At 19:30 04 April 2011, Brad wrote:
On Apr 4, 10:37=A0am, Andy wrote:
On Apr 4, 10:21=A0am, 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. =A0One
result is that they like to say they are going straight even if the
host vehicle is turning. =A0Ok 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

Andy,

I've been told, and I hope it's correct, that sending a GPS signal to
the 310 will give better results. I will be using a Powerflarm to send
the 310 data and by-pass the internal GPS. It is a simple setting in
the LK8000 software for a com port and baud rate setting.

Brad


There is quite a lot about the iPAQ 31* series problem on the LK8000
forum. The internal gps is almost useless for gliding. I use a Holux bt
gps with mine as Device A, and if it ever loses that, it never has, it
will default to Device B, the internal.
Been trying for some time to connect the SN10B to the iPAQ 314, as soon as
one problem is solved, another raises it's head, but I think I know what
to do now thanks to Dave N and Paul R.
Dave