No, he simply mixed them when he handed me everything. I was in his shed with him and there must have been at least 6 transmiters that looked almost alike. The original transmitter had written in faded black marker on the back "white xxxx" indicating something. The transmitter he gave me last night says "purple bi" indicating the plane I bought. The reciever is exactly the same in apperence so instead of re-routing the antenna lead I just changed the crystal in the reciever. It all works now. Even from down my street with the plane in the house. I don't believe there is a problem with this. Do you still think so?