https://instinct.pro/products/skydrop-gps-vario

Wesley Hill <<wesleyianhill>> writes:

SkyDrop released new firmware a few days ago.

"Build 4016 - 24. 07. 2018

FIX:

* IGC altitude bug #346

* IGC distinguish between 2D/3D fix recording"

I have tested my SkyDrop with this firmware and it correctly identified 2D fixes
in the IGC file.

There are still a few issues unresolved:

Flytec 6030 - I believe 2D fixes are not correctly recorded in Flytec 6030's
with the FURUNO chip. I have insufficient data for an analysis of other chips
used in the Flytec 6030 (proof that it records them properly would be a few
consecutive 2D fixes in an IGC file with 1 second interval).

We have a number of instruments that forward NMEA sentences to various Apps. Of
the three instruments I have checked, none of them forward the $GPGSA sentence.
That means that any App that is used with those instruments is incapable of
producing a valid IGC file.

The three instruments I have checked (looking at their documentation, or
indicated in emails from the manufacturer) are SkyDrop, Flytec 6030 and LXNAV
Nano.

I have also checked the source code from XCSoar and it appears to store 2D fixes
as 3D fixes.

The list of CIVL Cat 1 Approved Instruments will need to be updated to show that
firmware prior to the recent updates for Oudie and SkyDrop cannot be used.

It is unclear just what applications (Apps) Wesley is referring
to. Perhaps GPSDump. I think of Apps as on phones. Wesley apparently doesn't use
that nomenclature. I've asked for clarification.