My 2.4Gig hasn't an external aerial at all, I must admit to being a bit concerned about that, but it seems to work wellGenerally with multiple bods driving them. I rather hate the Stick and Pistol grip car/plane/boat rc’s, if you have almost had an eye poked out by the earlier ones with long stick type ariels you would know why. Most bods eventually used to put a ping pong ball on the end for safety back in the day of 27/35/40 mhz. 2.4 gig do have shorter ariels so less of a danger but still a pain to use with a shunting pole and simplifier to hold.