The old AM border blasters were legitimately "insanely powerful". John R. Brinkley's XERA was transmitting at 1 megawatt EIRP back in the 1930s. It covered almo

The old AM border blasters were legitimately "insanely powerful". John R. Brinkley's XERA was transmitting at 1 megawatt EIRP back in the 1930s. It covered almost the whole of the US and parts of Canada, even on a crystal set. Today, the Solt transmitter in Hungary operates at 2 megawatts. https://en.wikipedia.org/wiki/Border_blaster https://en.wikipedia.org/wiki/Border_blaster https://en.wikipedia.org/wiki/John_R._Brinkley#Brinkley_and_radio https://en.wikipedia.org/wiki/John_R._Brinkley#Brinkley_and_... https://en.wikipedia.org/wiki/Transmitter_Solt https://en.wikipedia.org/wiki/Transmitter_Solt