Walki Talki...anyone...!!!?

Question

Hey guys... anyone knows how to create or make simple and cost effective with limited range range(1-2km) walki talkis....plz answer me...so that it would be helpful for my projects...Thank You... Arvind...(^_^)

Answer 1

This is as close as I can come.

http://home.howstuffworks.com/science-pr...