Synching receivers

[apfubar]

I know it can be done with the spektrum line, and graupner Hott system..

The graupner solution allows the user to map each Tx channel to each rx channel on a specific rx...

As stated above the spektrum one allows multiple rxs, but no channel mapping... Also note that there is a little bit more flexibility around matching receivers, I think they have to be the same family, but you would have to google it as I don't know the details.

Cheers,
Ap