HDTenEightyP/NetNews huggingface dataset:
From: kevin@tamri.com (Kevin Dalley)
Subject: Re: How about the Oceanic Datamax?
Reply-To: kevin@tamri.com
Organization: TOSHIBA America MRI, South San Francisco, CA
	<1992Sep9.141049.7546@news.miami.edu> <24797@oasys.dt.navy.mil>
Date: Fri, 11 Sep 92 00:04:21 GMT

>>>>> On 9 Sep 92 21:01:15 GMT, cervi@oasys.dt.navy.mil (Mark Cervi) said:

> They replaced the batteries in my Oceanic Sport model for free about 
> 18 months after I bought it.  All I had to do was ship it out to them
> myself. It came back in about three weeks.

After about 18 months, my Datamax Sport started producing strange
results.  I took it on 3 dives within one day.  The first dive was to
about 30 feet, but recorded a maximum depth of 195 feet.  The second
and third dive had a real maximum depth of between forty and sixty
feet, but the Datamax recorded a maximum depth of 0 feet.  The low
battery indicator never lit up.

I returned it to Datamax.  Since I had not replaced the battery after
one year, they charged me $50 for replacing the battery, which
includes overhauling some unit and sending me that unit.  Testing the
unit is also included.  Though Oceanic said that it was still within
the warranty period, they insisted on charging me.  The customer
service person claimed that units often malfunction when the battery
is low, even though the low battery indicator does not light.  This
contradicts their booklet which claims a week's worth of diving after
the low battery indicator comes on.

This disturbs me.  Oceanic seems to be saying that the Datamax Sport
is very likely to fail at any time, without warning.  In fact it is
expected to fail without warning.  That could hurt a dive trip.

Other than that, I've been happy with the Datamax Sport.


--
Kevin Dalley
Toshiba America MRI, Inc.
kevin@tamri.com
From: walz@elde1.epfl.ch
Newsgroups: rec.scuba
Subject: Re: Device for talking underwater
Date: 11 Sep 92 09:34:19 GMT
Organization: Ecole Polytechnique Federale de Lausanne

In article <fourie.8@odie.ee.wits.ac.za>, fourie@odie.ee.wits.ac.za (Andre Fourie) writes:
> I am very interested to find out whether anybody know of a device with which 
> you can talk while diving - anybody heard of such a gadget?
> 
> Regards
> Andre Fourie

Yes, I have used such a device. It's a full face mask with a (optionally)
built in microphone connected to a special underwater transmission device.
You also have some kind of earphone to hear what your Buddy says. The system
allows diver <-> diver and diver <-> surface communication, but it is really
expensive (~$3000). It is made by AGA.

Michael Walz
walz@elde1.epfl.ch
Newsgroups: rec.scuba
From: dan@resonex.com (Dan Kell)
Subject: Re: Plastic coating weights
Organization: Resonex Inc., Sunnyvale CA
Date: Fri, 11 Sep 1992 07:32:47 GMT

The stuff I've seen is called Tool-Dip. You should be able to find it in a
good hardware store. Most places like Home Depot, etc. may not have it.


-- 
Dan Kell                  
email to dan@resonex.com
"Imagination is more important than knowledge."   A. Einstein
From: leonglaw@hpsgm2.sgp.hp.com (Lawrence LEONG)
Date: Sat, 5 Sep 1992 01:55:05 GMT
Subject: Re: Information about advanced deep diving course wanted
Organization: HP Singapore
Newsgroups: rec.scuba

