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
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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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Frequency-Conversion
A comprehensive range of frequency convertors to meet a wide range of needs.
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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.
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Conversion
A range of frequency convertors with useful specifications and different rack mount sizes.
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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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Signal Stability Analyser
A self-contained phase/frequency analyser. Its area of use includes measurement of frequency stability and spectral purity of signal sources from 3MHz to 919MHz. Stability of amplifiers, cables, or other passive devices can be measured. Allen Variance (AV) and Power Spectral Density (PSD) graphs are automatically generated.
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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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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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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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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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Space Qualified Oscillators
Our range of space qualified precise low noise rubidium oscillators. These highly accurate space qualified frequency references are used in Satellite Navigation Systems, Intelligence Reconnaissance Satellites, Military Communication Satellites, Deep-Space Survey and Space Stations
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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.
