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My first attempt at this mail bounced - here goes again...

>more equipement and solve this problem eventually. Then, depending on my plan,
>if the first dive is going to be in the 120-150 foot range, I would make it on
>air, then switch to nitrox for later dives for more time at shallower depths.
>Just looking for comments...

Well, there are tables and computers for diving on air and there are
different tables and computers for diving on nitrox but is there a way to 
hop from one to the other???  

Apologies if some of the following seems like I'm rambling - I'm actually
just thinking out loud with my fingers.

It would certainly be nice to tell a computer - let's start diving but feed 
it profiles (part of which is a profile of the different gases) from dives 
previously done (without that particular computer).  This would be
useful in the event that one computer dies and you weren't carrying
your second one.

This bring up another goody that I'd like to see designed and built.  I
would like a computer with a built in gas analyzer (it probably only has
to detect PP02) that can go from tank to tank which would cover the
above situation.  Of course, during a dive in which one is breathing from
different tanks at various times, this becomes a difficult thing
to do.  I suppose the first step in this would be a computer that does
not analyze the gas but allows you to "switch models" during a dive.  That
way, it could easily keep track of you while you're deep on tri-mix,
decompressing on nitrox and then further decompressing on pure o2.

Now, if you could have little sensing devices implanted in each of
your mouthpieces that would send information to the computer (wireless!)
then this whole thing would be a snap.

-Carl-

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