Ta for advice. Now have a Bixler 2 sitting on my bench. It requires batteries ( on alert notification with HK ) and reciever compatible with the stabiliser offered by Predator i.e. Radiomaster R168 D16. Hobbyking have two versions of this, D16 (LBT) and also D16 (FCC ) As I am an ignoramis on these matters could I ask Predator to advise which is the required for compatibility with his Stabiliser which I would like to purchase from him.