I searched and found very little on antenna information. The original builder of my plane attached the comm antenna to the battery shelf behind the baggage area. Nice clean installation but since it is surounded by tubing, the radio doesn't transmit very well at all. I want to relocate the antenna outside the fuselage. I am looking for ideas on both where to put it and how to mount it. I don't see any plates or anything on the upper part of the fuselage. There is a plate on the bottom but that is where I have my transponder antenna. Any ideas or suggestions?