[BC] FM bays, slight drift

[Bill Weeks]

A little less than a foot.
To look at it another way, from the top of a 100 meter tower, the actual 
horizon would be 22.3 miles away.
Using the FCC 4/3 earth assumption, the radio horizon would be 25.5 
miles away.
The depression angle, down below the horizontal, from a 100 meter tower 
to a spot 15 miles away is a third of one degree for the FCC assumption 
about the earth.

Bill

Tom Bosscher wrote:
> OK,
>    This has little to do with whether to go with 1 bay or 16, but about 
> the curvature of the earth...
> 
>    Assuming the earth as a round ball, ( I know it isn't a perfect 
> ball), and assuming Kansas type dead flat land, just how much does the 
> earth "drop" after 1 mile? I know I should know this, and it probably is 
> high school math, but I'm just a curious and lazy kind of guy...
> 
>    the other white tom
> 
>  
> 
> 
>