Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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High Performance Autoranging DC Power Module, 50V, 5A, 50W
N6751A
The Keysight N6751A is a 50 W high-performance, autoranging DC power module that provides low noise, high accuracy and programming speeds that are up to 10 to 50 times faster than other programmable power supplies. Optional high-speed test extension offers an oscilloscope-like digitizer that increases measurement accuracy when viewing high-speed transient or pulse events within the device-under-test (DUT).
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PXIe-4492, 204.8 kS/s, 113 dB, 2 Gains, 0.5 Hz AC/DC-Coupled, 8-Input PXI Sound and Vibration Module
781490-01
204.8 kS/s, 113 dB, 2 Gains, 0.5 Hz AC/DC-Coupled, 8-Input PXI Sound and Vibration Module - The PXIe‑4492 is designed for sound and vibration applications. With 24-bit analog inputs and IEPE constant current signal conditioning, the module is ideal for making precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. The PXIe‑4492 delivers simultaneous sample on all channels. In addition, it includes built-in antialiasing filters that automatically adjust to your sample rate, software-selectable input gains, and TEDS smart sensor support for error-free setup. Common applications include noise, vibration, and harshness (NVH) analysis; large microphone arrays; and dynamic structural test.
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Copper Telecommunications Test
Noise and transmission problems are constant battles in the best of worlds. With emerging technologies like IP-video over DSL delivered to the customer over existing copper pairs, it's more vital than ever for telephone companies to test and maintain their outside copper plants.
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Power Supplies and Sources
DC Power Supplies
DC power supplies are commonly used in electronics design, battery charging, electrical vehicle, research labs and education sectors. UNI-T offers both programmable and non-programmable power supplies with features such as low ripple and noise, constant voltage/current, overload protection, and more.
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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 Analysis
Cross-Spectrum FFT Analysis
The program Cross narrow-band spectrum is used for evaluation of the interrelation between the signals’ parameters obtained from the two primary transducers installed at various parts of the controlled object. This program can be used for detection of noise source location, for sound absorption level evaluation and the researched object acoustic properties control, for evaluation of space-time distribution of the directional energy flux (Poynting vector), for the ground cross-section FR characteristic evaluation (Nakamura method), etc.
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Power Rail Probe, 6 GHz
N7024A
The N7024A power rail probe is for users making power integrity measurements that need mV sensitivity when measuring noise, ripple and transients on their DC power rails. The probe is designed for measuring periodic and random disturbances (PARD), static and dynamic load response, programmable power rail response, and similar power integrity measurements. Many of today’s products have tighter tolerances on their DC power rails than the previous generations of these products, and the N7024A power rail probe is designed to help users ensure their products meet these tighter tolerances.
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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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RVDT Rotary Position Sensors
RV Series
The NewTek is a family of RVDT rotary position sensors for industrial applications. RVDT technology is known for reliability and ruggedness in harsh environments. The non-contact design allows for extremely long operational life and reliability and eliminates internal components that might wear or degrade over time. With a non-contact measurement, RVDTs offer good noise performance with excellent repeatability. The NewTek RV series is available in two sizes – The RV 8-30 is a size 8 (0.75 inch diameter) and the RV 11-30 is a size 11 (1.06 inch diameter).
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SCB-100 Noise Rejecting, Shielded I/O Connector Block
776990-01
100-Pin Female SCSI to 100-Pin Female Screw Terminal, Desktop Mount Terminal Block - The SCB-100 is a shielded I/O connector block for interfacing I/O signals to NI data acquisition devices with 100-pin connectors. Combined with the shielded cables, the SCB-100 provides rugged low-noise signal termination.
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Traveling Wave Tube Test System
Yelo has a wealth of experience in developing and customizing test systems for the Travelling Wave Tube (TWT) market. TWT testers feature specialized power supplies, measurement equipment, and comprehensive control and safety systems.A rugged PLC is used to control all voltages and perform all monitoring functions. User interface and datalogging functions are provided by a supervisory PC that is electrically isolated from the PLC. Power Supplies are solid state with optical fibre barriers to ensure that all control/monitoring is carried out at safe voltages, and with maximum noise immunity. All safety interlocks are hardwired, and the testers are equipped with emergency shutdown features for added security.
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Low Noise Amplifier
The COMM-connect Low Noise Amplifier can be used to amplify signals in a wide range of bands. The amplifier comes equipped with a SMA connectors, for easy installation. Mechanical mounting is made easy by mounting flaps protruding the casing.
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Ancillaries.. Conducted
The ease and effectiveness of conducted emission measurements can be enhanced by the use of appropriate filters. In particular, broadband noise below the frequencies of interest can cause limiting (compression) in spectrum analysers, distorting the measurements.
