Ceiling calculations on 2nd dive, comparing Subsurface, OSTC and Garmin.

Robert Helling helling at atdotde.de
Fri Apr 15 12:20:37 PDT 2022


Michael,

> On 15. Apr 2022, at 19:19, Michael Andreen via subsurface <subsurface at subsurface-divelog.org> wrote:
> 
> I started a thread on the OSTC forum because I noticed that the ceiling
> calculations on my new OSTC Sport for the 2nd dive of the day was quite
> different from the calculations that I get from Subsurface and Garmin Descent
> MK2i, all using the same gradient factors.
> 
> https://forum.heinrichsweikamp.com/viewtopic.php?t=22304 <https://forum.heinrichsweikamp.com/viewtopic.php?t=22304>
> 
> I guess there are a few OSTC divers here, has anyone noticed similar
> differences to the Subsurface calculations? How does Shearwater match up? The
> dives I've done with my Garmin has always matched within a few minutes, for
> both the first dive and repetitive dives.

I responded on the HW forum. Together with Ralph we should be able to sort this out.

Best
Robert
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