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[quote=”scwis”][quote:14fc1be10a]Gosh, if we all believed the simulations, there wouldn’t be any Part 15 broadcasting, and then how much fun would we have?[/quote:14fc1be10a]
Computer simulations that are valid for predicting the performance of MW AM broadcast antenna systems (and they are) do not suddenly fail because the radiator is electrically short, the “ground” is poor, and the available power is low. The equations allow for that.
A computer simulation does not imply that Part 15 AM “can’t work.” It simply calculates the field strength vs distance from the Part 15 radiator for a given set of conditions, according to equations that originated from carefully measured data taken under controlled, real-world conditions.
People may get enough fun and “coverage” from their Part 15 AM station for it to be completely satisfactory to them. I am not discounting that at all. But that may require listening to a noisy signal on the fringes of the coverage radius — which is something that a commercial radio station could not tolerate.