Hydrogen Maser Frequency References
Microwave Amplification by Stimulated Emission of Radiation
See Also: Atomic Clocks
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Product
Standard 4.47 (127.00) - 12.00 (340.00) High Frequency Probe
K-50B-S
High Frequency Probe
Current Rating (Amps): 6Bandwidth @ -1dB (GHz): 4.00Return Loss @ -20dB (GHz): 2.50Nominal Impedance (Ohms): 50Test Center (mil): 600Test Center (mm): 15.24Full Travel (mil): 100Full Travel (mm): 2.54Recommended Travel (mil): 90Recommended Travel (mm): 2.29Overall Length (mil): 1,205Overall Length (mm): 30.61
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Product
Frequency Counters
Frequency Counter
Frequency Counters measure frequency, period, time interval, pulse width, duty cycle, frequency ratio, phase, and more. Frequency counter products include options that are compatible with Astronics/Racal VXI-2461C, which can be used for automated test aerospace and defense applications.
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Product
Hydrogen Frequency & Time Standard
CH1-1007
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Hydrogen frequency and time standard Ch1-1007 is designed to generate and reproduce precision, highly stable, spectrally pure frequency and time signals. Main areas of application: – in metrology when transferring the sizes of units of frequency and time, including as part of mobile measuring complexes; – in radio astronomy when conducting scientific research; - in radio navigation when working as part of automated measuring systems and complexes.
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Product
110 GHz Frequency Extender
N5293AX51
Frequency Extender
The N5293AX51 modules are compact lightweight modules designed to interface to the N5292A test set controller that is driven with a PNA/PNA-X B model vector network analyzer.
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Product
RF High Frequency Probes
High Frequency Probe
*Low impedance*High bandwidth up to 20 GHz*Repeatable measurements*Coaxial design*Interchangeable center conductor
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Product
120 GHz Frequency Extender
N5295AX51
Frequency Extender
The N5295AX51 modules are compact lightweight modules designed to interface to the N5292A test set controller that is driven with a PNA/PNA-X B model vector network analyzer.
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Product
GPS Frequency Reference
E8000
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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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Product
110 GHz Frequency Extender
N5293AX03
Frequency Extender
The N5293AX03 modules are compact lightweight modules designed to interface to the N5292A test set controller that is driven with a PNA/PNA-X B model vector network analyzer.
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Product
Hydrogen Analyzer
H‑500
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Determination of hydrogen using the heat extraction method is a special requirement for the characterization of steel, steel alloys, copper and other metals. ELTRA’s H-500 is designed for the rapid and accurate determination of hydrogen in these materials. The H-500 analyzer uses the heat extraction technique and is equipped with a resistance furnace with quartz tube. The temperature can be set up to 1000 °C in steps of 1 °C. The usual working range of the H-500 is about 900° to 1000° C.
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Product
Adjustable High Frequency Reference Ballast
HCS-109A
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HCS-109A Adjustable High Frequency Reference Ballast also called High Frequency Current Source. Comparing to IEC Test Method, HCS-109A is an Equivalent Test Method which is economic solution. HCS-109A equipped with Spectrophotometer & Integrating Sphere Test System. It can also measure the photo, color and electricity parameters for high frequency fluorescent lamp.Specifications: • Input voltage: 200V~240V, 50/60Hz • Input Power: 80 W max • Output Current: 130mA~400mA (Adjustable), accuracy: +/- 1% • Output Frequency: 25kHz< +/-2.0% (Adjustable), accuracy: +/- 0.3kHz • Output current total harmonic wave distortion: THD<2.5% (HF current wave)
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Product
Standard 3.27 (93.00) - 8.13 (231.00) High Frequency Probe
K-50L-QG
High Frequency Probe
Bandwidth @ -1dB (GHz): 4.00Return Loss @ -20dB (GHz): 0.80Nominal Impedance (Ohms): 50Test Center (mil): 550Test Center (mm): 13.97Full Travel (mil): 250Full Travel (mm): 6.35Recommended Travel (mil): 225Recommended Travel (mm): 5.72Overall Length (mil): 1,830Overall Length (mm): 46.48
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Product
PXIe Frequency Reference: 10 MHz And 100 MHz
M9300A
Signal Generator
The M9300A PXIe frequency reference is a PXIe-compatible, compact, modular instrument that can be used with the Keysight M9301A synthesizer, M9310A source output, and M9311A modulator to create the world’s fastest vector signal generator, the M9381A. Create a CW source, the M9380A, by combining the M9300A with the M9301A and M9310A or use it as the 10-MHz or 100-MHz reference with other PXI solutions. Control the instrument through a soft front panel and programmatic interfaces tuned to your application development environment of choice.
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Product
120 GHz Frequency Extender
N5295AX53
Frequency Extender
The N5295AX53 modules are compact lightweight modules designed to interface to the N5292A test set controller that is driven with a PNA/PNA-X B model vector network analyzer.
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Product
Hydrogen Frequency & Time Standard
CH1-1006
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The hydrogen frequency and time standard Ch1-1006 is designed to generate highly stable, high-frequency, spectrally pure sinusoidal 5, 10, 100 MHz and pulsed 1 Hz signals and for the behavior of time-frequency measurements.