In rec.scuba, dave@hpdstma.ptp.hp.com (Dave Waller) writes:

|In article <1992Sep3.120735.28651@scifi.uucp>, njs@scifi.uucp (Nicholas J. Simicich) writes:
||> This sounds, frankly, like she developed a shunt.  A shunt is likely
||> to increase the possibility of DCS.  Personally, I believe that this
||> is the main factor in the likelihood of repeated DCS hits.  I heard a
||> tale of an instructor in the Caymans who began to get bent in the pool.
|
|Just to clarify for those of you who don't know what a shunt is, it is an
|abnormal connection between the venous and arterial blood flow that allows
|blood to bypass the pulmonary circuit, thereby allowing bubbles to pass into
|the arterial circulation without being filtered out by the lung tissue.
|
|Current theory holds that, even under diving profiles that are well within
|allowable maximums, bubbling occurs that can cause DCS symptoms if it
|weren't for the filtering action of the lungs. This bubbling is often
|called "asymptomatic", as it doesn't result in DCS the vast majority of the
|time.
|
|People who develop a shunt, or have a heart abnormality called a "patent
|foramen ovale" (a hole between two chambers of the heart) are at significantly
|increased risk of DCS, and should not dive.
|
|-- 
|Dave Waller
|YMCA Instructor

Dave, I was under the impression that this opening is present in the foetus
('cos the foetus dosen't have to breathe as oxygenated blood comes from the
mother).  The opening closes up in "normal" humans, but only partially closes
in a small percentage of people.  Sorry, I can't remember the percentage.  It
is this small percentage of people who are more at risk from repeated DCS.
I think this is also one reason for the modified Trendelenberg (sp?) position 
too.

Can a person with a closed shunt, re-open it in life (as in "develop a shunt")?
If so, what are the risk factors?  

Curious minds want to know.

lawrence
From: story@sgi.com (David (Duis) Story)
Newsgroups: rec.scuba
Subject: Re: mask strap
Date: 9 Sep 92 00:16:26 GMT
Organization: Silicon Graphics, Inc.

In article <183398@pyramid.pyramid.com> moliver@pyramid.com (Mike Oliver) writes:
>In article <saitowit.15@underdog.ee.wits.ac.za> saitowit@underdog.ee.wits.ac.za (SAITOWITZ L S) writes:
>>
>>Are there any safety reasons for diving with a mask strap?
>
>I don't relish the thought of fishing 1/4" chunks of granite out of
>someone's eye socket with a dive knife.  

Yow!  As official NED Chairman of Ignominous Awards, I hereby nominate
Mike for the NED "Gory Imagery of The Year" Award.  Congrats, Mike!

>>P.S. Are there such things as contact lenses that are calibrated for the 
>>refractive index of water?  

I've heard of them, but they typically use air pockets, not just
refractions.  

Cheers,

David Story                        NAUI AI Z9588, PADI DM 43922, EMT
story@bent.wpd.sgi.com		   Oxygen is a drug in California.
Newsgroups: rec.scuba
From: zwbm07@hou.amoco.com (Walter Moore)
Subject: Most relaxing and enjoyable dive?
Reply-To: zwbm07@hou.amoco.com
Organization: Amoco
Date: Wed, 9 Sep 1992 18:01:43 GMT

What is/was your most enjoyable and relaxing dive? Personally, I think I
most enjoyed a shallow dive site (don't have my dive log with me) near Nassau,
where I just sat on the bottom and watched live go by for a while. My second
most relaxing and enjoyable dive was in Grand Cayman, off of Parrot's Landing,
where we just took our time and went as a snail's pace while enjoying the scenery.

---
TTYL & TANSTAAFL ---------------- Walter Moore 
      Internet: zwbm07@hou.amoco.com

..SCUBA divers do it with depth...blub...blub...blub...

Newsgroups: rec.scuba
From: pyron@skndiv.dseg.ti.com (Dillon Pyron)
Subject: Re: Damage to Kauai???
Reply-To: pyron@skndiv.dseg.ti.com
Organization: TI/DSEG VAX Support
Date: Mon, 14 Sep 1992 15:59:08 GMT


In article <cheese3.11.0@ioc.unibe.ch>, cheese3@ioc.unibe.ch (Daniel Hirschi) writes:
>My wife and I had planned a trip to Kauai starting Oct. 9th., to go hiking, 
>scuba diving and enjoying ourselves. Now, because of that Hurricane, should 
>we cancel, should we go? How bad are the damages? It is very difficult to 
>judge from the info we get from the newspapers in Switzerland. 
We are going to Maui on the 5th.  I spoke with some friends there this weekend. 
They have some damage, Oahu apparently has more, and Kauai appears to be torn
to shit.  On CNN, we watched what we know to be the Sheraton Kauai get
litterally flattened.  This hotel was rebuilt after the 1982 Hurricane Iwa.

