On 8/16/2010 4:22 PM, noel.wade wrote:
On Aug 16, 1:49 pm, wrote:

As I understand it, Power Flarm will incorporate ADS-B ( protocall not
completely clear to me) as well as transponder PCAS annunciation.

Here's a short Not-Totally-Technically-Accurate-But-Close-Enough
Explanation:

There are two "flavors" of ADS-B: 1090ES and UAT. The 1090ES system
is more likely to be used by big/fast airplanes. UAT is more likely
to be equipped on small GA aircraft. PowerFLARM supports 1090ES. It
does not support UAT or ground-based relays of traffic information
(according to the specs released so far). So you'll see some ADS-B
aircraft with the PowerFLARM; but you won't necessarily detect _every_
ADS-B aircraft. I believe that "some" ADS-B detection is better than
"none", especially when you add in the ability to see Mode C/S
transponders (when replying to radar pings) and other FLARM-equipped
gliders.

--Noel
(who will have a PowerFLARM this fall)

PowerFlarm is ADS-B In only. It only transmits FLARM, which jets can't
see. By itself it does absolutely nothing to protect us against
mid-airs against jets.

--
Mike Schumann