Selection and Use of Precise Frequency and Time Systems
Handbook
This Handbook consists of ten chapters which describe basic concepts, frequency and time sources, measurement techniques, characteristics of various frequency standards, operational experience, problems and future prospects. The contents include detailed explanations and many references that can be consulted for additional details.
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Introduction by Radiocommunication Study Group 7 Chairman
The Radiocommunication Study Group for the Science Services (SG-7) was created through a structural reorganisation in 1990 at the Dusseldorf CCIR Plenary Assembly. At that time, the Space Research and Radio Astronomy Study Group (SG-2) was consolidated with the Time and Frequency Standards Study Group (SG-7) to form a new Study Group 7 on Science Services.
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