In my 35% yak thats was PCM now 2.4 ghz, I had 2 ant. running down the center of each side. On my high wings and small airplanes I run on stabilizer, If I don't like the look of it on top or sides like on my new airplanes I run on bottom, I have covered them but I quit because I switch recievers quite often, a bad habit, will most lickly get me in trouble some day.