Has anyone used a full wave Round Loop antenna, on 20 meters ? I have used a 4 sided full wave, but never a round one. What would be the best way to match it to the radio , for the best power transfer ? And what is the best feed point location ? I was going to use 1/2 " PVC to keep it close to Round and a 12ga wire inside of it, and build it for 20 meters. Would that be a good Idea ? Thanks.