I built a nice looking Yagi to work sats with a full duplex radio, but the elements are made of copper and so bend easily and the antenna is heavy. Click to see the full picture: I would like to rebuild it from something lighter, like aluminum. I bought some called "hobby tubing" but that is also very soft and bends easily. Where do you guys buy more rigid aluminum tubing with a small diameter? Or maybe other metal tubing suitable for satellite antennas. I saw some places for larger diameter but haven't had luck with anything around 1/4'.