But come 1/4/16 they will be not considered an ADSB "client" and will not trigger a response from a ADSB tower, so effectively it becomes an IN only unit.
The OP must have received that email from the FlyQ folks promising 5 years of usefulness as an OUT solution.
That may not be the case. According to Don Houtz at Skyguard TWX, the FAA would allow his portable units to send a SDA and SIL numbers greater than zero if he included a better GPS position source. So the units would then still be usable at least out to 2020. He has a post on this thread in their forum regarding this issue:
So the same allowance on setting of SDA and SIL to non-zero may be true of the NavWorx portable unit. The FAA may be exhibiting some flexibility on some of the ADS-B technical aspects where they haven't otherwise shown any.
