On Sunday, January 6, 2013 7:00:38 AM UTC-8, son_of_flubber wrote:
On Sunday, January 6, 2013 5:13:39 AM UTC-5, Kimmo Hytoenen wrote: I have discussed with some variometer manufacturers about their data communication protocols, and some of them either do not disclose information, or do not give correct information. That's not surprising. The vario-makers are in competition with each other, and perhaps more to the point, the early adopters of the new varios are in competition with each other.

I believe Flarm, LX NAV, LX Navigation, and ButterFly are relatively open about their data output. That is their business and openess promotes more sales.
You also don't have to wait until ????

Richard
www.craggyaero.com