How do I set up the repeater towers to talk long distance like I have one in Calhoun and there is one in fairmount . If my raido won't reach the fairmount repeater can I use the Calhoun repeater to reach it ? Would I have to put one on input and one on output ? Alsonhownwould I listen to the fairmount tower from Calhoun would it be the reverse of broadcasting to it?