On Apr 4, 10:21*am, Tuno wrote:
Good question wrt the GPS quality. How is a receiver optimized for
aviation?

But I do think the air data makes a huge difference in wind and glide
calculations. Without it, SYM and the SN10 provided varying answers on
the steering to target; with the airdata, they always matched.

I'd be convinced if you disabled the SN10 GPS feed and saw the same
results. Or are you saying the SN-10 is feeding only airdata to the
Oudie and not GPS position data.

PNA GPS receivers are typically optimized for car navigation. One
result is that they like to say they are going straight even if the
host vehicle is turning. Ok it's not the GPS receiver itself but the
associated data processing and in some devices, such as the HP310, no
one has yet found a way to hack it so it works properly.

Andy