I know this is off topic, but I also know there is a wealth of knowledge here. I need to install an outside antenna to ensure continuous cell phone access from my home QTH. The commercial 7-element Yagi is over $100. I know I can make one cheaper than that out of 1/8" dia. aluminum tubing or welding rod. I just don't know what would be the best way to feed it. It would be great to use the feed system seen in Sinclair antennas i.e the folded dipole with the feed line going through the inside of the tubing but I don't know if coax that small is available in the odd impedence required to match the antenna properly to 50 ohm coax . There are other methods like the Delta match, Gamma match etc. but all of these require the feed point to be exposed to the weather. Has anyone tried to build one of these? Please share your experiences.
Doug VE7DRF