You might call the HVB.  I'll post the number tomorrow.  There are no phones to
call into on the island.
--
Dillon Pyron                      | The opinions expressed are those of the
TI/DSEG Lewisville VAX Support    | sender unless otherwise stated.
(214)462-3556 (when I'm here)     |
(214)492-4656 (when I'm home)     |"Do something different, DISAPPEAR"
pyron@skndiv.dseg.ti.com          |  "DISAPPEAR"
                                     _A Day On Earth_
                                     Brave Combo

Newsgroups: rec.scuba
From: mayne@creat.cs.fsu.edu (William Mayne)
Subject: Re: Flower Gardens Tragedy
Reply-To: mayne@cs.fsu.edu
Organization: Florida State University Computer Science Department
Date: Thu, 10 Sep 92 20:48:32 GMT

In article <1992Sep10.193751.20571@PA.dec.com> fgz@brush.pa.dec.com (Federico Genoese-Zerbi) writes:
>
>> |> When you say that being hit by DCS at 60 feet is virtually
>> |> imposible you really show your ignorance. What if the guy made multiply
>> |> dives, what if he was on his way up after being down too deep for too 
>> |> long. You say that a "fatal DCS hit is unlikely anyway", reguardless of
>>
>> That's "regardless", BTW

Please. Let's don't get into spelling and grammar flames in this group.

>Well, once I spent 5 hours at 250' (I had to ascend when O2 toxicity
>induced some pesky little convulsions) and I started hurting pretty
>badly at 60'.  So you must be wrong, Dave. :-) :-)

I said "virtually impossible" with reference to recreational dives,
and specifically to this case, and qualified it with "unless ascending
from much deeper." I wasn't talking about extreme dives.  I understand
that Sheck Exley had a decompression stop below 500 feet in Mante.
I have no doubt he'd have been bent and might well have died if he went
right up to 60. I have personally done support dives for divers who
started decompressing at around 190. Unless otherwise specified in
rec.scuba I assume we aren't talking about these kinds of dives.

Just out of extreme curiosity, what were you doing at 250' for
5 hours? Were you by any chance in a chamber? What were you
breathing? Do you have any idea what decompression the tables
would call for in this situation? Was the pain you felt at 60
feet diagnosed as DCS, or could it have been something else.
You must have a very interesting story to tell about this.
Please say more.

Bill Mayne
Newsgroups: rec.scuba
From: rbeck@mordor.dseg.ti.com (Ron Beck)
Subject: Re: Trip report - Cozumel and Akumal
Reply-To: rbeck@mordor.dseg.ti.com
Organization: When I get time...
Date: Fri, 11 Sep 92 20:36:59 GMT

In article <1992Sep9.152909.12976@isy.liu.se>, Hakan Traff writes:
|> In article <10637@sun13.scri.fsu.edu> mayne@ds1.scri.fsu.edu (Bill Mayne)
|> writes:
|> >Highlights: Punta Sur, cavern dives at Chankanaab, underwater sex
|> >(logistics only), Akumal. Okay and relatively cheap Scuba Inn.
|> >
|> >My wife Kris and I arrived in Cozumel August 10 with a vague plan
|> >but no reservations. On a previous trip we had found the Diver's Inn
|> >which offered an attractive (i.e. relatively cheap) lodging and dive
|> >package. I had been unable to reach them by phone, but figured just
|> >showing up in Cozumel I could find something better than paying U.S.
|> >travel agent prices. I had been particularly disappointed by the
|> >performance of Innerspace Adventures on a previous trip.
|> >
|> 
|> ...and the rest looks wonderful!! But I do not know anything about the place at
|> all, not even which part of the world (no offence). Could you (or anyone)
|> please tell me how to get there. And please do it rather detailed...
|> 
|> Thank you,                
|> Hakan Traff