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Product
Hydrogen Fuel Cell
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Honeywell Aerospace Technologies
Honeywell has a decades-long history of innovation in power generation for all kinds of aerospace and defense applications, which was further strengthened by the 2020 acquisition of Ballard Unmanned Systems, a global leader in fuel cell technologies for unmanned aerial vehicles (UAVs).
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Product
Active Differential Probe, 100 kHz to 12 GHz
U1818B
High Frequency Probe
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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Product
Hydrogen Frequency & Time Standard
CH1-1033
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The hydrogen frequency and time standard Ch1-1033 is designed for precision storage and reproduction of the size of frequency and time units as part of measures and reference complexes. Main areas of application: – public service of time and frequency; – ground control complexes of radio navigation systems; – radio interferometry with extra long base.
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Product
Reference Thermometers
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Reference thermometers (standard thermometers) are, due to their excellent stability and their geometrical adaptations, ideally suited for applications in industrial laboratories. They enable easy comparative calibration in baths, in tube furnaces and in dry-well calibrators. The advantage of reference thermometers is the wide temperature range, and with this, their flexible operation. Furthermore, with their low drift, a long service life is ensured.
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Product
Hydrogen Sulfide Detectors
INS2-H2S-03
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The professional-grade Hydrogen Sulfide Inspector is the ideal tool for all industrial applications. The Inspector is perfect for people working in refineries to people working in sewage and wastewater treatment facilities. With its advanced sensor technology, the Inspector allows for accurate readings of hydrogen sulfide concentrations. The Industrial Pro is the most advanced Inspector model, and features audio, visual, and vibration alarms.
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Product
Reference data
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The performance data of the SiTek PSDs conform to the highest standards. The device specification data are measured in a well-defined environment but are also proven to be perfectly adequate in widely diverse environments, including those of an extremely demanding nature.
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Product
Reference Antennas
Type NRD
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Reference antennas are precision dipole antennas that offer a fixed 2.15 dB of gain over an isotropic antenna along the major lobe axis at specified frequencies (2.15 dBi). They are intended to be used for antenna field pattern and gain measurements, or general RF sensing in the laboratory.
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Product
NI-9326, 6-Channel, 150 V, 128 kHz C Series Frequency Input Module
786999-01
Frequency Input Module
6-Channel, 150 V, 128 kHz C Series Frequency Input Module - The NI-9326 is a channel-to-channel isolated frequency input module for CompactDAQ and CompactRIO systems. This module includes six differential input channels with a 0 Vrms to 150 Vrms input range. The NI-9326 also features configurable thresholds for connection to a variety of variable reluctance sensors, single channel encoders, and hall-effect sensors. You can use the included embedded counters to perform frequency measurements or edge-counting for tracking total counts on a periodic signal. Additionally, the NI-9326 supports configurable Butterworth filters to help you perform low-noise frequency measurements.
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Product
Reference Solutions
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As you seek solutions to evolving test challenges, Keysight Reference Solutions provide the right combination of hardware, software, and measurement expertise through programming examples highly optimized for specific applications. Reference Solutions show you how to get the most out of your test equipment, helping you achieve half the time to insight.
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Product
120 GHz Frequency Extender
N5295AX01
Frequency Extender
The N5295AX01 modules are compact lightweight modules designed to interface to the N5292A test set controller that is driven with a PNA/PNA-X B model vector network analyzer.
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Product
120 GHz Frequency Extender, Pulsed DC Bias
N5295AX02
Frequency Extender
The N5295AX02 is a compact and broadband frequency extender with built-in pulsed bias-tee and provides 10 MHz to 120 GHz single-sweep measurements with N5292A test set controller systemized with a PNA/PNA-X B vector network analyzer.
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Product
Reference Electrodes
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Reference electrodes are widely used as: electrochemical measurements (CV, LSV, DPV, etc.) electrochemical devices (detectors for HPLC, biosensor, etc.)
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Product
Hydrogen Analyzer
EMGA-921
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EMGA-921 Hydrogen analyzer: It's a "New flagship model” for H analyzer and user friendly product.This is an hydrogen elemental analyzer with high accuracy and repeatability suiting to cutting-edge technology's R&D as well as quality control in the market of steel, new materials, catalyst and so on. This is a new generation model optimized to fit to user's requests.
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Product
Hydrogen Sulfide Analyzer(H2S)
AQMS-550
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AQMS-550 is equipped with an internally mounted catalytic converter set at 315°C to convert H2S to SO2. Bypassing the sample through an SO2 scrubber which removes any SO2, the H2S is converted to SO2 using this internal H2S converter and measured using the pulsed fluorescence technique.AQMS-550 H2S analyzer adopts UV fluorescence principle with an internal thermal catalytic converter to measure H2S in ambient air at levels commonly required.
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Product
Frequency Synthesizer-Detector
SD-31
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The Model SD-31 Synthesizer-Detector is a high output crystal signal generator of precisely known frequency combined with a sensitive, selective detctor for RF bridge measurements of AM antenna impedance. Packaged in a single light-weight battery-powered unit, the SD031 complements bridges such as the General Radio 1606, 916, and the Delta OIB-1.
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Product
Frequency Multipliers
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A nonlinear electronic circuit that takes an input signal and generates an output signal at an integer multiple (like 2x, 4x, 8x) of the input frequency.





























