"Fred W4JLE" wrote in message
...
Walt, while this would be wonderful information if I were broadcasting
during the day on 75 meters, how is it applicable to those of us who don't
care about groundwave?

Well, Fred, it's because it has everything to do with how much of your xmtr
power is heating the ground vs how much is being radiated at whatever frequency
you're using. We're not even talking about ground wave, it's how much power is
radiated, period.

Walt