"SouthDakotaRadio" wrote in message
...
In article , "David Eduardo"

writes:

Useful daytime AM service is generally limited to a radius of
no more than about 100 miles (162 km), even for the most powerful
stations.

The FCC apparently didn't take areas with high soil conductivity into
consideration when they wrote this.

It's David who is oversimplifying. That statement couldn't have come from
anyone in the broadcast allocation part of the FCC.

The FCC rules definitely require consideration of ground conductivity. The
old printed rules contain a conductivity map and propagation curves for each
AM frequency for each conductivity. THAT is the basis upon which AM
stations are allocated and power and directional antennas specified.

Here in South Dakota, strong AM daytime signals propagate for 200 or more
miles. KFYR, WNAX, KSDN, KFGO, KSJB, etc. are all examples of this. And
these
stations are only putting out 5,000 watts. Over in the Black Hills, KBHP
runs
25,000 watts on 810 and can easily be heard up and down I-29 on the
opposite
side of the state. That's 300-350 miles from the transmitter.

But that's okay. We're used to being ignored by the bureaucrats in
Washington,
DC :-)

Your complaint is entirely unjustified.