In order to route my antenna feedlines out of my house, I have to pass through a wall, into the garage and through another wall. All of this involves four 90 degree turns. I am wondering what the possible issues would be with using 2 inch electrical conduit with a couple of conduit bodies (small housing with a cover to help pull wire through an angle). My worry is that the tight turns that these would introduce are not good for coax, specifically LMR 400. Without a conduit though, I fear that the lines could be damaged being exposed in my garage.
I spoke with an elmer in my club and he recoomended I use Pl-259 90 degree elbows inside the conduit body. I had heard that these tend to attenuate signal rather greatly, but he said that was not his experience. I then saw this video https://www.youtube.com/watch?v=5AgFum5K7bw which also supports his claim.
What is a good solution?