Owen Duffy wrote:
Look up the Friis Transmission equation on Google.

Here is a little application for solving the Friis Transmission equation:
http://www.vk1od.net/software/fsc/ .


Andy asks:

The Friis equation at the above website states that the distance
exponent may be a number different than "2".

Can anyone here explain why a number other than "2" could be
used, and under what conditions ??

Thanks,

Andy W4OAH