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Frequency Standards
Devices that produce a known frequency.
See Also: Hydrogen Frequency Standards, Rubidium Standards, GPS Clocks
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Time & Frequency Standards
Meridian II Precision TimeBase
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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GPS Time and Frequency Standards
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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Electronics & Power
Excelitas Technologies offers a wide range of high-performance electronics, power and energetics technologies to drive your most demanding photonic systems. Our Electronics & Power offering includes Capacitor Chargers, Spark Gaps and Transformers, High-Voltage DC Power Supplies and Atomic Frequency Standards. Our Energetics portfolio includes Electronic Safe & Arm devices, Detonators, Ignition Safety devices, and Rocket Motor Initiators.
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Fiber Optic Modem
VCH-608
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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GPS Clocks
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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Low G Sensitive Oscillators
Precision Test Systems is increasingly becoming a world leader in ultra-low phase noise (ULN) crystal and rubidium oscillators. We manufacture the CFS10B crystal frequency standard and the RFS10E and RFS10F rubidium frequency standards. All these models can also be locked to the global satellite service operated by the USA (GPS), Russian (GLOSNASS) and Europe (Galileo). We also have a complete range of distribution amplifiers to compliment these frequency standards.
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GPS Frequency Standards
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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Frequency Standard Products
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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Ultra Low Noise, Rubidium Frequency Standard.
A10-M
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 Calibrator
VCH-313
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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Phase Locked Oscillators
Phase locked oscillators (PLO) utilize state-of-the-art planar circuits, three-terminal devices and dielectric resonator technology to generate high-quality microwave signals at lower frequencies. Frequency multipliers, amplifiers and filters are used to extend the low frequencies for higher frequency requirements. The standard offering covers the frequency range of 2 to 110 GHz and provides both internal and external reference options. The frequency stability and phase noise are dependent on the oscillator reference type.
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Rubidium Instruments
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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Climate Chamber
VCH-A18
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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Macintosh Audio Spectrum Analyzer
iSpectrum
iSpectrum is an easy to use audio spectrum analyzer that allows you to view live audio in a standard frequency plot, a stereo oscilloscope view and a waterfall display.
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Millimeter-Wave Automated Accelerated Reliability Test Systems
nm-Wave AARTS System
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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Calibration Executive Software
CalEasy Series
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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Hydrogen Frequency & Time Standard
CH1-1006
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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Frequency Converter
A6000-E1
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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Disciplined Frequency Standards
2960AR and 2965AR
The 2960AR has a rubidium timebase and provides two 10MHz and one 5MHz sine wave outputs. The 2965AR has a rubidium timebase and provides one 10MHz, one 5MHz and one signal generator output. The signal generator output uses Direct Digital Synthesizer (DDS) technology and is programmable from 100Hz to 50MHz via an RS232 serial interface. Both models can be disciplined by a 1pps input signal and provide a 1pps output. The 1pps input is typically provided by the GPS Frequency output from a device like a smart GPS receiver or antenna. The Novatech GPS1 Smart Antenna is available as an accessory to provide a complete turnkey solution.
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Frequency Converter
A6
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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Active Type Hydrogen Frequency
CH1-1003M
Hydrogen frequency and time standard Ch1-1003M is designed for precision storage and reproduction of the size of frequency and time units as part of measures and reference complexes. Main applications: – national time and frequency services; – ground stations for tracking and control of satellite radio navigation systems; – radio interferometry with extra long base.
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Frequency Standards
Brandywine's frequency standard products are used in telecommunications, navigation and targeting systems, radar systems, satellite command terminals, advanced communications and precision test and measurement applications. These products are cost-efficient and compact, forming highly stable reference signal products for precision test and measurement applications.
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Rubidium Frequency Standard
RFS VXI
*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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GPS/GLONASS Disciplined Rb Oscillator
VCH-311
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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Components - Passive Multipliers (FT)
FT Series
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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Redundant Frequency and Timing Systems
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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Horn Antennas
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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Reference Frequency Generator
MFCh
*Frequency reproduction accuracy ± 2 x 10 -9 *Output frequency 1 Hz - 10 MHz *Output pulse signal 1 kHz The MFC is designed to generate high-frequency pulse signals with a frequency of 1 kHz and a frequency in the range from 1 Hz to 10 MHz along two output lines. The MFC is designed to operate in measuring systems based on the VXIbus trunk. In the MFC, a rubidium frequency standard is used as a reference frequency source. Time to reach the mode when the power source of the rubidium standard is turned on, no more than 10 min
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Time & Frequency Systems
Brandywine Communications offers high quality time and frequency GPS Synchronized clocks with budget friendly costs in a variety of formats such as the NFS-220 and the NFS-220 plus. Built at our ISO9001 accredited design and manufacturing facility in Tustin, CA, these U.S. made time and frequency standards incorporate a GPS receiver which continuously calibrates the internal precision clock to provide both time of day and frequency in a variety of output formats and interfaces.
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VXI Rubidium/GPS Frequency Standard
3352A Series
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.
