Frequency Standards
Devices that produce a known frequency.
See Also: Hydrogen Frequency Standards, Rubidium Standards, GPS Clocks
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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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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
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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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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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
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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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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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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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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Product
Probe Antennas
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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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Product
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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MEGA-POLE® Series
MEGA-POLE™
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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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Product
Scalar Feed Horn Antennas
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Scalar feed horns are offered as both standard and custom build models with either a circular or rectangular waveguide interface. While scalar feed 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 standard models operate across the full waveguide band and offer 17 dBi nominal gain, 25 degrees half power beamwidth and a -28 dB side lobe level at center frequency. The below standard offering covers the frequency range of 8.5 to 140 GHz. However, other frequencies or gain values are also available.
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Product
4210A Rubidium Frequency Standard
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Precise Time and Frequency, Inc.
The ptf 4210A Rubidium Frequency Standard is a unique solution for providing a highly stable, low phase noise, frequency reference for applications requiring atomic reference stability performance.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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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
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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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
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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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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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
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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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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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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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
Rubidium Oscillators
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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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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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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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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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Frequency Dividers
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Precision Test Systems manufacturers' various divider boards as options to its range and frequency standards and distribution amplifiers.
