VoiceofWayne said:
Where these make the most sense is with daytimers, such as 1520 WIZZ Greenfield. No PSA, no PSSA, no nothing, because they protect that big station in Buffalo that we all know.
The Greenfield 1520 is entitled to a PSSA--if they want it and apply for it. Can't say what power, but since they are directional away from Buffalo, most likely it would be tens of watts, from Greenfield sunset to Buffalo sunset (an average, I'd imagine, of 30 minutes). After Buffalo sunset, Greenfield lies well within WWKB's 0.5 mV/m 50% skywave contour, so the PSSA would have to end at Buffalo sunset. Also, WWKB's "daytime" skywave during the half hour or so when the sun has not yet officially set in Buffalo, is likely so strong in Greenfield that the tens of watts WIZZ could get would most likely not produce a listenable signal beyond the ends of WIZZ's ground radials. Still, the half hour a night is potentially economically valuable because it falls within PM drive in most months--and not everybody who buys time takes the trouble to listen;>)