"Flarm, no GPS"

At 03:18 04 July 2015, John Carlyle wrote:
Jon,

I flew 3 hours today, and my Butterfly vario was happy with all of the
mess=
ages from my Flarm (v6.03). My messages typically look like LFLA185213GPS
1=
0 45.=20

I'm in PA, so maybe there's something to Matt's GPS jamming theory.=20

-John, Q3

On Friday, July 3, 2015 at 11:26:00 AM UTC-4, jfitch wrote:
In the Flarm IGC file there appear to be no skipped Lat Long records
arou=
nd these messages. Time correlating to the Air Av IGC log, at each of the
i=
nstances there are no missing fixes.=20
=20
My guess is that it is a Air (Butterfly) vario thing. The Flarm NMEA
stre=
am must have changed to introduce some new stuff at the 6.0 change, and
the=
vario is choosing to warn about things that might be better unsaid. But
I
=
was trying to get more info on the PowerFlarm first.


If you look at the GPS Altitude trace in SeeYou, this Should go to zero
when there are no valid GPS Positions.