Quartzlock (UK) Ltd.
For more than 5 decades Quartzlock have been specialising in measurement science, and building off-air (LF and GPS) and atomic (rubidium and hydrogen) frequency referencing standards and calibration equipment. Our products are used worldwide for referencing and calibration at the highest level in research and development, production testing, frequency referencing and time & frequency metrology.
- +44 (0) 1444 232 967
- sales@quartzlock.com
- 179 Junction Road
Burgess Hill
West Sussex, England RH15 0JW
United Kingdom of Great Britain and Northern Ireland
Categories
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product
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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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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Frequency Generation
Quartzlock time and frequency generators offer a complete range of cost effective and low noise sources for a variety of applications. These acurate time and frequency generators are used in telecoms, aviation, nautical and precision test and calibration measurement enviroments.
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Conversion
A range of frequency convertors with useful specifications and different rack mount sizes.
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Digital Phase Locked Loop (PLL)
A6-CPS
The A6-CPS digital phase locked loop (PLL) can be customised to a specific application and shipped ready for use in production.
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Three-State Kalman Filter Algorithm
A6-1PPS
The A6-1PPS uses a three-state Kalman filter algorithm to measure and correct the frequency offset of the oscillator with respect to the 1pps input.
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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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Oven-Control-Oscillator
The Quartlock ranges of OCXOs are recognised throughout the world for quality and performance. They are used extensively in radio communications, satellite, paging, cellular phone systems and many other applications.
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Rubidium Oscillators
Our range of precise low noise rubidium oscillators in a variety of sizes to suit all appliations. These acurate frequency references are used in telecoms, aviation, nautical and precision test and measurement enviroments.
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Timing Modules
Quartzlock provides Timing Modules for network timing, reference disciplining to various input references such as 1PPS, GPS receiver and Frequency References.
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1pps-Locking-Modules
This is a module to control an OCXO or Rubidium oscillator with 1PPS from a GPS receiver. The Quartzlock A6-1PPS uses a 3 state Kalman filter algorithm to measure & correct the frequency offset of the oscillator with respect to the 1PPS input. Time-tagged input 1PPS to 200ps resolution & <1ns jitter. Analog interpolator is self calibrating. Interface to GPS decodes messages & extracts relevant info. i.e. time correction data for 1PPS output, this has AVAR of the Rb or OCXO i.e. 5 x 10-12/s & <100ps RMS jitter. The output is steered to time coincidence with GPS time/UTC to 1ns resolution. Holdover initiated by 1PPS fail or data from GPS RX that 1PPS is inaccurate. During holdover, measured frequency offset & drift steer the oscillator & 1PPS is still available.
