Frequency Standards
Devices that produce a known frequency.
See Also: Hydrogen Frequency Standards, Rubidium Standards, GPS Clocks
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2210A & 2211A Quartz Frequency Standards
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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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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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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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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Rubidium Frequency Standards
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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Electrical Standards
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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Computer Controlled, Solid-State RF Switch Matrices
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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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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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 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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Cable Locating Kit
CL-300
The NEW CL300 cable locating kit consists of a portable, holstered pipe & cable locator with an industry accepted 33kHz transmitted frequency. Comes standard with 512 Hz detection capability. With an added 512Hz transmitted device or traceable duct rodder the CL300 becomes the perfect tool for empty duct work locating. This instrument is capable of detecting all electrical, telecommunications and wire circuits—whether direct buried cables or those within conduits—using direct connect or close induction methods. This locator equipment features Auto & Manual adjustments for both transmitter power and receiver sensitivity to assist with a variety of locate work and congestion.Applications
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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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High Frequency Standard Capacitor
GenRad 1403 Series
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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Hydrogen Frequency & Time Standard
CH1-1035
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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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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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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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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Cellular Antennas
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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Digital-Phase-Lock-Loop
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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Rubidium/GPS Frequency Standard
PXIe-3352
The Astronics Test Systems PXIe-3352 frequency standard module sets a new standard for high density functionality in a PXI module by combining a Rubidium oscillator with a GPS receiver into a single, compact instrument.
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Military Timing Solutions
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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Multi-Channel Phase Comparator
VCH-315M
Multi-channel phase comparator VCH-315M, together with a computer and special software, is designed for simultaneous measurement of frequency instability characteristics (RMS, RMS) of a group of sinusoidal signals of standard frequencies 5; ten; 100 MHz.
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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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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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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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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 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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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.
