Frequency Standards
Devices that produce a known frequency.
See Also: Hydrogen Frequency Standards, Rubidium Standards, GPS Clocks
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Hydrogen Frequency & Time Standard
CH1-1007
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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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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Microprocessor Development System
DS-M8
# 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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MEGA-POLE® Series
MEGA-POLE™
The MEGA-POLE filter series covers the standard frequency bands within the 30 to 450 MHz range. This new filter series provides excellent selectivity while maintaining very low insertion loss. The product line also has exceptional RF power handling capability with a high third order intercept point. The MEGA-POLE filter series can be used for transmitter applications to reduce power amplifier noise, harmonics and intermodulation products, to provide bi-directional filtering directly at a transceiver’s antenna port, or other applications requiring extremely linear, high power RF bandpass filtering. It has been designed for rugged military environments per MIL-STD-810.
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Probe Antennas
Probe antennas are offered as both standard and custom models with a rectangular waveguide interface. Probe antennas can only support linear polarization. These antennas are often used to measure the gain of other antennas by comparing the signal levels of the probe antenna and antenna under testing. The standard models operate across the full waveguide band and offer 6.5 dB nominal gain and 115 and 60 degrees half power beamwidth at center frequency. The below standard offering covers the frequency range of 8.2 to 170 GHz.
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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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Frequency Counter with Rubidium Timebase
SR625
Stanford Research Systems, Inc.
The SR625 Frequency Counter is a NIST traceable frequency counting standard for calibarating base stations, transmitters and many other types of communication systems.
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Frequency Reference
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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3207a GPS/GNS Frequency and Time Reference
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
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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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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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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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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Ultra Low Noise Disciplined Frequency 4220a Standard with Rubidium and OCXO Clean-Up Oscillator
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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Frequency Dividers
Precision Test Systems manufacturers' various divider boards as options to its range and frequency standards and distribution amplifiers.
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Varactor Tuned Gunn Oscillators
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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Conical Horn Antennas
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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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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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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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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Distribution Amplifiers
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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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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Cold-Atom Frequency Standard
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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Frequency Standards
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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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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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.
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Disciplined Frequency Standard
2975AR
The 2975AR contains a rubidium timebase and provide one 10 MHz, one 5 MHz and one Signal Generator output. The Signal Generator uses Direct Digital Synthesizer (DDS) technology and is programmable from 100Hz to 50 MHz using front panel controls or from an RS232 serial interface. The 2975AR can be disciplined by a 1pps input signal and provides a 1pps output signal. 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 Reference
E8-X
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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6GHz Dual Frequency Synthesizer moduleValon
5009
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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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.
