Thank you, Dan. I do have Bob's book, & I agree that it is a great resource. I don't think that the issue/question of running the antenna wires in the same bundle with other wiring is really specifically addressed there though. I'll have to look again. I'd really be interested in any "real-world" experience with the Kitfox specifically in this regard. Do most builders bundle the wires together, or seperate the antenna coax (especially the transponder) from other wires? That's what I'd like to know. I'm running RG-400, & have one transponder & one comm antenna.