Like the guy before me said, on a balsa or foam plane, just keep it inside. 2.4 Ghz is a beautiful thing. Years ago we had to run the antennas outside , or loose your plane. Unless you have a lot of cf in your plane, just run them where it's convenient for you. I usualy run a satellite receiver down to the tail as I'm building the plane. BTW, nice looking decathlon. Who makes it? I just picked up a seagull super decathlon 120, and a DLE 30 to power it. Good luck, Steve