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In article pan.2007.12.26.07.21.35.415592@blueplanet, Barnard Peters
wrote: On Tue, 25 Dec 2007 21:33:00 -0600, msg wrote: Mike, Thanks for your reply. It's CODAR. Radar applications used to measure coastal currents. See the following URL: http://www.thecoolroom.org/instrumen...ment_codar.htm In a previous thread, the CODAR speculation was discussed, but due to the extremely powerful signals, heard across the U.S., it was felt that this was a less than well-disclosed emission. CODAR is according to various sites describing existing systems, low power. Quoting from the site you referenced above: " Each remote site contains two antennas and a small 6'x 8' shed. One antenna (left) transmits a radio wave out across the ocean surface. The power of this transmitted signal is only 40 watts." Any amateur doing QRP would envy the punch of this signal at only 40w if this is truly the source ;-) I've had the initial researchers who developed CODAR confirm this signal years ago. They could not believe the propagation as I was over 1000miles from the test site. Unfortunately, now that it's in full commercial deployment, there seems to be hundreds of sites on several bands. Highest I've heard has been 19Mhz. I've tried to file a complaint with the FCC but unfortunately there are no legal avenues as it has been approved by the FCC. Perhaps the ITU can take complaints as this signal seems to block international broadcast? It would not be so bad if these things would ID at the top of the hour so at least propagation could be tracked. Absolutely *stunning* signals for 40 watts :-) Do I smell governmental dissemblance? -j |
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