[BC] Poor Reception Areas

[Tom Dimeo]

In April 1994 I spent a few days on the Upper Peninsula of 
Michigan in Ishpeming.  During the day I could hear only a 
couple local AM stations and at night the skywave signals 
were very weak.  Could it be all the iron in the ground that 
makes this area so poor for AM reception?

When I was there the big story was that the ice on Lake 
Superior was breaking up.  The lake had been conpletely 
frozen over that year.

Tom

** RichardBJohnson at comcast.net Wrote: **
>There are places in the US, and certainly in other countries 
>as well, that do not seem to comply with normal radio 
>propagation characteristics. They are called "radio quiet 
>zones" and the government even takes advantage of these spots 
>to site special radio receivers.
>
>It is interesting that along highway 50 out of Grand 
>Junction, Colorado going towards Nevada City, there are 
>places where NOTHING can be heard on an automobile radio, 
>neither AM nor FM! It is as though all signals from 
>everywhere, ground-wave, sky-wave, and even tropospheric 
>ducting all cancel out at these spots.