Hakan,
Cozumel is a small island in the Carribbean.  It is off the Yucatan Peninsula
(the southern tip of Mexico).  American Airlines, Continental and the Mexican
airline (don't remember the name offhand) all fly into the island regularly. 
From the Dallas Texas area it's about the best diving for the money.  I've
been there several times.  We usually leave Dallas in the morning (9ish),
have a short stop in Cancun to drop off passengers & then on to Cozumel.  All
total about 2-3 hour trip.

Go for the experience.  It's great!
-- 
---------------------------------------------------------------------------
Ronald J. Beck           | IP rbeck@mordor.dseg.ti.com |Do now what others
Member, Group Tech Staff | MaBell (214) 952-4566       |won't so you can do
Texas Instruments        |                             |later what others
McKinney, Texas          |                             |can't
---------------------------------------------------------------------------
Newsgroups: rec.scuba
From: mayne@pi.cs.fsu.edu (William Mayne)
Subject: Re: Flower Gardens Tragedy
Reply-To: mayne@cs.fsu.edu
Organization: Florida State University Computer Science Department
Date: Thu, 10 Sep 92 15:20:35 GMT

I question the reliability of reporting a death as caused by the
ancient term Caissons Disease when the the problem started at 60
feet on a dive in the Flower Gardens. (Article <10616@sun13.scri.fsu.edu>.)

In article <19961@fritz.filenet.com> scotth@fritz.filenet.com (Scott Hopson) writes:
>In article <10616@sun13.scri.fsu.edu> mayne@sun16.scri.fsu.edu (Bill Mayne) writes:
>
>Bill is desperately trying again to minimize the seriousness of DCS.

I am not now and have never minimized the seriousness of DCS.
I have only disagreed with obviosuly false pontification like:

  In article <19859@fritz.filenet.com> scotth@fritz.filenet.com (Scott Hopson)     writes:
  > If you get BENT once you can never dive again. That's
  >assuming you live the first time.

>Face the facts, DCS can and has often caused divers to DIE...

DCS is certainly serious and can be fatal, which I have never denied,
but most victims do no die from it. You are focusing on rare worst
case scenarios and ignoring the big picture. I take it very seriously.
Why do you think I take so much interest in nitrox, decompression
models, and in learning about DCS?

> When you say that being hit by DCS at 60 feet is virtually
>imposible you really show your ignorance. What if the guy made multiply
>dives, what if he was on his way up after being down too deep for too 
>long.

What is virtually impossible is having a DCS hit start at 60 feet unless
he had been really deep, much deeper than recreational divers go,
and much deeper than the water at the Flower Gardens. It takes a decrease
in pressure to have DCS, and ascending from 85 to 60 feet won't ordinarily
do it. (Someone has recently posted about 85 as the max. Even it is quite
a bit deeper than that I stand by my statement in this case.)

Whatever this diver's previous dives of the day it is clear we aren't
talking about a 1000 foot saturation dive. In the range of diving we are
talking about DCS is a problem which would show up after surfacing.
Recompression to 60 feet (in a chamber) is treatment for DCS which has
aleady started. Certainly you can get bent diving to 60 feet, or even less,
but the problem won't ordinarily become manifest until you surface.

>"There are old divers and there are bold divers. 
>But there are no old bold divers."

Anybody can quote cliches. If you are going to resort to personal attacks
when your extreme statements are challenged perhaps you will tell us your
qualifications to tell us in rec.scuba all about deep diving and DCS.

