Frequency Standards
Devices that produce a known frequency.
See Also: Hydrogen Frequency Standards, Rubidium Standards, GPS Clocks
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Product
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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Product
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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Product
Digital-Phase-Lock-Loop
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The Quartzlock A6-CPS is a board level product designed for synchronising two stable oscillators. A typical example is the locking of a low phase noise OCXO to a rubidium frequency standard. The product uses a digital implementation of a standard phase lock loop.
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Product
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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Product
Frequency Converter
A6000-E1
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The Quartzlock A6000-E1 is a 1U rack mount, frequency converter for use with frequency standards such as rubidium, cesium, or hydrogen maser standards. Sine wave outputs are provided at frequencies of 2,048 kHz
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Product
Redundant Frequency and Timing Systems
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A unique feature of our frequency standards and distribution amplifiers is that the two separate parts of the redundant system are identical and can easily be inter-changed, for maintenance purposes. What we mean by this is that that we don't have a "Master" unit and a "Slave" unit. Whatever unit is powered up first becomes the master unit and the other becomes the slave unit.
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Product
Horn Antennas
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Broadband antennas, compared to half wave dipoles, reduce test time because the technician did not have to stop the test to adjust the dipole antenna for each frequency. Most compliance standards now require the use of such antennas. The latest version of Mil-Std 461E states the used of broadband double ridge guide horn antenna as the antenna of choice for frequencies above 200 MHz.
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Product
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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Product
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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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
Components - Passive Multipliers (FT)
FT Series
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Farran Technology manufactures a series of standard frequency multipliers which are available in fixed or tunable versions. GaAs Schottky barrier varactors are used to achieve the highest efficiency. The multipliers can be used with solid state or vacuum tube sources. A rugged compact mechanical design is used to maximise reliability.
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Product
Hydrogen Frequency & Time Standard
CH1-1035
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Hydrogen frequency and time standard Ch1-1035 is designed for precision storage and reproduction of the size of frequency and time units as part of measures and reference complexes.
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Product
VXI Rubidium/GPS Frequency Standard
3352A Series
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The Racal Instruments™ 3352A Rubidium frequency standard module and the 3352A-GPS, its GPS-disciplined companion, set a new standard for high density functionality in a single width VXI module. Using ANSI Standard M-Module building blocks, the 3352A series integrates the functions of a Rubidium oscillator and clock distribution together with an optional trigger distribution module and an optional digital I/O (DIO) module.
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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
Military Timing Solutions
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Brandywine is AS9100C certified and supports the environmental testing and specific interface standards needed for simple integration within military hardware. Brandywine offers many standard options for our military timing products including cesium frequency standards for international applications as well as the option to customize each product to fit your specific timing needs.
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Product
Frequency Standard Products
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The ES-110 generates a stable source of 10 MHz using GPS (Global Positioning System) satellites as a reference. If frequency distribution is needed, we offer the ES-210, a Quad 1x6 1/5/10 MHz Distribution Amplifier. The ES-210 provides four independent 1x6 Frequency DAs in a single rack-mount enclosure. The ES-410 is a four output version of the ES-110. The ES-410 was introduced and won Radio Magazine's Best of Show Award at the 2016 NAB Show.
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Product
Frequency Calibrator
VCH-313
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The frequency calibrator VCH-313 is designed to determine the frequency error and calibrate frequency standards of various types based on the signals of the NSC SNS GLONASS/GPS .
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Product
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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Product
GPS Time and Frequency Standards
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Our range of GPS disciplined Rubidium Oscillator, OCXO and TCXO, low cost and stable, time and frequency references in a variety of rack mount and desktop sizes to suit all applications. For a technical discussion of GPS go here or select a link below for product information.
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Product
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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Millimeter-Wave Automated Accelerated Reliability Test Systems
nm-Wave AARTS System
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AARTS fully integrated, automated, turnkey system provides flexibility and accuracy in determining RF and DC performance degradation with aging to predict life expectancy for compound semiconductor devices. Our millimeter-wave Automated Accelerated Reliability Test Systems (AARTS) and fixture solutions are available in standard frequency ranges from 26.5 to 67 GHz.
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Product
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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Product
Rubidium Frequency Standard
RFS VXI
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*RFS VXI is designed to work as part of information measuring systems based on the VXI bus as a rubidium frequency standard.*RFS VXI is intended for use as a highly stable laboratory signal source for checking generator devices, time-frequency measuring equipment and other equipment, synchronizing navigation systems.*The RFS VXI contains two independent rubidium reference oscillators: main and standby.*RFS VXI is a VXI standard, register based device and measures C-1.*RFS VXI implements the "Self-control" mode, which checks the output frequencies of the rubidium standard.
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Product
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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Product
3207a GPS/GNS Frequency and Time Reference
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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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Product
IRIG Time Code Receiver & Generator Module
TCR180
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Meinberg Funkuhren GmbH & Co. KG
The module TCR180 has been designed to receive and to generate IRIG-A/B/G, IEEE 1344, IEEE C37.118 or AFNOR NF S87-500 time codes. It is used in applications like data acquisition, standalone computer time synchronization (for systems without a network connection or higher accuracy requirements) or as an IRIG converter device. The frequency locking of the master oscillator to the time code system enables this module to generate fixed and programmable standard frequencies with high accuracy and stability. Various oscillator options allow the cost efficient implementation of different requirements concerning the accurracy of the outputs. The generator of the IMS-TCR module generates pulses per second and per minute and per hour. Four programmable outputs are also available. The pulses are synchronized to UTC-second.
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Electrical Standards
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To verify the performance of an electrical calibrator or dc calibrator, you need an electrical standard. Fluke Calibration standards are found in primary calibration laboratories across the world. A wide range of electrical standards and frequency standards are designed to meet the needs of today’s laboratories for traceability and quality accreditation while also being portable, simple to use, and easy to support. Electrical standards include: Voltage standards; ac/dc transfer standards; ac measurement standards; resistance standards; ratio standards; current shunts.
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Product
High Frequency Standard Capacitor
GenRad 1403 Series
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The GenRad 1403 Standard Air Capacitors are stable, three-terminal standards in decimal values from 0.001 pF to 1000 pF. For measurement at 100 pF and below, a three terminal connection increases the accuracy by eliminating the uncertainty in the measurement introduced by the capacitances between the capacitor terminals and ground.
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Product
Distribution Amplifiers
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The Quartzlock range of distribution amplifiers are intended for use when multiple outputs from a single frequency standard/generator are required. This may be encountered in engineering labs, national standards labs, research and development, calibration labs and production. This is vital for the distribution of signals from other precision frequency standards like Hydrogen Masers, Cesium oscillators. For a technical discussion about distribution amplifiers go here or select a product range below.
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Product
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.
