Accession Number : ADP004583

Title :   Improved Master Clock Reference System at USNO (U.S. Naval Observatory),

Corporate Author : NAVAL OBSERVATORY WASHINGTON DC

Personal Author(s) : Winkler,G. M. R.

Report Date : 02 APR 1984

Pagination or Media Count : 12

Abstract : The first phase of the NAVELEX/NRL/USNO Master Clock (MC) upgrade program has been completed with the delivery of two VLG11B Hydrogen Masers to the U.S. Naval Observatory (USNO). After installation in a specially prepared Maser Laboratory with redundant environmental control, and a ten-day burn-in operation, the masers were independently tuned. Their subsequent performance caused a review of our plans for their operational use as part of the USNO MC complex. A revised concept is the basis for system integration presently in progress. (Author)

Descriptors :   *CLOCKS, *MASERS, HYDROGEN, INSTALLATION, TUNING

Distribution Statement : APPROVED FOR PUBLIC RELEASE