Originally posted by jucava
David let ask you something, why many people use synthesizer insted of using all the receivers on the same channel, just to be able to fly another plane if one particular channel is being used?
Yes indeed, that's the main reason.
If you have two different receiver crystal channels you have twice the chance of there being a channel free for you to use on a busy day. The Hitec transmitter battery compartment has little slots to store spare receiver crystals, so, when I turn up at the flying field, the first thing I do is to see which channels are being used, and pick a crystal that is free. I almost never have to wait, even on our flying field which is very crowded occasionally.
-David C.