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Powered NIM Crate
NIM CERN-CE 600W With Fan Tray
The CERN spec./CE NIM crate series represents modular designed NIM crates with linear regulated power supplies in excellent and proven W-IE-NE-R quality, conforming to EUR4100 and CERN specifications. These NIM crates are outfitted with 600W linear regulated, low noise plug-in power supplies and a fan tray for demanding applications.
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mmWave and Microwave GaAs Frequency Dividers and Prescalers
Keysight Technologies provides MMIC frequency dividers and prescalers ideal for high-frequency communications, microwave instrumentation, and electronic warfare (EW) radar system applications. These devices operate from DC to 16 GHz and provide a large input power sensitivity window and low phase noise.
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Oscilloscope, 350 MHz, 2 GS/s interleaved, 4 CH, 200 Mpts/Ch DSO, Fully Loaded with 10.1" Color Display
T3DSO2354HD
The T3DSO2000HD series of Bench Oscilloscopes feature 4-channel models with analog bandwidth options of 100 MHz, 200MHz and 350 MHz. The T3DSO2000HD Oscilloscopes use 12-bit high resolution ADCs and a low noise front end which provides an impressive noise performance to cover a wide range of measurement applications. Each model offers a maximum sample rate of 2 GSa/s (interleaved) and a maximum memory depth of 200 Mpts in interleave mode. The MS configured models also include a 16 channel logic probe as standard.
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Lock-In Voltage Preamplifier
SR550
Stanford Research Systems, Inc.
The SR550 Voltage Preamplifier is designed to work with any SRS lock-in amplifier. Preamplifiers provide gain close to the experimental detector, before the signal-to-noise ratio is permanently degraded by cable capacitance and pickup
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PXIe-5654, 10 GHz or 20 GHz RF Signal Generator
783126-01
The PXIe‑5654 features an ideal 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.
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Low Noise Triple Band Voltage Controlled Oscillator
This Low Noise Triple Band Voltage Controlled Oscillator was designed to meet a specific customer requirement. The VCO cover the 3300 to 4700 MHz frequency range in three bands. The output power is +9 to +12 dBm with an integrated buffer amplifier to minimize load pulling. The three bands are selected using standard TTL control.
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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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4 GHz ProBus2 Differential Probe with Adjustable Tip
D400A-AT-PB2
- 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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ATE System Power Supplies
N8700 Series
The Keysight N8700 Series ATE system power supply delivers high current with low noise in a compact two unit package. Airflow moves front to back, so no additional space is required above or below the power supply in your automated test equipment (ATE) rack. This series of programmable power supplies sources up to 3300 or 5200 W. Get output voltages from 8 to 600 V and 5.5 to 400 A.
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Down Converter
The products have a big Dynamic Range, are highly linear and have low Noise Figures to keep the best possible quality of the signals to be converted. For this reason an internal filter for secondary wave suppression is implemented.
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30W Power Supply, 35V, 0.8A or 60V, 0.5A
E3641A
Keysight basic DC power supplies offer essential features for a tight budget. The single & dual output, 30-100 W GPIB E3640 series provide small, compact size for bench and system use; low output ripple and noise; and built-in measurements and basic programmable features. The Keysight 30W, single output E3641A is a stable and reliable power supply for benchtop and basic automated test applications, and enables versatile solutions for tests that require moderate speed and precision with both GPIB and RS232.
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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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Powered VXS Crates
6U VXS 6021
The WIENER VXS 6023 crate series adds high performance Switch Fabrics according to VITA 41 specification to VME based systems. Designed primarily for high speed applications in data acquisition, as well as military / aerospace test and instrumentation it combines superior mechanical quality with lowest noise power supply technology.
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Optical Transmitter
ST1013-10mW
Hangzhou Softel Optic Co., Ltd.
*Designed for FTTH(Fiber To The Home)Networks *Excellent Linearity and flatness *Single-mode fiber high return loss *Using GaAs amplifier active devices *Ultra low noise technology *Using DFB coaxial small package laser *Smaller size and easier install *Red-LED for power indication
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PXI Triple SPDT RF Switch 3GHz 50 SMB
40-870-003
The 40-870 is a 50 RF Switch available with 3 or 6 separate SPDT relays in a single PXI slot. Both versions exhibit 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 40-870 has been minimized by careful attention to the mechanical and electrical design.
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Charge Integrator Amplifiers
AD8488
Analog Devices’ charge integrator amplifiers convert the charge acquired by X-ray or photodiode detectors to a voltage. The channels are composed of CMOS transistors, using typical high input impedance CMOS gates. The integrators generate charge dependent voltages using a range of selectable capacitance values that accommodate a broad range of input charge values. The integrators are followed by single-ended input to differential output voltage amplifiers where offset and low frequency noise voltages are subtracted from the input voltages.
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Sound Level Meters
Sound level meters measure sound pressure level and are commonly used in noise pollution studies for the quantification of almost any noise, but especially for industrial, environmental and aircraft noise.
