ORIGINAL: simhatus
When i wrote my previous post i was under the impression that the dx7 could be buddied to other tx types. but having downloaded the manual it suggests that it is only other buddyable to other spektrum ones.
In several threads in the radio support forums, Danny the JR/Spektrum rep has stated that the DX-7 is trainer compatable with other DX-7's and most JR's.
http://www.rcuniverse.com/forum/m_5066406/tm.htm