morning everyone i have a couple questions maybe i can get advice on i have an old aluminum ground plane that i recently just saved from the junk pile . now that it is all cleaned up and ready to use i have some questions on it performace. well ideally it would be great to mount this antenna on the roof which would have put it at a little over 1 wave lenght above ground(27 mhz) . but this is not an option due to renting . but i was told that i could mount it next to the gerage . the antenna will mounted on a 1 1/4 tv mast i have the base about 16 feet above ground which i beleive would put it a little under 1/2 a wavelenght. my 1st question is there is 16 feet of antenna mast which is on the ground do i need instulated this tv mact from the the ground . 2nd ? is how much differance will the angle of radtion be at 1/2 a wave lenght abovr ground compared to to 1 full wavelenght? also will the toa be differant or the same next ? is i have read a couple pages talking about use elevated ground radials compared to useing ground radial on the ground since the base of the antenna is 16 feet above ground but the mast the antenna is mounted to is sitting on the ground im not sure what type of set up to use or could i use both elevated ground radials (4 of them) and about 20 16 foot radials on the ground well thanks everyone and 73s