> N.B. that (as best I recall) a "transmitter" is anything that can
> transmit rf, intentional or not. The short answer is you can't
> sell or transfer anything, but it seems VERY unclear about
> e.g. a 'hobby' data link with published design but (many) 'free'
> individual builders. I'd like to here anything on that (privately).


Each builder would be responsible for any interference created, and for
compliance with part 15.