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Slow Scan TV in 1973 ( SSTV )
DL-DX RTTY Contest Rules Sponsored and organized by DL-DX RTTY Contest Group (DRCG, www.drcg.de) 1. Object Contact and exchange QSO information with as many stations as possible. Any station... Read more
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A juried research paper in Nature, “Oscillations of the baseline of solar magnetic field and solar irradiance on a millennial timescale,” suggests that a “grand solar minimum” — similar to t... Read more
Here are all the links- http://goo.gl/FgPgwH You asked for it! Well, one of you did. In this video we take the Midland Micro Mobile GMRS radio and build it into a self-contained solar... Read more
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The Tadiran SDR-7200HH is specifically designed for dismounted soldiers, providing them with voice and data communications together with command and control (C2) applications from a variety... Read more
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Over-the-horizon (OTH) radars continue to plague various amateur radio bands. Those operating on exclusive ham radio allocations have been complaining for years, but military systems have a... Read more
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