sea propagation

hi guys:

I am looking for info in order to calculate a line-of-sight datalink via a sea path. VHF/UHF range. Any equations, books, links are welcome

regards

If this is over the water, you will want the first Fresnel zone to clear the water.

http://www.maxstream.net/helpdesk/article-77 has some charts and http://www.softwright.com/faq/engine...Clearance.html has the equation you can program on a spread sheet.