On Tue, 04 Sep 2007 22:16:03 +0000, Larry Dighera wrote:

Surly ITT will address that issue.

How? Is that even in their mandate?

Have you any idea how the features of each compare?

Not any more, in detail. I did read a couple of reports on this, and I
also had a chat with a engineer involved in at least one of the systems.
But this was all a while ago, and I never did know more than a little

The mode S based system, if memory and gossip serves, exists only as a
cost-savings device for the airlines (though I admit I don't quite see
how...unless they've already invested in mode S; have they?). The UAT
appeared to be the more generally useful, again if memory serves.

VDL apparently has some advantages over longer range. (ie. oceanic).

I'd welcome someone with more knowledge to provide details. But the fact
remains that we've three mutually incompatible mechanisms in a system a
major advantage of which is peer-peer communication. That seems
counterproductive.

Andrew