It is a good idea to separate the receiver antenna as much as possible from the servo leads. You can either use paper tubes to guide the servo extensions (a little heavy for Pattern applications) or else use a couple of those little Jtec wire guides. It's a little like building a ship in a bottle to set that up, but no harder than setting up an elevator pushrod the more traditional way. For the receiver antenna,I use a small ID plastic tube tacked to the inside of the fuselage, away from the guide system for the servo leads. The other thing to strive for is to avoid an exact parallel orientation of the antenna to the servo extensions, i.e., angle away from each other as much as you can. It gives a only slight benefit, but why not do it, it's no harder than making them exactly parallel.