In article ,
"David Eduardo" wrote:

Snip

In many markets, 10 kw is not enough to cover the market without being
trashed by manmade noise. Also, the relationship has to considder that low
band AMs cover much better than high band... a 5 kw on 550 outcovers vastly
a 50 kw on 1500.

Snip

You are referring to daytime reception only?

Considering daytime ground wave propagation, is the difference in
coverage low to high band due to ground conductivity where the high end
of the band has more loss per mile?

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Telamon
Ventura, California