The wiring of the interface took the most time. I had instructions from the manufacturer and did a lot of trial and error too, but once it all came together it was really cool.
HTs are not the best radios to use for Echolink because they are going to be used hard with long transmit times. The little HT I used here was pretty old and almost in the junk bin. If you use a new(er) HT be aware that it's going to be pushed to its limits.
This HT kicks out about 2.5 watts on high. By the time that 2.5 watts gets to a homebuilt J Pole 30 feet away the power is probably down to around 1.5 to 2 watts. But with that little bit of output I can hear the station 5 to 8 miles away (and that's through some heavily wooded hilly terrain.
The software is free at www.echolnk.org
Thanks for taking a look.