Frequency Standards
Devices that produce a known frequency.
See Also: Hydrogen Frequency Standards, Rubidium Standards, GPS Clocks
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Frequency Standards
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Precision Test manufacturers a complete range of frequency standards. This includes rubidium and OXCO models either free running or controlled by an external reference (GPS, GLONASS, Galileo, 1pps, 5 MHz, 10 MHz, IRIG-B etc). Output frequencies typically 1 MHz, 5 MHz, 10 MHz, 10.23 MHz, 13 MHz, 100 MHz or bespoke frequency.
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Time & Frequency Standards
Meridian II Precision TimeBase
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The Meridian II Precision TimeBase is a modular, network-centric, time & frequency standard that provides the most precise and stable, GPS-synchronized, time & frequency outputs in the world. Unlike our competitors, we fully specify the performance of Meridian II and back it up with published data measured at NIST.
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Rubidium Frequency Standards
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Incorporating time-tested and field-proven technology, these rubidiums deliver high-precision time and frequency accuracy for measurement equipment. Products are available in VXI and PXI versions.
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GPS Frequency Standards
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Precision Test Systems manufacturers' a full range of GPS and GNSS frequency standards that are disciplined to most of the worlds satellite systems.
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2210A & 2211A Quartz Frequency Standards
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Precise Time and Frequency, Inc.
The ptf 2210A Quartz Frequency Standard has been designed to provide a highly stable and spectrally pure frequency reference for applications requiring the ultimate in short term frequency performance.The instrument contains a double oven controlled stress compensated (SC cut) quartz crystal oscillator (OCXO) to give the ultimate in performance.Ideal for laboratory or system use, the unit provides good stability performance at lower cost and with improved phase noise.
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3207a GPS/GNS Frequency and Time Reference
GlobalTyme2
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Precise Time and Frequency, Inc.
The ptf 3207A GlobalTyme2 GNS Receiver introduces a new level of advanced capability from a second generation, based on the highly successful ptf 3203A and ptf 3204A GlobalTyme receivers.The unit is both a frequency standard and a time standard and has been used as a precision frequency reference with low phase noise, in satellite communications applications around the world.
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Vector Network Analyzer
R42XXE
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The R42XXE Vector Network Analyzers are designed for measuring of S-parameters, VSWR and impedance of waveguide networks in the full frequency ranges of standard waveguides between 33 and 170 GHz. Frequency accuracy is ±0.2%. The measurement range of reflection factor modulus is from 0 to 1. The measurement range of reflection factor phase is from 0 to ±180° for 0.1< |Гx|<1 with accuracy ±7.5 o in 18-75 GHz frequency range and ±9.6° in 75-170 GHz frequency range. The measurement range of transmission factor phase is from 0 to ±180 o with accuracy ±(5+0.1 |Ax|) o for Ax >-50 dB in frequency range to 75 GHz, for Ax >-30 dB - to 170 GHz. Data can be displayed in the rectangular, Smith or polar diagrams. VNA requires Personal Computer with USB interface.
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Rubidium Instruments
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Our range of atomic / rubidium disciplined time and frequency standards in a variety of enclosures and sizes to suit all appliations. These acurate time and frequency references are used in telecoms, aviation, nautical and precision test and measurement enviroments.
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Microprocessor Development System
DS-M8
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# Real-Time and Transparent In-Circuit Emulator# Supports PIC12xxx, PIC14xxx, PIC16xxx, PIC17xxx and others# Uses Microchip Bond-Out Technology# Maximum Frequency Support# Standard 64Kx16 Emulation Memory# 32Kx48 Real-time Trace with Filters and Triggers# 64K Hardware Breakpoints with External Signals# Memory Mapping Capabilities# Software for MS-Windows# Source-Level Debugger for C and Assembler
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Cold-Atom Frequency Standard
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Rack-mount microwave atomic clock using laser-cooled 87Rb atoms. Production unit target specifications: Allan deviation 2×10-12 @ 1 s, 2×10-14 @ 104 s; flicker floor 1×10-14; absolute accuracy < 1×10-13.
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Fiber Optic Modem
VCH-608
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The VCH-608 fiber optic modem is designed to receive and transmit via a fiber optic communication line (FOCL) signals of frequency and time standards (TSV) :- pulse signals 1 Hz (1 PPS) with delay compensation,- harmonic electrical signals with a nominal value frequency 100 MHz with phase instability compensation.
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6GHz Dual Frequency Synthesizer moduleValon
5009
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The Valon 5009 Dual Frequency Synthesizer module is our latest offering in high frequency synthesizer sources. These frequency synthesizers are perfect in applications that require a spectrally pure and highly stable signal source or timing clock. Our synthesizers have replaced laboratory generators costing many times more in a number of applications. Each module actually contains two independent sources locked to the same internal or external frequency reference or standard. Having two phase coherent sources in the same convenient package opens up a wide variety of test applications and solutions
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Climate Chamber
VCH-A18
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The climatic chamber is designed to maintain a stable temperature of frequency and time standards and other high-precision electronic devices.
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Ultra Low Noise, Rubidium Frequency Standard.
A10-M
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Frequency Referencing, Calibration, Standards Lab, Production Test for Oscillator Manufacturers. A very high stability LOW NOISE 10MHz Rubidium Reference, primarily for production test of quartz oscillators and RF instrumentation frequency referencing. This industry standard 2U rack-mount instrument has a long heritage and ongoing production life for this latest 2009 version that features RS232 monitoring and control of the DPLL, locking the Ultra Low Noise OCXO to the Rubidium. Damping and Bandwidth is controlled by integrator digital gain, proportional digital gain, pre-filter order and subsample rate. Eight values of user selected bandwidth are available.
