Yup... that has happened to me with the Spektrum system... lost the student connection.. so I released the switch until student could hook up again. Student flying again, no drama, nothing.
Waste of money... student has to find an instructor with the same system or buy two boxes and equip them so student can fly. Something more expensive to buy that you will use for 3 months. Something else to go wrong.
Or you can buy a mono audio wire at radio shack for $6 and use it with a lot of different instructors... (spektrum/Jr/Futaba/hitek) No I will not be jumping on this train.
Sorry Buckner... I don't get it, and don't see any psychological advantage. If the student knows you are over watching, they know, does not change a thing. I start with buddy box and transition to sharing the box in a hand off arrangement, then turn them loose.
ORIGINAL: opjose
We had a situation two weeks ago where a buddy cord was pulled out of one of the transmitters while a student & pilot was flying.
This shorted the TX and caused it to stop transmitting! The plane went into failsafe with a slight nose down attitude at the time.
Fortunately instructor had the presence of mind to turn off his transmitter and turn it on again a few feet before the brand new giant club trainer went into the trees.
Wireless buddy boxes are the way to go.