If you are NOT an Honeywell FMS 5.2 SW airplane:
Chicago Jets offers a CPDLC !ONLY! $450K solution. STANDALONE meaning it displays on a Skylight CDI….(YIKES)
If you are a Honeywell 5.x airplane, Honeywell will drop support for pre 6.1 SW. they will begin to charge extra for Database updates.
This has the effect of nudging people toward complete updates 1 year prior to deadline.
Texas Gyro has successfully performed a $80K option for ADSB out. In a Falcon 900ex. Transponders upgraded to TDR94D -512, Stand alone WAAS receiver, One annunciator on each Eyebrow, ICG NO TCAS upgrade, NO FMS upgrade. There was considerable trouble obtaining certification, but it worked out. This aircraft is now a CONTIGUAL USA ONLY airplane.
Non Easy Falcons are except from ATEN ONLY for European operations.