Frequency Standards
Devices that produce a known frequency.
See Also: Hydrogen Frequency Standards, Rubidium Standards, GPS Clocks
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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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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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Standard 3.74 (106.00) - 14.35 (407.00) High Frequency Probe
K-50B-QG-75R
High Frequency Probe
Nominal Impedance (Ohms): 50Bandwidth @ -1dB (GHz): 12.00Return Loss @ -20dB (GHz): 3.00Test Center (mil): 550Test Center (mm): 13.97Full Travel (mil): 100Full Travel (mm): 2.54Recommended Travel (mil): 67Recommended Travel (mm): 1.70Overall Length (mil): 1,637Overall Length (mm): 41.58
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Active Differential Probe, 100 kHz to 7 GHz
U1818A
High Frequency Probe
The Keysight U1818A 100 kHz to 7 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 U1818A allows measurements to be made while taking full advantage of Keysight's RF analyzers dynamic range.
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Product
NI-9326, 6-Channel, 150 V, 128 kHz C Series Frequency Input Module
786999-02
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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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
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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Standard 1.90 (53.90) - 8.00 (226.80) High Frequency Probe
CSP-40B-012
High Frequency Probe
Nominal Impedance (Ohms): 50Dielectric VTE Rating (k VAC): 1Bandwidth @ -1dB (GHz): 6.00Return Loss @ -20dB (GHz): 2.30Test Center (mil): 250Test Center (mm): 6.35Full Travel (mil): 200Full Travel (mm): 5.08Full Travel Remark: Shield: 275 (6.99) including travel of probesRecommended Travel (mil): 133Recommended Travel (mm): 3.38Recommended Travel Remark: Shield: 211 (5.36) including travel of probesOverall Length (mil): 1,151Overall Length (mm): 29.24
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Product
Standard 3.74 (106.00) - 14.35 (407.00) High Frequency Probe
K-50L-QG-75R
High Frequency Probe
Nominal Impedance (Ohms): 50Bandwidth @ -1dB (GHz): 12.00Return Loss @ -20dB (GHz): 3.00Test Center (mil): 550Test Center (mm): 13.97Full Travel (mil): 100Full Travel (mm): 2.54Recommended Travel (mil): 67Recommended Travel (mm): 1.70Overall Length (mil): 1,637Overall Length (mm): 41.58
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Product
Standard 4.47 (127.00) - 12.00 (340.00) High Frequency Probe
K-50H-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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Ultra Low Noise Disciplined Frequency 4220a Standard with Rubidium and OCXO Clean-Up Oscillator
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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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Product
110 GHz Frequency Extender
N5293AX01
Frequency Extender
The N5293AX01 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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Standard 0.80 (22.00) - 4.00 (114.00) High Frequency Probe
CSP-03B-006
High Frequency Probe
Current Rating (Amps): 6Bandwidth @ -1dB (GHz): 3.70Return Loss @ -20dB (GHz): 1.80Dielectric VTE Rating (k VAC): 1Nominal Impedance (Ohms): 50Test Center (mil): 300Test Center (mm): 7.62Full Travel (mil): 250Full Travel (mm): 6.35Recommended Travel (mil): 167Recommended Travel (mm): 4.24Overall Length (mil): 1,090Overall Length (mm): 27.76
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Frequency Meter, 3.7 to 12.5 GHz
537A
Frequency Counter
The Keysight 537A direct-reading frequency meter measures frequencies from 3.7 to 12.5 GHz quickly and accurately. Its long scale length and numerous calibration marks provide high resolution. This is particularly useful when measuring frequency differences or small frequency changes. Frequency is read directly in GHz so interpolation or charts are not required.
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Frequency Converters
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An electronic or electromechanical device that converts alternating current (AC) of one frequency to alternating current of another frequency.
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Frequency Multipliers
Triplers
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*No mechanical tuners*fullband operation*planar design*zero Bias
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Standards and Reagents
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Enhance your productivity, strengthen your compliance, support globalization, and stimulate your future business growth with Waters Analytical Standards and Reagents.
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Standard Series
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TPC-100W Series offers versatile web terminals in 7", 10", 15.6" and 21" displays, designed for factory.
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Phase Frequency Detectors
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Analog Devices phase frequency detectors offer high performance and ultralow phase noise in a low cost, compact package. Our devices can significantly improve frequency lock time, and include automatic and configurable lock detect indicators.
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Frequency Response Analyzers
7400 Series
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The Venable Model 7400 Series is the top of the line in Venable performance, supplying 4 channels for increased testing, measurement and analysis functionality. Originally designed for measuring 3-phase impedance and source and load simultaneously, the Model 7400 is a robust solution for organizations requiring high availability for high volume and/or simultaneous testing.
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Airborne Frequency Converter
AFC Series
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Behlman’s AFC-7000-1 & -2 and AFC-7003, frequency converter are designed to convert three-phase aircraft power to regulated single-phase (115 or 230 VAC) or three-phase (115/200 VAC) at 50 Hz, 60 Hz or 400 Hz. They are ruggedly built to support aircraft takeoffs and landings and designed to meet the input power requirements of MIL-STD-704 and RTCA-DO-160.
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Frequency Dividers
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These instruments feature a simple front-panel interface and provide low-jitter frequency division. A reset input (and manual switch) provides a method of synchronizing a high-speed input pulse train with lower-speed devices on the output.
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Resistivity Standard
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Resistivity Standards are bare silicon wafers available in 3 in, 8 in and 12 in sizes. The silicon is p-type (Boron) doped to nominal resistivity values, from 0.002 ohm.cm to 75 ohm.cm as available on the 3" model.
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Frequency Converter
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A frequency converter, also known as a frequency changer, is a device that takes incoming power, normally 50 or 60 Hz and converts it to 400 Hz output power. Different types of power frequency converters exist, specifically, there are both rotary frequency converters and solid state frequency converters. Rotary frequency converters use electrical energy to drive a motor. Solid state frequency converters take incoming alternating current (AC) and converts it to direct current (DC).
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Resonant Frequency Testing
E-Meter MK II™
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Determines resonant frequencies of the three modes of vibration. Material characteristics such as Youngs Modulus of Elasticity, Modulus of Rigidity, Poissons Ratio and Damping Constant can be calculated. Frequencies are automatically scanned in one of four ranges. The system can determine flexural resonance of concrete under accelerated freezing and thawing cycles and aggressive environments.
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Frequency Counter
FC-2500A
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High sensitivity for the VHF & UHFfrequency measurement, useful for theCB amateur.* Handheld & pocket size instrument.* Wide measuring range up to 2.6 GHz.* Good resolution, 0.1 Hz min. displayunit for 10 MHz range.* Used the exclusive Microprocessor ICoffered the intelligent function:Frequency, Period, Multi resolution,Data hold, Relative measurement, Datarecord( Max., Min., Average reading).* Auto power off & manual power off.* LCD display for low powerconsumption & clear read-out even inbright ambient light condition.
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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.





























