[R-390] Curious

[Jim Brannigan]

At one time the FCC did not issue licenses for domestic shortwave broadcasters.  Organizations that wanted to reach the US market were located in Central and South America.

With my renewed interest in SWL'ing I notice many domestic SW broadcast stations.  When did the rules change ( I know it has been a while)?
What was the catalyst for the rules change, lack of standard BC spectrum?

From the narrow marketing niche of these stations, I'm guessing that it is cheaper to build a SW broadcast station, than a standard AM or FM station.
What power levels are they running and what kind of antennas?

Thanks, Jim


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