Bill Mayne

Newsgroups: rec.scuba
From: cgc2646@usl.edu (Cech Claude G)
Subject: Re: ?diuretics and diving
Organization: University of Southwestern Louisiana
Date: Fri, 11 Sep 1992 00:17:51 GMT

In article <1992Sep10.095542.4031@desire.wright.edu> wall@hel4.brl.mil (Jeff Wall) writes:
>
>You always hear that denial is the first reaction to DCS symptoms, and I
>beleive it.  
>I started to feel a numbness and tingling sensation on the back of
>my left hand.  My first thought was "OH SH*T", then I desided to try and relax
>and think this through 

Hmmmm.  I wonder how much of this has to do with the type of symptom being
felt.  DCS can have alot of symptoms, some of which are more likely than
others, and therefore _possibly_ more likely to be taken seriously.  Anyone
got any statistics (by the nature of the beast, they're likely to be flawed;
still, they'd be of interest) on
	(1) The relative probabilities of specific symptoms given DCS, and
	(2) The frequencies of symptoms in people who seek treatment?
It might also be interesting to know whether there's a correlation between
type of symptom and time at which you seek treatment, No?

Cheers -
	Claude   
Revolutionary slogan for a revolutionary group (NED): Let Them Eat Fish!


Newsgroups: rec.scuba
From: story@sgi.com (David (Duis) Story)
Subject: Re: Flower Gardens Tragedy
Keywords: death
Organization: Silicon Graphics, Inc.
Date: Wed, 9 Sep 92 00:37:37 GMT

In article <1992Sep4.204446.741@engage.pko.dec.com> zipp@foosw6.enet.dec.com (Eric S. Zipp) writes:
>In article <1992Aug31.193103.28963@bnr.ca>, mac@crchh570.BNR.CA (Michael Campbell) writes...
>> 
>>I read with some dismay today of a SCUBA fatality involving a
>>diver at the Gulf of Mexico Flower Gardens Banks dive site. 
>
>
>	Besides the following, the only other information that has been made
>available is that the diver was diving off the boat Miss Vicky (sp) according
>to the Coast Guard, and according the the medical examiner in Galveston, the
>cause of death was ruled CAISSONS DISEASE. The exact nature of his problem
                          ^^^^^^^^^^^^^^^^
>which lead to his death has not been made public. 

Wow!  That term hasn't been used in YEARS and YEARS.  That was one of
the original terms for DCS or "the bends."  Think that that Coroner
has kept up to date with diving medicine?                      

Not!

Dave Story@bent.wpd.sgi.com           NAUI AI Z9588, PADI DM 43922, EMT
    Spearfishing on SCUBA is like hunting bears from a helicopter.


Newsgroups: rec.scuba
From: lls@kings.demon.co.uk (Lady Lodge Systems)
Subject: Re: DIN valves on Faber 7l tanks
Organization: Lady Lodge Systems
Date: Thu, 10 Sep 1992 07:09:57 GMT

In article <1992Sep9.011751.26995@cs.su.oz.au> gregr@cs.su.oz.au (Greg Ryan) writes:
>Someone in the UK might best be able to help me with this one.
>
>"The DIN valves may cause problems: they are apparantly convertable between 
>DIN and the standard type (what's it called?) but I dont quite see how. they 
>tell me you unscrew the valve with an allen key (No 3 or 3A) and then DIN 
>fitting appears."
>
>I can't quite imagine what these valves are like.  Does anyone have
>any experience with this sort of tank and valve?  If so, perhaps you
>could mail me an explanation.

S'Easy - the tank valve looks just like a normal 'A Clamp' valve but has
a plug in the centre that, when unscrewed, reveals the DIN thread.  This
means that you can use the valve with both types of first stage.

