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That calculator is neat, what's the URL for it?

What you're missing is that the chemoreceptors that detect high CO2 levels trigger a long long time before you detect low O2 tension (in normal breathing), and are independent of the O2 tension. Regardless of what your oxygen levels are, you will trigger the uncomfortable feelings of...

Personal experience: I did fundies (in single tank with no light) about 6 mths after AOW with about the same number of dives you quote and no bp/w or long hose experience. I reckon I was pretty underprepared and went in not expecting a pass, just to be a bit more competent than when I went in...

What do you think has changed in that time?

Yep - cheers for the heads up :)

This is awesome. So diver #2 :)

Awesome.. Thanks for the reply Alex. I'm feeling a little more confident on buying now. Will be great to finally get away from the jacket, it's felt terrible ever since I did Fundies.

While we're on the topic (sorry if this is hijacking your thread OP, but it might be useful for you too if I've done it right). but I've been trying to do some calcs to buy a bp/w, and if anyone has the inclination to look over them and see if they make sense (all metric numbers, celsius etc)...

Awesome report guys. I just finished Fundies a couple of weeks ago - basically because I wasn't comfortable with my core buoyancy and propulsion skills, and what you said about the additional planning and thinking things through and the confidence that comes with that as the main thing really...

TSandM, is the middle ear tissue likely to heal up given time, or is that a permanent damage sort of thing? I don't have this problem personally, but I've late equalised a couple of times (usually on training dives when thinking about other things) and am curious about how much damage it could...

Looks like they may have found him. Shark bites in the body, but that could easily have been post mortem. Human remains with possible shark bites could be missing diver, WA police say - ABC News (Australian Broadcasting Corporation) Terrible news for family and friends.

As promised, here's my writeup of what I did to make it work. Hope this helps - any suggestions, errors you find, please let us know. As always, do this at your own risk. Stuff and things: Oceanic Geo2.0 DIY data cable

Before you go off buying cables - I'm using a 3.3V TTL level cable (https://www.sparkfun.com/products/9717 specifically). FT232 series converter. I don't have a legit cable to put into a logic analyser, so I can't confirm that 3.3V is correct, other than it actually works :), but from other...

Yep.. It's a touch late tonight and as an Australian, our national religious observance - Test Cricket - is happening, but I'll knock up something over the next day or two.

Just to confirm what zhenshi has said. Put together a 3.3V FTDI adapter cable (like you'd get from sparkfun) together with a quick bit of veroboard and pin headers. No active (or even passive) components. Works fine - downloaded three dives off the GEO2. Total cost $3 (+ cost of FTDI...