I have been wanting to get a buddy cord to train my wife with on one of my planes, i would also like to help a friend that has not flown for a while to polish up on his skills, but he has all futaba equipment, plus my dad got a hitec radio with an rtf foam trainer from a guy he knows for a good price, but he is scared to fly it! so i have 2 different radio types i need to link to.. i thought i saw in one of the model magazines i was looking at in hastings the other night where horizon came out with a cord and interface unit for 11.95 that would connect to all spektrum, jr, and futaba radios.. thats what i need, but i looked on horizon's site and they don't have it listed, if anyone knows where i can get one, that would be great, also i would like to know what the cheapest radio i can buy to link my wife to for training purposes.. i don't know for sure, but i dont think the radio even has to have an antenna or battery to work because the signal will transmit from the trainer's radio instead of the trainee's correct?