CherokeeFlyer:

No matter what you do, the receiver antenna needs.. NEEDS to be fully extended. I may suggest you route the antenna outside the fuselage. See the picture as to how I handle that (and many, if not most other RC pilots do).

Another method I've used is to pass the antenna down to the bottom of the fuselage then run it along the bottom of the fuselage, securing it temporarilly with tape, then applying a covering to either offset the bottom of the fuselage color or to match the bottom of the fuselage color right over the antenna and iron it in place.

No matter what you do, you need to make sure it's full extended. If it gets 'tangled' with the servo's, use a short piece of plastic tubing, such as throttle guide tubing, to guide the antenna either away from the servo's or around the servo's. Then exit the fuselage in any method you choose (as I showed in the diagram or other method of your choice). Do NOT under any circumstances, put the antenna inside of a metal tube or container or allow it to ball up inside the fuselage. Make sure you secure the bitter end (the opposite end from the RX) with some sort of securing device.. a T-pin tied to a rubber band, whatever you choose but keep it from falling back into the fuselage and balling up on you.

Regarding the servo's jittering, that may happen with fully charged batteries, meaning peaked batteries, and may go away once you draw out a small amount of charge, say five minutes of operation, or when the transmitter is very close to the receiver.

DS.