My FM radio just started acting up and I'm kinda puzzled.. The servos twitch a lot but the weird part is if I remove the antenna completely it's fine..? I tried swapping it with another antenna and its the same deal. Any ideas? It worked great last time I used it, just started doing this out of nowhere..

Yeh man, i have seen my mate's nitro car do it.. We found it stopped with arial disconnected, but that is not the fix.... Let me know if you find anything out pls.

Arial length does make a big difference though. As arial length is different for AM, an FM.

Does anyone know the rite length for AM & FM arials ?

Cheers

Don't know the right length, but I've used electronic contact cleaner on servos that were twitching & it always seemed to do the trick. Might want to check & see if someone is on your channel too. Sounds like you're picking up interference from something. Heck, I've even picked up interference from cell phones!!