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  • Cospas-Sarsat

    02/03/2009 | Distress Beacons at 121.5 and 243 MHz Phased Out

    As of February 1, the Cospas-Sarsat (Search and Rescue Satellite Aided Tracking) satellites are no longer monitoring distress beacons at 121.5 and 243 MHz. All mariners, aviators and individuals who use emergency beacons on those frequencies will need to
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  • 12/26/2008 | The K7RA Solar Update

    Snow has fallen all week here in Seattle, and the Sun is still void of spots. We last saw sunspots on December 10, 11 and 12. The solar flux -- a measure of 2.8 GHz radio energy from our Sun -- has been running between 68-69 for weeks, except for December
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  • 10/31/2008 | The K7RA Solar Update

    Solar Cycle 24 is slowly building momentum. We saw sunspots for eight days in a row -- October 10-17 -- then 12 days of no spots. Another sunspot -- number 1007 -- appeared on October 30 from Solar Cycle 24. It is a high latitude sunspot and may provide s
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  • 10/25/2008 | Next Round of PAVE PAWS Mitigation Contacts Begins

    On Wednesday, October 22, the FCC notified the ARRL that they would immediately begin making direct contact with owners or trustees of approximately 40 repeaters. The US Air Force identified these repeaters earlier this year as contributors to the harmful
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  • 10/10/2008 | The K7RA Solar Update

    A familiar sight appeared this week, as a sunspot emerged for one day, then was gone. Based on its magnetic polarity and high position in our Sun's southern hemisphere, sunspot 1003 was a new Solar Cycle 24 sunspot; like all the other recent sunspots, it
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  • 09/12/2008 | The K7RA Solar Update

    A new sunspot -- number 1001 -- emerged on Thursday, September 11. It is actually a single group with two small magnetic disturbances; we hope it is not another like the last sunspot, a weak one that barely emerged on August 21-22. That spot was so small
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  • 08/01/2008 | The K7RA Solar Update

    July ended with no sunspots at all -- save for three days, July 18-20, when one weak sunspot group appeared and faded from view. Sunspot numbers for those days were 11, 12 and 11. Sunspot numbers for July 24-30 were 0, 0, 0, 0, 0, 0 and 0 with a mean of 0
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  • 3BEARS

    05/29/2008 | Amateurs Assist with Florida Fires

    Amateur Radio operators in Brevard County, Florida responded in a support role during a recent spate of wildfires that ravaged the towns of Palm Bay and Malabar. The fires, all of which were deemed "suspicious" by fire authorities, began on Sund
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