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Frequency Converter
A6
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The Quartzlock model A6 frequency converter precisely changes either 5 or 10MHz sine wave signals to a number of other frequencies from 1Hz and 1pps upwards to other standard frequencies.
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Cellular Antennas
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Our portfolio of cellular antennas includes solutions for emerging technologies such as 5G, as well as coverage of older networks such as 2G, 3G, 4G, and CBRS. A wide range of internal/embedded antennas and externally mounted antennas are available to suit a wide range of customer requirements. Our cellular antennas are available for regions, frequencies, and standards, with products ranging from 617 - 7125 MHz. Choose from a variety of antenna types, product length, width, and height, and wireless application. Custom antenna developments are regularly undertaken to meet specific customer requirements. Our cellular antenna portfolio includes products manufactured by TE Connectivity, Laird Connectivity External Antennas, and Hirschmann Car Communications.
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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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Benchtop Rubidium Frequency Standard
FS725
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Stanford Research Systems, Inc.
The FS725 integrates a rubidium oscillator (SRS model PRS10), a low-noise AC power supply, and distribution amplifiers in a compact, half-width 2U chassis.
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Conical Horn Antennas
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Conical gain horns are offered as both standard and custom models with either a circular or rectangular waveguide interface. While conical gain horns with a rectangular waveguide interface can only support linear polarization, models with a circular waveguide interface can support various polarization types including horizontal, vertical, left-handed circular, and right-handed circular polarization for broader applications. The listed models operate across the full waveguide band and offer 23 dB nominal gain, 12 degrees typical half power beamwidth, a 24 dB typical side lobe level and 1.15:1 VSWR at center frequency. The below standard offering covers the frequency range of 8.5 to 140 GHz. However, other frequencies and standard models with 10, 15, 20 and 25 dB gain are also available.
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AC Power Source
AFC series
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The AFC Series is an economically priced AC power source to provide reliable voltage and frequency simulation for general applications, such as testing for home appliance, electronic, medical equipment, lighting and other fields of production or R&D. Utilized PWM switching technology, AFC provides high quality pure sine waveform with output level up to 2,000kVA. The AC source is coupled with output voltage range of 5~300V and output frequency of 47~63Hz, 50/60Hz fixed. User can select optional frequency output of 2 or 4 times standard frequency and 400Hz.
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Frequency Reference
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Quartzlock time and frequency standards offer a complete range of cost effective and low noise in both atomic controlled (rubidium oscillator) and GPS controlled (off-air) time and frequency reference, calibrators and standards. These acurate time and frequency references are used in telecoms, aviation, nautical and precision test and measurement enviroments.
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Calibration Executive Software
CalEasy Series
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CalEasy is a full-featured, Calibration Executive software package that supports the verification and calibration of Marvin Test Solutions instruments. The software is intended for use by users that prefer to perform in-house calibration and verification for their Marvin Test Solutions instruments. By calibrating or verifying the instrument in-house, the time and cost associated with returning an instrument to Marvin Test Solutions for calibration service can be eliminated or reduced. CalEasy is also used internally by Marvin Test Solutions production to perform initial calibration and to recalibrate the instrument when received for service. This ensures that user and factory based calibration performance is similar. Depending on the specific instrument, standards instrumentation supported for calibration / verification includes a DMM, and a frequency standards module. Some modules require the use of matrix switch card.
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Computer Controlled, Solid-State RF Switch Matrices
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PMI offers a full product line of RF Switch Matrices that operate over the 20MHz to 40GHz frequency range. Three standard models are offered that cover this frequency range, namely 20MHz to 3.0GHz, 2.0GHz to 18.0GHz, and 18.0GHz to 40.0GHz. Any of the three models can be supplied as either a 4 X 4, 8 X 8, 16 X 16, or 32 X 32 non-blocking matrix.
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Varactor Tuned Gunn Oscillators
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Varactor tuned Gunn oscillators utilize high performance GaAs Gunn diodes and various cavity configurations to deliver moderate output power with low AM/FM noise and harmonic emissions. The oscillators are specially designed for a broader tuning bandwidth and an electrical tuning capability. The standard offering covers the frequency range of 8.2 to 110 GHz and features a self-locking set screw for fine frequency setting. While standard models offer a waveguide interface, a coaxial interface is also available. The performance of the oscillator can be further enhanced by adding an isolator, Gunn oscillator modulator/regulator, and temperature heater.
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GPS/GLONASS Disciplined Rb Oscillator
VCH-311
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GPS/GLONASS disciplined rubidium frequency standard model VCH-311 is a high stable frequency signal source (STANDARD mode), or precision frequency calibrator for any external standard signals (CALIBRATOR mode). The instrument contains multi-channel GPS/GLONASS receiver, time scale comparison unit and automatically adjustable Rubidium reference oscillator.
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GPS Clocks
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The Excelitas Rubidium Atomic Frequency Standard ( RAFS) is an exceptionally high-performance and high-reliability space-qualified rubidium clock developed for global navigation satellite systems.
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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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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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Frequency Reference
E8-X
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The Quartzlock E8-X is a breakthrough in exceptionally low cost, miniature, traceable, calibration-free, off-air frequency & time standards. These references maintain the high frequency & time accuracy required for demanding applications.
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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.
