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MHM 2010 Active Hydrogen Maser Precision Frequency Reference Symmetricom Contact Info Send To Colleague Symmetricom's MHM 2010™ is the only commercially available active hydrogen maser with stand-alone cavity switching auto tuning manufactured in the USA. This technique enables the MHM 2010 to deliver long-term stability normally only attributed to the most stable of cesium atomic standards. ...more -
A0 Frequency Standard, Measurement & Distribution System Quartzlock (UK) Ltd. Contact Info Send To Colleague The Passive and Active Hydrogen Maser Frequency Standards and associated instruments are available through Quartzlock. These units have been built in substantial quantities for the last 30 years and form the major time scales in Germany, Brazil, Spain, Japan, Russia, China & the UK. The instruments are manufactured outside of the United Kin ...more -
Passive Hydrogen Maser Quartzlock (UK) Ltd. Contact Info Send To Colleague The Passive Maser principle of operation is based on a 5 MHz quartz crystal oscillator, frequency locked to the hyperfine transition of the hydrogen atom. The Passive Maser is specifically designed to provide an alternative technology to the high performance option cesium oscillators - the Maser's stability specification is at least a factor of ...more -
A5 Series Distribution Amplifiers Quartzlock (UK) Ltd. Contact Info Send To Colleague 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 fr ...more -
Active Hydrogen Maser Quartzlock (UK) Ltd. Contact Info Send To Colleague The Active Hydrogen Maser technology provides the best known frequency stability for a frequency generator commercially available today. Active masers will be used when the best stability is needed in a time domain of 1 sec. to a day. At a 1-hour averaging time, the Active Maser exceeds the stability of the best known cesium oscillators by a fa ...more
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