FYI - there are 7lt 300 bar cylinders available if you know where to
look. They're heavier than the 232 bar cylinders (10k rather than 8k ish).
Mail me if you want a source.
-- 
Regards,
        Russell
 ---------------------------------------------------------------------------
| Russell Brown          | MAIL : russell@kings.demon.co.uk                 |
| Lady Lodge Systems     | PHONE: 0832 272224 (Home/Work it's all the same) |
 ---------------------------------------------------------------------------
From: devetzis@dexter.bellcore.com (Taso N. Devetzis)
Newsgroups: rec.scuba
Subject: Re: IAND Qualifications
Keywords: nitrox IAND ANDI certification
Date: 10 Sep 92 01:00:27 GMT
Reply-To: devetzis@bellcore.com
Followup-To: rec.scuba
Organization: Broadband Network Management Research Group (Bellcore)

In article <1992Sep5.031228.8373@cs.su.oz.au>, gregr@joyce.cs.su.oz.au (Greg Ryan) writes:
|> The one person who teaches IAND (International Association of Nitrox Divers)
|> courses in Australia has recently split his course, and subsequent
|> certification, into two parts:  Nitrox Diver and Technical Nitrox Diver.
|> 
|> Does anyone on the net know if this is now the practice of IAND in the USA?
|> What about ANDI?  Do they have similar levels of certification?
|> 
|> 				Greg Ryan	gregr@cs.su.oz.au

I don't know about ANDI, but the IAND courses here (New Jersey) are the
same -- Nitrox and Technical Nitrox.  Actually, for the card collectors,
there are a bunch of specialty courses as well (i.e. Nitrox Wreck Diver,
etc.).

--taso

-- 
Taso N. Devetzis
Bellcore
devetzis@bellcore.com     ...!uunet!bellcore!devetzis
From: gumby@ucsd.edu (Henry Ptasinski)
Newsgroups: rec.scuba
Subject: Info Wanted - Baja California
Keywords: Baja, California
Date: 8 Sep 92 21:21:33 GMT
Reply-To: gumby@ucsd.edu


I'm looking for any information and opinions on dive sites in Baja California.   
I'm familiar with La Bufadora (just south of Ensenada), but I'd like to get  
some opinions for other areas for a more extensive trip which I'm attempting to  
organize.  The people involved are all moderate skill level.  Also, we'll have  
a 14' boat and (hopefully) our own compressor, so somewhat less developed (less  
touristic) sites should not present any problems.

Thanks in advance for any input.

Henry P.
gumby@ucsd.edu
Newsgroups: rec.scuba
From: rbeck@mordor.dseg.ti.com (Ron Beck)
Subject: Re: Renting a dive computer... ?
Reply-To: rbeck@mordor.dseg.ti.com
Organization: When I get time...
Distribution: na
Date: Fri, 11 Sep 92 21:26:05 GMT

In article <1992Sep9.185424.20145@linus.mitre.org>, m14494@mwvm.mitre.org (Mike White) writes:
|> I'm planning a dive trip to the Carib. sometime later this year,
|> (Happy, Happy... Joy, Joy... !), and would like to use a dive
|> computer for safety & efficiency.  I checked out a comparison
|> article in a recent dive mag, and I'm experiencing sticker
|> shock!  Any one worth having is $500 and up, mostly up!
|> I just want to go diving for a week or so, not send the dive
|> shop owner's kids to college!  Do dive shops usually rent these
|> things out, say by the week?  If so, how much do they typically
|> charge?  Any recommendations on models to look for or 
|> avoid?  Thanks.
|> 
|> ************************
|> * These are my opinions only.*
|> ************************

We have a shop in town that rents dive computers.  The owner insists (and
rightly so I think) that you rent the computer along with the regulator. 
This saves trying to fit the computer to your regulator.

I've used a dive computer and I wouldn't go on a dive vacation without one
ever again!!!!  I loved it!

	These too are only my opinions!
-- 
---------------------------------------------------------------------------
Ronald J. Beck           | IP rbeck@mordor.dseg.ti.com |Do now what others
Member, Group Tech Staff | MaBell (214) 952-4566       |won't so you can do
Texas Instruments        |                             |later what others
McKinney, Texas          |                             |can't
---------------------------------------------------------------------------
Newsgroups: rec.scuba