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VLF Insulation Testing
Weshine Electric Manufacturing Co., Ltd
1. The current, voltage and waveform data are directly obtained from the high voltage side, so the data is accurate.2. It has over-voltage protection function. When the output exceeds the set voltage limit, the instrument will stop for protection, and the action time is less than 20ms.3. It has over-current protection function: it is designed as high-voltage and low-voltage dual protection, and the high-voltage side can carry out accurate shutdown protection according to the set value; when the current on the low-voltage side exceeds the rated current, it will carry out shutdown protection, and the action time is less than 20ms.
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KPG 24kV VLF Test Set
Kilovolt Prueftechnik Chemnitz GmbH
The portable cable test set KPG 24kV VLF is used for testing of medium voltage cables in accordance to the standards IEC 60502-2, CENELEC HD 620 & 621, DIN VDE 0276/620 & 621 and IEEE 400.Test is carried out with a low strain practice with VLF (very low frequency) test voltage of preferably 0.1Hz.VLF testing enables detection of damages of insulation within shortest test time.
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4210A Rubidium Frequency Standard
Precise Time and Frequency, Inc.
The ptf 4210A Rubidium Frequency Standard is a unique solution for providing a highly stable, low phase noise, frequency reference for applications requiring atomic reference stability performance.The instrument contains a high performance rubidium module, with an extended life design, and very low aging rate, with high quality OCXO o/p for low phase noise.
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Time & Frequency Distribution Amplifiers
Brandywine offers a wide range of high quality, state of the art signal timing distribution amplifiers, all with very low phase noise. These precision timing signal distribution amplifiers offer a variety of time and frequency signals and interface formats including IRIG A, IRIG B, Have Quick, 1PPS, as well as low phase noise reference frequencies. All of our distribution amplifiers feature dual inputs with automatic failover and multiple independently buffered outputs.
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VLF Voltage Generators
Fivestar HV Testing Equipment Co., Ltd.
VLF hipot is an AC output tester with an output frequency of 0.1 Hz or lower rather than 50/60 Hz. Although the frequency is very low, it is an alternating current with polarity reversals every half cycle.
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Extended Range Shallow Water Multibeam Echosounder
SeaBat T50 Extended Range
The SeaBat T50 Extended Range is the very latest addition to the leading SeaBat T-series product range, engineered from the ground up to evolve with your business. Combined with a very compact Rack-mounted Sonar Processor (RSP), the SeaBat T50 Extended Range produces unprecedented clean data, at unprecedented resolution, providing faster operational surveys and reduced processing time.The SeaBat T50 Extended Range is fully frequency agile from 150 to 420 kHz, allowing for extremely high resolution surveys in very shallow waters and with the capability to operate out to about 900m water depth!The Rack-mounted Sonar Processor comes with an optional industry leading fully integrated Inertial Navigation System for accurate sensor time tagging and motion stabilization.The SeaBat T50 Extended Range is designed for very fast mobilization on any type of survey vessels, securing minimal interfacing and low space requirements – or it can be installed as a permanent installation in a sea chest or on a hoist system.
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Digital RCD Tester
1112 EL
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Very low consumption.● 50Hz and 60Hz operation.● Accurate digital readout of disconnection time.● Over temperature protection.● Over voltage protection.● Fuse protection.● Zero crossing circuitry permit testing at 0° or 180°.● Auto power off. ● Backlight function. ● Wiring polarity indicator.● Measure voltage between Line and Earth before testing.● Frequency measurement indication.
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DC Block, 700 kHz to 67 GHz
N9398G
The Keysight N9398G DC block offers a new level of DC blocking with performance specified from 700 kHz to 67 GHz. This DC block features a broad frequency range, excellent return loss, very low insertion loss and excellent temperature stability.
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Partial Discharge and Tan Delta
PDIX Series
PDIX is a combined partial discharge and tan delta cable diagnostic testing system. By combining HVI’s VLF products with PDIX products, users can perform VLF AC withstand, partial discharge detection, and tan delta measurement on medium and high voltage cables, rotating machinery, and other apparatus with one integrated package fully supported by HVI & PDIX.
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VLF Electromagnetics
VLF surveying relies on radio signals that are broadcast from navigation stations around the world. The principle is that these signals are deflected in certain ways when they pass through conductive ore or water-filled vertical-to-sub-vertial fractures in the earth. By monitoring these deflections, the position and, potentially, size of the target can be determined.
