forum.heinrichsweikamp.com

Clownfish, you are right. I shall be more precise!

jb2cool Wrote:
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> wrobell Wrote:
> --------------------------------------------------
> -----
> > - OSTC calculates your deco like you were 1m
> > deeper
>
> This is the first time I heard this.

CF-16

There are many factors affecting decompression calculation even with the same decompression model, for the start

- OSTC calculates your deco like you were 1m deeper (XDeep - I do not know)
- respiratory quotient used to calculate alveolar partial pressure (OSTC - ppWater = 0.0627; XDeep - no ...

And hopefully last attempt at this subject.

I have fixed the NDL recalculation function, updated the script and recalculated
NDL for two dive profiles

- 20m for 33min -> ascent to 5m -> 5m for few minutes
- 40m for 5min -> ascent to 15m -> 15m for few minutes

I have ensured that both dives are ...

I changed the code of libdeco-ostc a bit to gather more data for the following
scenario

- dive at 20m for 33min
- ascent to 5m at 3m/min (20m -> 5m within 5min)

I have taken the absolute pressure of depth, dive time in seconds, NDL and N2
pressure in each tissue compartment produced by OSTC and ...

And another example, which you can reproduce with libdeco-ostc ,
which uses OSTC firmware for decompression calculations:

[pre]
$ ./bin/decolint 20 33
Dive profile segments:
20m for 33min

GF Low: 30%, GF High: 85%
Surface pressure: 1013 millibar

Gas list:
o2=21%, he=0% at 0m

NDL (ZH-L16C ...

I am attaching two files.

First file is the full bin dump of the OSTC memory. The dive I am talking
in one of the previous posts was the first dive on 2014-07-26.

Second file, debug output from Kenozooid for this dive, which shows (deco
time to be interpreted as in OSTC docs - it is NDL time when ...

do not worry, for sure i will be sitting on this bug shorter time than you :p

what is the limit to ndl limit then?

again, if ostc displayed the ndl properly, then the problem you rise would not exist.

swissdiving Wrote:
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> Yes mine does that too. It always has. I don't see
> the problem. You're not supposed to bounce around
> 0 NDL. Ascend and you will get the NDL time
> counting up.

but... I was ascending :) i tried to follow your "rule ...

i had similar experience last saturday, but on no-deco dive:

- hit 39m
- wait till 2min ndl
- start ascending slowly (< 10m/min)
- ndl drops to 0min (expected)
- continue ascent
-- my buddy's dive computer increases ndl (different computer, different deco model)
-- ostc keeps ndl at 0min
- at depth ...

Stephane Wrote:
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> Hello,
>
> A friend just received his Russian OSTC (Seawooch)
> and the firmware version on the screen is 2.70+.
> Is it normal? Or is it a modified version from the
> manufacturer?

It seems that it is modified version by ...

hey Cyril,

why do you need less than 70% gf high?

heinrichsweikamp Wrote:
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> English manual is online now, too.

so what options are going to be cut-off comparing to previous version?

regards,

w

the following article provides some insight about deeper stops as well http://hhssoftware.com/v-planner/decomyths.html

Are OSTC 3 and DR X still going to be Open Source dive computers?

Paul S Wrote:
------------------------------------------------------- the previous >
> My suspicion is that this is related to how
> Gradient Factors are computed, but I haven't been
> able to prove it.

I suspect some bug as well. This looks like deco spike problem I have experienced few times in ...

What is the benefit of new buttons?

Abyss79 Wrote:
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> I read the articles,
> so the best is to decrase the high GF.
> What you use as GF low and hight?
> Now I'm using 30% and 90%
>
> I make same test and from a dive at 50m for 15
> minutes deco start at 15m
> If I put HGF to ...

Abyss79 Wrote:
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> I'm using Aladin computer and buhlmann table since
> I start diving, and I'm happy with it.
>
> Deep stop is not something against buhlmann, but
> just a way to control the size of boulbe during
> ascending.
>
> I will do ...

dmainou Wrote:
-------------------------------------------------------
> wrobell Wrote:
> --------------------------------------------------
> -----
> > maran Wrote:
> >
> --------------------------------------------------
>
> > -----
> > > hello,
> > > It would be good to have a possibility to ...

maran Wrote:
-------------------------------------------------------
> hello,
> It would be good to have a possibility to switch
> gradient factor underwater. For example in case of
> losing the consciousness of my buddy I would like
> to go up on different settings than normally.

Why not simply ...

thanks for the info

w

hi Jean,

of course it was my rough guess. sorry.

what is the role of char_I_deco_distance variable?

regards,

w

hey,

looking at the code one can see such option (not sure if it is exposed via CF though).

a queston: what about using GF indicator instead? or is that not good alternative?