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Radio Propagation


Solar X-rays:
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D-Region Absorption
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Created by PA4RM

A working prototype of OSCAR 1, Amateur Radio’s first satellite, will be on display at AMSAT’s Dayton Hamvention® booth. AMSAT’s exhibit will be in Building 1 (Maxim Hall) at the Greene County Fairgrounds and Expo Center in Xenia, Ohio. OSCAR 1 (Orbiting Satellite Carrying Amateur Radio) was launched into orbit in 1961, at the dawn of the Space Age. Built by a group of California-based radio am...

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