At 21:46 21 June 2016, son_of_flubber wrote:
I searched a bit and found nothing similar to this problem.

My Powerflarm IGC log function has worked fine in the past, but on my
last
=
two flights, I obtained an IGC log file with size 0 bytes and file
creation=
date of -/-/1979


What was the filename?

This might happen if you are downloading onto a slightly corrupted flash.
Try reformatting first.

Just because you can read/write to/from it does not mean it is 100%.

My LXNav S7 Vario is getting NEMA sentences from the Powerflarm as the S7
i=
s using the PowerFlarm as GPS source and displaying 'arrival altitude'
with=
the 'Get Home' function. I've not checked for the PowerFlarm icon on
the
=
S7 for the last two flights.

My guess is that I'm turning off power to the PowerFlarm too soon after
lan=
ding. The manual says 'allow two minutes' after coming to a stop 'to
avoid=
losing data' (I'm definitely losing data).

So I land, get out of the glider, wait for golf cart to arrive (probably
mo=
re than 2 minutes stationary), tow glider a short distance, turn off
Powerf=
larm immediately after the golf cart tow stops. Do I need to wait an
addit=
ional 2 minutes after the golf cart tow stops before I turn PF off?

Any ideas for debugging this problem are appreciated.


Depends on the speed of the Golf Cart. Provided that it doesnot exceed the
Speed Gate in the FR (unlikely), it should not matter.

And in any case, a file size of zero is suspicious. Reformat the Flash.