wrote:
How far away from viewers are VHF signals typically broadcast?
(i.e. up to 1000 miles)
Pretty much line of sight is the rule at VHF and above. The line of
sight is baaed on the curvature of the earth, and modified by the
respective heights of the two stations.

A nice little on-line calculator is at:

http://www.qsl.net/kd4sai/distance.html

enter the heights of the two antennas, and it will calculate the
distance that you can expect to cover.


Sometimes there are propagation effects that will dramatically extend
the range, but these are the exception not the rule, and although
amateurs have a lot of fun with the effect, it isn't reliable for any
length of time.

- 73 de Mike KB3EIA -