[BC] LPFM

[Richard Fry]

Willie... wrote:
>To be 100% legal with the P15 FM rules, your signal
>would only have a radius of about 100' on a very clear
> frequency to a good receiver, direct line-of-sight.
______________

Coverage can be better than that, actually.  The link below shows the 
calculated fields for several values of low ERP. The legal Part 15 FM 
system is plotted in red, and has a field between 2 and  3 ?V/m at 300 
meters (~984 feet).

That's probably about the limit even with a clear path, a good receiver, 
and a good receive antenna.

  http://i62.photobucket.com/albums/h85/rfry-100/6417f684.gif

RF