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Handheld Digital Spectrum Analyzer,
109990014
RF Explorer is a handheld digital spectrum analyzer, a very affordable tool for work in all ISM popular frequency bands. It is based on a highly integrated frequency synthesizer which offers high performance, compact size, low consumption and low cost.
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Ultra Low Noise Disciplined Frequency 4220a Standard with Rubidium and OCXO Clean-Up Oscillator
Precise Time and Frequency, Inc.
The ptf 4220A is an Ultra Low Noise Disciplined Frequency Standard with rubidium and OCXO clean-up oscillator.The instrument contains a high performance rubidium module, with an extended life design, and very low aging rate, with high quality OCXO o/p for low phase noise.
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Low Noise Amplifiers
WA Series
WA series low noise amplifiers are the balance type LNA with alarm capability in some of the products. Besides offering very low noise figure and wide bandwidth, the LNA have high linearity with unconditional stable design. The noise figures are from 0.40 dB to 1.0 dB and IP3 from 30 dBm to 40 dBm.The amplifiers cover the frequency bands of VHF, UHF, Cellular, GSM, DCS, PCS, 3G, C, and wireless LAN. The built-in alarm capabilities include Branch 1 and Branch 2 alarms, Soft Failure alarm, Hard Failure alarm, Soft alarm Open-Collector, and Hard alarm Open-Collector.
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Diversity Receiver
R400a
The R400a is a high performance, triple-conversion, frequency synthesized, UHF receiver fully compatible with all Lectrosonics 400 series transmitters, and a number of analog models. The proprietary audio processing includes a DSP (digital signal processor) for very low distortion and a superior signal to noise ratio. The DSP eliminates a compandor and its artifacts to provide exceptional audio quality when operating in its native hybrid mode. Special DSP algorithms also provide compatibility modes for use with Lectrosonics 100 and 200 Series analog transmitters.
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GPS Frequency Reference
E8000
The Quartzlock E8000 GPS Frequency Reference is a breakthrough in exceptionally low cost, traceable, 1-U rack mount, calibration-free, off-air frequency & time standards. These very low cost references maintain the high frequency & time accuracy required for demanding applications. Ultra low noise option are available.
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Analog Seismic Sensors
Seismometers
Designed to yield the performance needed for scientific studies, our seismometers are used for monitoring long period (very low frequency) signals. These units are often used for earthquake monitoring and for triggering potential alerts during natural disasters such as tsunamis.
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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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HF Low Noise Amplifier
The COMM-connect HF Low Noise Amplifier can be used to amplify signals in the HF frequency range. The amplifier comes with a selection of 4 different connectors, which makes it very easy to adapt to any type of installation. Mechanical mounting is made easy by mounting flaps protruding the casing.
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VLF Testing and Diagnostics System
PHG 80 TD/PD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR PHG 80 TD/PD. With the PHG TD/PD, you get a multifunctional cable testing and diagnostics system that was specially designed and developed for medium-voltage networks. The PHG TD/PD system is also the only cable testing and diagnostics system that gives a comprehensive overview of the quality and ageing condition of the test sample. The diagnostic methods TD and PD are mutually complementary, because on one hand you can detect the complete condition and on the other hand locate individual faults in the operating resources.* High performance VLF truesinus testing device (3 kW) with regulated output voltage* Compact, enclosed design in 19" format* Variable installation option with separate control and voltage unit* Variable connection options to cable stations of different models
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Tan Delta Test System
Diagnostic test that indicates the degree of cable insulation degradation. Rather than using only a VLF instrument to perform a go/no-go proof test, the Tan Delta, used in conjunction with a VLF hipot, permits the user to grade the deterioration level of many cables in order to prioritize replacement, rejuvenation, or to determine what additional tests may be useful.
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Noise Source, 10 MHz to 18 GHz, nominal ENR 6 dB
346A
The Keysight 346A noise source is the ideal companion to Keysight's noise figure solutions. Since it is broadband (10 MHz to 18 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source reduces a major source of measurement uncertainty; reflections of test signals. The very small change in reflection coefficient (<0.01) from ON to OFF is designed especially for accurate characterization of input-impedance-sensitive devices (like GaAsFETs and many UHF amplifiers).
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handheld digital spectrum analyzer
2.4G
RF Explorer is a handheld digital spectrum analyzer, aimed to provide a very affordable tool for work in all ISM popular frequency bands. It is based on a highly integrated frequency synthesizer which offers high performance, compact size, low consumption and low cost. It has been designed to be used outdoor and indoor, and works nice with a PC connected for extra functionality using standard mini-USB 2.0 connector.
