Reverse Beacons are becoming one of the most important real time tools for monitoring propagation conditions around the world. Basically, a Reverse Beacon is a receiver that detects a station calling CQ and measures its strength. It then broadcasts this information to web sites, which collect this data and make it available to everyone. To learn how this technology is being used today by hams and scientists, please go to their web site http://reversebeacon.com . A lot of us use this information in programs like DXMAPS.
The reverse beacon people just published some really interesting data on propagation during the 2015 CQWWDX CW contest. The Reverse Beacons around the world listened to stations calling CQ during the contest and reported their strengths at the respective locations. What is really phenomenal about this is that thousands of transmitting stations and reverse beacons were activated simultaneously around the world for 48 hours. This kind of data would not have been possible without the Hams. http://reversebeacon.blogspot.com/2015/12/2015-cqww-cw-stats-and-trivia.html Nizar K0NM
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