An elevated vertical using a telescoping vertical element is cheap and efficient. It can be adjusted in length to tune for HF ham bands. You need two tuned radials with the same length as the vertical element. So, for 20m, the vertical and radials need to each be about 16 feet long.
I use this one for remote operation and can install it in minutes. The parts are available on amazon. I just slide the telescoping element a little shorter for higher frequencies and fold back the radials to match.
I use this one for remote operation and can install it in minutes. The parts are available on amazon. I just slide the telescoping element a little shorter for higher frequencies and fold back the radials to match.