I have a flying buddy who is not only a HAM operator, but a licensed radio technician with a lifetime FCC license to repair and type-certify radio equipment all the way up through television broadcast station equipment. He says I can put a Spectra module in an Aitronics box and he can type-certify the pair (even on the 72Mhz band) so that I can legally use it (as far as the FCC is concerned). However, it only applies to *that* (particular) Spectra module in *that* (particular) Airtronics box, and isn't a standard type-certification (you know like the $4000+) to get all Spectra modules legal for all Airtronics boxes. That's good enough for me, since I just want to fly, without breaking the law... But then Bob Dylan sang "I can see the day coming when even your home garden's gonna be against the law." (although knowing Bobby, he could be growing anything). But I digress. So I'm not sure how a per-unit type-certification affects insurance, but it seems like it should be okay if it is FCC legal. How that affects contests is not a major concern of mine. Never been to one. Visalia this year will be my first, and only to see some experts, and put some faces to some names. -Paul RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]