20050923: NOAAPORT fall eclipse period Sep 23-Oct 19

717 
NOUS72 KNCF 232207
ADMNCF
PLEASE PASS TO MIC, HIC, ESA, ITO, AND SOO
SUBJ:  AWIPS SBN INTERRUPTIONS DUE TO SOLAR ECLIPSE 
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FROM SEPTEMBER 26 THROUGH OCTOBER 19, THE SUN WILL ALIGN WITH 
THE AMC-4 SPACECRAFT IN SUCH A WAY THAT SOLAR RF ENERGY WILL DEGRADE OR
INTERRUPT RECEIPT OF AWIPS SBN TRANSMISSION AT VARYING TIMES BETWEEN
1800Z AND 2000Z.
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SBN SIGNAL TRANSMISSION DEGRADATION OR INTERRUPTION DUE TO 
INTERFERENCE MAY LAST ABOUT 20 MINUTES AND WILL OCCUR DAILY.  SITES AT
SOUTHERN LATITUES WILL BEGIN TO SEE THE EFFECTS IN LATE SEPTEMBER AND 
AS THE DAYS PROGRESS THE IMPACT WILL PROGRESS TO SITES FURTHER NORTH.
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ncf/kbb