[sm=confused.gif]Just let me Get this right so i'm not confused. You have two TX's on channel 40 and used one to fly the plane and had a friend turn on the other one, but you didnt loose control of the plane with the one you were flying with. So you like the Berg RX receiver since it didnt get locked out buy the oposing Transmitter TX.
I would say you were just lucky.

Did your friend try and moving the sticks on the opposing TX? Not a risk i would like to take, but hey guess its a good way to test a Receiver out if you dont mind taking the risk you might loose a plane.
I stress when i go fly any of my planes. Always do a radio distance check before flying. hoping that i never get locked out. But i usually fly alone and out in the boonies, but you never know who may be using the same frequency, Some were out there in range. I have had my Tx loose signal and thats bad enough. luckly the plane was headed back my way and regained its signal and I regained control over it. Dont let them Tx batteries get low. I was flying a parzone Spitfire and there radios arent the greatest IMO. But they do the job i guess. The batteries were low in the TX and the plane got about 200 yards out, was way to far away from me anyway. Should have known better.
But you know how it is sometimes we just have to have one more flight and think well i have enough Juice For one more since that happened. After each flight I check my batteries. Thing is with them Cheap TX's that come with the ready to fly stuff, usually dont Beep or anything to warn you when your batteries are low. Ok i'm rambling typed way to much allready.