Before I go build something I am investigating my options for an off the shelf milair (225-400) omni antenna. Something like a simple fat ground plane antenna or fat dipole would work. Aside from some surplus antennas that pop up now and then I can’t find anything. I could have sworn I saw a Sirio fat ground plane antenna that would work (like photo below for 380-480), but I can’t find it anymore so maybe I am misremembering. Looking to stay under $150. I am already aware of the OmniX and discones. Anything come to mind that I should look into? Thanks.