@Bob, iprobably didn’t see your edits, I started posting a hour before the family left, but I have been working on it while I posted (so I didn’t reread) and might have missed something.
A Quad??? How do I do that (not sure what one is). I’m indoors but have a few spots where there is libral space for an antena, and I have a remote rotator).
@bjkg, yea I have welded before (I have a degree in gunsmithing), and thats a great idea. If this design works, going to a heaver rod (and something stiffer than soft coper like I am using) might be much better. I got the arms as straight as I could, but copper is too soft to get it nice and straight. maybe revision 2 would work with that (I like building things).
About the reflective backboard? I just kind of guessed that it was to block background signals. I am not going to do it now (it should be easy to add later when I have more time for a project). I just didn’t have parts handy for even the tin foil one (short on screws in my screw kits, and smaller wood). Is that what it is for? If so, would aluminum work (copper is usually expensive and this is a budget experiment as my wife works at a house builder, and is all but layed off, Us recession and reinstate market and all).