ADCs enable users to convert multiple signals concurrently and preserve phase information.
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47~862MHz Four outputs FTTP CATV optical receiver
P9428
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai P9428, the operating bandwidth of 47 ~ 862MHz, is a low power, high performance, cost-effective triple play, FTTH CATV optical receiver. Products with high sensitivity optical receiver tube and Huatai special low noise matching circuit..
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Broadband Planar Tunnel Diode Detectors
KRYTAR Broadband Planar Tunnel Diode 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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Acoustic Calibrators
When you're ready to take noise measurements, it's strongly recommended that you perform a field calibration using an Acoustic Calibrator. You should calibrate your sound meter before you start to measure, and then once you've finished you should perform a reference check against the calibrator and make note of any drift that has occured. You can find out more about performing Field Calibrators by reading this post and watching a short video.
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NI-9205, ±10 V, 250 kS/s, 16-Bit, 32-Channel C Series Voltage Input Module
780173-01
±10 V, 250 kS/s, 16-Bit, 32-Channel C Series Voltage Input Module - The NI‑9205 performs single-ended or differential analog inputs, with four programmable input ranges for each. It is an effective combination of channel count and speed at a low price for an economical multifunction system. You can choose from four programmable input ranges. To protect against signal transients, the NI‑9205 includes up to 60 V of overvoltage protection between input channels and common. In addition, the NI‑9205 also includes a channel-to-earth ground double isolation barrier for safety, noise immunity, and high common-mode voltage range. It is rated for 1,000 Vrms transient overvoltage protection.
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Infiniium V-Series Oscilloscope: 25 GHz, 4 Analog Channels
DSAV254A
25 GHz analog bandwidth (upgradable)4 analog 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 Improve your testing with the broadest range of jitter, trigger, analysis and protocol tools (featuring Precision Probe)
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Bench/System Precision Linear Regulated DC Power Supply With Digital Control, Single Or Triple Outputs, 105 To 242 Watts, With/without Remote Interfaces
QL Series II
Advanced dc power supplies, single or triple outputUp to 112 watts per outputVery high precision, very low noise, excellent dynamicsAdvanced user interface with numeric and rotary controlMultiple voltage/current ranges for increased flexibilityMultiple non-volatile memories for power supply set-upsSwitchable remote sense provides perfect load regulationComprehensive protection including OVP and OCP tripsCompact bench footprint; modular width for rack mountingAuxiliary output fully variable 1.00V to 6.00V at 3A with selectable voltage and current metering (T models)Bus programmable via USB, RS232, GPIB or LAN (P models)LAN interface is LXI compliantDuplicate power and sense terminals at rear (P models)
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CATV Multi-ports Output High Power Full Function Optical Amplifier Module
HHOA-F5000
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HHOA-F5000 series is a kind of multi-port output, high power, full-function optical amplifier module and is suitable for CATV with low noise. Its total output power is 27~40dBm (0.5W~10W) optional and its optical output port can reach to 64 pieces at most. The module has standard RS232 interface, adopts high reliable and low power consumption design as well as adopts APC, AGC control mode. The product has two series: The output power of Huatai HHOA-F5000 high power optical amplifier module can be chosen in the range of 27dBm~40dBm. According to different output power, Huatai HHOA-F5000 adopts two latest technical solutions. One is to use single mode high power 980nm pump laser with cooling and EDF, multi-pump synthesis technique. The other is to use multi-mode high power 980nm pump laser without cooling and double-clad Er-Yb doped fiber-optic technology. It provide a whole set of high reliability, low cost, low noise and low power consumption solutions for the application of high power, multi-port output amplifier. It can be widely used in CATV head-end or FTTx distribution network.
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Acoustic Noise Generator
ANG-2200
The ANG-2200 Acoustic Noise Generator creates a perimeter of noise that defeats acoustic leakage eavesdropping devices including wired microphones inside walls, contact microphones, audio transmitters located in AC outlets, and laser/microwave reflections from windows.
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RF Components
Using a Vector Network Analyzer (VNA) for RF component testing for design and manufacturing is based on how the component performs. The analyzer is used in multiple ways from design to manufacturing to tuning, field monitoring and maintenance of antennas, filters, mixers, amplifiers, circulators, isolators, and other RF components. Key considerations component designers should pay attention to when finding an analyzer that fits their needs is a great dynamic range, low trace noise, and fast measurement speed.
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PXIe-5654, 250 kHz to 20 GHz, PXI RF Analog Signal Generator
783127-02
PXIe, 250 kHz to 20 GHz, PXI RF Analog Signal Generator - The PXIe-5654 features a combination of exceptional phase noise and frequency tuning time. These features address applications such as blocker test/receiver desensitization, high-performance intermodulation distortion measurements, and various electronic warfare applications. The PXIe-5654 is designed to meet the challenging requirements of RFIC characterization, satellite test, and radar applications. Some PXIe-5654 options include a PXIe-5696 Amplitude Extender Module. The PXIe-5696 supports a frequency range of 250 kHz to 20 GHz and an extended amplitude range up to 27 dBm.
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Linear Amplifiers
LA Series
Motion Control Systems'' linear amplifiers are high performance servo controllers that produce very smooth sinusoidal motor currents using a linear amplifier output stage. In combination with a sinusoidally wound MCS brushless motor, the linear amplifier can achieve extremely precise rotational control with less than 1% torque ripple, no acoustic noise and almost undetectable levels of electromagnetic interference. Standard programmable features allow greater design flexibility, easy installation and start-up.
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C Series Voltage And Current Input Module
The C Series Voltage and Current Input Module features up to 16 input channels with built-in noise rejection. You can use this module to combine the two most common inputs to reduce the overall number of modules you need in your measurement system.The C Series Voltage and Current Input Module includes the NI-DAQmx driver and configuration utility that simplify configuration and measurements. NI-DAQmx supports NI programming environments as well as Python, ANSI C, C#.NET, and MathWorks MATLAB® software.
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Multimode Data Controller
PK-232/PSK
Timewave’s customers swear by their DSP filters and PK-232 owners love the flexibility and reliability of the most popular data controller ever built. Now with the addition of a sound card interface, the PK-232/PSK rolls it all into one! The PK-232/PSK brings a new level of performance to the legendary PK-232 with sharp, accurate DSP filters for all its internal data modes and dual transformer isolation for sound card data modes. Weak signals magically appear from the noise and QRM bounces off the new DSP filters for cleaner copy with fewer errors than the old analog filters.
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FTTH Optical Node
SR2020AW
Hangzhou Softel Optic Co., Ltd.
SR2020AW, the operating bandwidth of 47~1000MHz, is a low power, high performance, cost-effective triple play, FTTH CATV optical receiver, Whether used in analog television or digital television. Products with high sensitivity optical receiver tube and special low noise matching circuit. Receiving at high optical power can be adjusted by PAD level, played limiting output, so SR2020AW within a large dynamic range of the received optical power of +2 dBm ~-21dBm, have excellent characteristics.
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Lock-In Voltage Preamplifier
SR552
Stanford Research Systems, Inc.
The SR552 Voltage Preamplifier is designed to work with SRS lock-in amplifiers, providing gain where it is needed most?right at the experiment. The preamplifier minimizes noise and pickup in the connecting lines and can reduce measurement time in noise-limited experiments.
