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| Freediving Equipment Freediving equipment discussion. |
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#17
April 10th, 2007
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Hi DeepRn,
I've just picked up a Manta and wanted to compare notes with you if you're willing... I've only had it in the water once and after uploading a days Freediving info, found that the first seconds of the dive seem to be a wash. On a 10 to 12m dive the first depth graphed/logged is around 6-7m. Was wondering if you were experiencing anything similar? Your first photo seems to show a nice gradual increase in depth; is that the norm for your units? Thanks for your oringinal review and observations by the way. They helped in the decision to buy. Sean
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Sean Wet Coast, Canada 
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#18
April 10th, 2007
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Sean,
You're absolutely right. I have to say that I never noticed it before (i supposed because of a nice smooth graph), but when I look at the sampled data, the first depth registered on each dive is somewhere around 30 ft. For my most recent day of diving, I was heading down fairly quickly, but I'd say it would take me about 8 seconds or so to reach depth. So there should be info from those first few seconds. Strange how everything from just shallower than depth is perfect. But it does look as if the watch is not recording for about the first five seconds or so. I will contact Rick, from Oceanic, and ask him this question to pose to the engineers of the watch. Feel free to do the same. His email addy is: rcockroft@oceanicusa.com The most recent scuba dive i did read very well. The first recorded depth is 9ft, but i have it set at a 15second sampling rate. Anyway, thanks for pointing that out. I'll write back with anything I hear from him. I have now spoken with Rick from Oceanic. Alas, we'll have to wait for a while as he was literally on his way out the door to catch a plane north, for abalone diving (lucky buggar). He did suggest that maybe the wet activation was on and taking a few seconds to activate, then recording a second later. I responded by telling him that we're not using wet activation. I'm a little peeved that the graphing software simply fills in that initial second, making it appear that you've literally bombed down to 40 feet in one second. But overall, I'm not too concerned as I know the computer it will be recording no later than 5-6 seconds after submerging. And it's still reading/displaying my depth in those initial few seconds. Either way, he intends to dive the manta for this trip, and will get back to us on this one, and anything else he/we can come up with. He expresses his gratitude for the good questions/feedback on this new watch.
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.oOo.oOo. gabriel .oOo.oOo. Last edited by DeepRN; April 10th, 2007 at 18:12.
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#19
April 11th, 2007
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Quote:
Anyone else have any similar experiences with different computers? How about the D3's personality quirks?
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Sean Wet Coast, Canada
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#20
April 11th, 2007
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I'm glad to hear that the Geo finally offers an alternative to the D3 (which was and remains a poor product).
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Eric Fattah Canada http://www.liquivision.ca "I encourage you to be free in the way you measure your success. I don’t claim to know what it will be like to be in your position, but I know that when you leave here, grades will be handed out differently. Your ability to gauge your success will largely depend on how you perceive it. You can shape it, set it up, feel it, and define it. Allow competition to turn inward. Do not depend on awards, money, or other validations." -Jonny Moseley
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#21
May 19th, 2007
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Quote:
 I just got one a couple of months ago.
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www.michiganfreediving.com
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#23
June 12th, 2007
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hi rb - sorry to say i don't have any info yet. i've been in vancouver lately and now my 4yrold son is being threatened by potential surgery. i'll do my best to contact Rick soon. Do deco dives yet. I don't have any complaints yet either
 Gabe
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.oOo.oOo. gabriel .oOo.oOo.
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#24
June 12th, 2007
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Quote:
serge
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#25
June 13th, 2007
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#26
June 15th, 2007
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DeepRN,
Thanks for the great review and best wishes for a speedy recovery for your son. I used a D3 yesterday that a friend had and loved it but with the nitrox/scuba diving I do as well I think I would pay the extra for the Manta/Geo to have those features. I have a console computer that my wife will likely get after she finishes her scuba lessons : )
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#27
June 29th, 2007
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Quote:
Sean, this probably explains why beginning of a dive is not logged.
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#28
July 10th, 2007
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I have the Oceanic VT3 which also has a freedive mode. I'm going to assume the geo has an identical set of functions. The alarms are really useful and the navigation is pretty straight forward. I use it as both my dive and free dive computer. Another good computer to checkout is the Suunto mosquito. also-- when I made my decision to buy, I looked through the instruction manuals to get an idea what feature are really available and how easy it is to navigate.
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#29
August 4th, 2007
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Hey All,
I just ordered an Oceanic Geo from ebay for $300.99 (new). I think the seller has 4 left. Just a heads up. Oceanic Geo Scuba Dive Computer Watch-Yellow - (item 330100807801 end time Aug-16-07 15:58:17 PDT)
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Bo Gaithersburg, MD
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