Video tx where to mount

[Rustydiver]

Where would be the best place to mount a 5.8 ghz fpv tx on a dji f550 with aeroxcraft legs so the battery is underneath it.
On top aerial going up. Top right at the back.
Underneath it aerial pointing down.
On the legs to the side. Can it be neat the fight rx or away
So many questions.

[forest]

underneath would be best straight down with nothing top block signal  but its not always practical ive got mine at the back of my quad in a vertical position  seems to work well  for me