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Wireless Belt-Pack Instrument System
IS400 Compact
The IS400 Pro Digital Hybrid Wireless system sets new standards for wireless guitar and bass. Ultra portability, flat frequency response, low distortion and compandor-free operation provides the closest thing to using a high-quality, short instrument cable. The system reproduces the lowest fundamental from a 5-string bass (low B) at 32Hz up to the very highest overtones and harmonics and provides lively, responsive playing for the professional artist.
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AC Current Sensor
LFR
The LFR ac current probe has been designed to have market leading low frequency performance, meaning low phase shift and low noise. This compact, low cost, clip-around probe is both flexible and dual-range, and is optimized to give minimal phase measurement error at frequencies from 45Hz to 20kHz and have a very low noise floor.
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Programmable AC Power Source
6400
Chroma Systems Solutions, Inc.
The Chroma 6400 series Programmable AC Power Source uses state of the art PWM technology to deliver pure, instrument grade AC power at a very low cost never achieved before. The 6400 AC power source offers maximum rated power for any output voltage from 0 to 300VAC, at any frequency from 45 to 1K Hz. It is not only suitable for commercial applications (47-63Hz), but also for avionics, marine, military applications at 400Hz.
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Super Phosphor Oscilloscopes
SDS2000X-E Series
The SDS2000X-E series employs a new generation of SPO technology. With its excellent signal fidelity, background noise is lower than similar products in the industry. It has a minimum vertical input range of 500 uV/div, an innovative digital trigger system with high sensitivity and low jitter, and a waveform capture rate of 400,000 frames/sec (sequence mode). It also employs a 256-level intensity grading display function and a color temperature display mode not found in other models in this class. Siglent’s newest oscilloscope offering supports multiple powerful triggering modes including serial bus triggering and decoding. History waveform recording and sequential triggering allow for extended waveform records to be captured, stored, and analyzed. Also included is the deep memory FFT. This math function uses upto 1 M samples for the FFT calculation, providing the SDS2000X-E with very high frequency resolution. The hardware co-processor executes true fast measurement and math to all of 28M sample points so that there is minimal distortion on analysis. It also supports searching and navigating, on-screen Bode plot, 16 channel digital /MSO (optional), an external USB powered 25 MHz AWG function generator module (option), a USB WIFI adapter for wireless control and monitoring (option), and an embedded application that allows remote control via web browser. The features and high-performance of the SDS2000X-E oscilloscopes cannot be matched else anywhere at this price.
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Decade Capacitor
1419 Series
GenRad 1419-A and GenRad 1419-B (Polystyrene) Owing to its very low dielectric absorption, the GenRad 1419A 3 Decade 1000 pF/step & 1419B 4 Decade 100 pF/step Polystyrene Decade Capacitors are particularly useful in research and development work on computer and integrator circuits and on low-level amplifiers. Its constancy of capacitance and dissipation factor as a function of frequency also makes it extremely useful in measuring circuits and as a component in filters and tuned circuits. High insulation resistance and low dielectric absorption make it the 1419 Decade Capacitor a nearly ideal capacitor for dc work.
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Detectors
Keysight detectors offer very flat frequency response versus frequency and temperature and exhibit excellent square law response with very low junction capacitance. Planar Doped Barrier Diode Detectors are available only from Keysight.
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3-AXIS DIGITAL AC GAUSSMETER: 1-200 kHz
IDR-200
Integrity Design and Reseach Corp.
Typical Applications include checking the frequencies and magnetic fields (BW: 1 kHz -200 kHz) produced by equipments such as computer monitors, television sets, video display terminals, induction heaters, industrial, Radar, scientific/medical equipment, walk-through/hand-held detectors and ground wave energy network; etc. For more information about VLF magnetic fields and the VLF gaussmeter , see the paper titled "Very-low-frequency electromagnetic field detector with data acquisition," IEEE Trans. Instrum. Meas.,vol. 58, no. 1, pp. 129-140, Dec. 2008. by S. Hanna.
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DC Block, 700 kHz to 26.5 GHz
N9399C
The Keysight N9399C DC block offers a new level of DC blocking with performance specified from 700 kHz to 26.5 GHz. This DC block features a broad frequency range, excellent return loss, very low insertion loss and excellent temperature stability.
