Yeah but at what antenna height? I am at 38 ft and have a little 25 watt unit that goes 2 miles in a city setting, very tall homes and buildings around, My 100 watt unit I have goes well beyond 7 miles in that same city setting, this is probably the worst possible area to get a good signal out. So with that said I am finding this chart to be wrong, the antenna height for this chart had to be low. Transmitter brand and build has a lot to do with this as well. If this chart had specs would be fantastic.
Much depends on 1st adjacent and co-channeo interference you will receive. if you are the minimum distance from such a station the chances are good you will be impacted with some interference.
built by multi.lectical