suunto vyper odd noise

I have a Suunto Vyper which is four months old and has been in the
water 5 times. Using the simulator mode to get to know it the other
night, I noticed that whenever the backlight is on there is a
constant, high-pitched beep/whine coming from the computer as well (I
switched the backlight on and off several times to confirm this). This
noise is fairly quiet, and is distinct from the warning beeps/alarms
the computer has. I am going to ring up the shop where I bought it to
see what they say, but I wondered if anyone else has experienced this
with a Vyper? Although the noise itself isn't much of a problem, I'm
worried that it might be indicative of a more serious fault.

Will.

(Handy thing that simulator mode. I now know that should I ever make a
dive to 150 metres for about 6 minutes, then I can expect to make my
first deco stop at 40 metres. Although that is using air...)

> night, I noticed that whenever the backlight is on there is a
> constant, high-pitched beep/whine coming from the computer as well (I
> switched the backlight on and off several times to confirm this). This
> noise is fairly quiet, and is distinct from the warning beeps/alarms
> the computer has.

Its not a problem, and not specific to the Vyper - a lot of LCD backlights
do make a noise, i'm not really sure why, but I know I have an alarm clock
which does the same thing.
I wouldn't worry about it.

David

Will wrote:
> I have a Suunto Vyper which is four months old and has been in the
> water 5 times. Using the simulator mode to get to know it the other
> night, I noticed that whenever the backlight is on there is a
> constant, high-pitched beep/whine coming from the computer as well

They require high voltage to operate so it's probably
the inverter that is generating the noise. My bedside
clock does the same thing.

> (Handy thing that simulator mode. I now know that should I ever make a
> dive to 150 metres for about 6 minutes, then I can expect to make my
> first deco stop at 40 metres. Although that is using air...)

If you should ever dive to 150m for 6 mins I sincerely hope
you don't use a Vyper as a dive planner. You might not live
to regret it.

- Keith

"Keith S." <false@nospam.com> wrote in message news:<RvaWb.2960$vo1.1946@newsfep4-winn.server.ntli.net>...
> Will wrote:
> > I have a Suunto Vyper which is four months old and has been in the
> > water 5 times. Using the simulator mode to get to know it the other
> > night, I noticed that whenever the backlight is on there is a
> > constant, high-pitched beep/whine coming from the computer as well
>
> They require high voltage to operate so it's probably
> the inverter that is generating the noise. My bedside
> clock does the same thing.
>
> > (Handy thing that simulator mode. I now know that should I ever make a
> > dive to 150 metres for about 6 minutes, then I can expect to make my
> > first deco stop at 40 metres. Although that is using air...)
>
> If you should ever dive to 150m for 6 mins I sincerely hope
> you don't use a Vyper as a dive planner. You might not live
> to regret it.
>
> - Keith

Never fear! I have no intention of diving to 150m ever; no-stop dives
to 30m are quite deep enough for me! The dive simulator mode is good
though, as you can get an idea of what the display will look like for
safety stops, mandatory safety stops and deco stops before you find
out for real. I read in the manual of how the deco "ceiling" gets
deeper as your decompression obligation builds, and so out of academic
interest I wondered what it would look like at 150m.

I am not entirely convinced that computers are great for deco dives.
Surely if you are going to have to spend a significant amount of time
decompressing then you need to know what your stops will be before the
dive, so you can take the correct amount of gas with you? With a
computer this may not always be the case. How would people plan deco
dives with a computer? If you were using a computer for dives with
only a few minutes of deco could you work backwards by calculating how
much deco you can do (ie how many minutes of stops you can let the
computer build up) from the amount of gas you are carrying?

Will

On 11 Feb 2004 05:30:53 -0800, Will@willj1979.fsnet.co.uk (Will)
wrote:

> you can get an idea of what the display will look like for
>safety stops, mandatory safety stops and deco stops before you find
>out for real.

What is the difference between a mandatory safety stop and a deco
stop?

Pete
diving 'at' melbourne 'dot' me 'dot' uk

Pete Melbourne wrote:
> Will wrote:
>
>> you can get an idea of what the display will look like for
>> safety stops, mandatory safety stops and deco stops before you find
>> out for real.
>
> What is the difference between a mandatory safety stop and a deco
> stop?

A mandatory safety stop is something you do so you
can gas off without doing decompression diving
which, of course, you would never contemplate.

This subterfuge is necessary because nitrogen is
too stupid to be able to tell a recreational diver
from a technical diver and never checks the tables
to see if it has any right to be there.

HTH
nigelH

Will wrote:

> I am not entirely convinced that computers are great for deco dives.
> Surely if you are going to have to spend a significant amount of time
> decompressing then you need to know what your stops will be before the
> dive, so you can take the correct amount of gas with you?

Yup you're spot on there. As soon as you're clocking up over 5 mins deco
you really need to have done the sums first.

- Keith

Will <Will@willj1979.fsnet.co.uk> wrote:

> Surely if you are going to have to spend a significant amount of time
> decompressing then you need to know what your stops will be before the
> dive, so you can take the correct amount of gas with you? With a
> computer this may not always be the case. How would people plan deco
> dives with a computer? If you were using a computer for dives with
> only a few minutes of deco could you work backwards by calculating how
> much deco you can do (ie how many minutes of stops you can let the
> computer build up) from the amount of gas you are carrying?
>

Not quite

A technical diver who gets in the water for a deco dive without knowing
how long their stops will be and how much gas those stops will use as
well as how much back gas they will use during the dive is an
excellent candidate for a Darwin Award

Seriously though, most decompression dives are done using a PC or PDA
and some deco software to plan with. Once you have worked out how long
you will be at different depths (bottom and stops) and the mixes you
will be using, you can then calculate how much gas you will have to take
with you to do the dive (using your SAC) plus a safety margin. It is possible
to do this using a dive planner on a dive computer but I don't know anyone
who does it that way... probably because they are so damn fiddly and most
tekkies have access to a PC or PDA.

Nick

"Nigel Hewitt" <news@REMOVETHISnigelhewitt.net> wrote in message
news:db8f1ff9f5401b4ff9e184f836f0ddfc@news.teranew s.com...
> Pete Melbourne wrote:
> > Will wrote:
> >
> >> you can get an idea of what the display will look like for
> >> safety stops, mandatory safety stops and deco stops before you find
> >> out for real.
> >
> > What is the difference between a mandatory safety stop and a deco
> > stop?
>
> A mandatory safety stop is something you do so you
> can gas off without doing decompression diving
> which, of course, you would never contemplate.
>
> This subterfuge is necessary because nitrogen is
> too stupid to be able to tell a recreational diver
> from a technical diver and never checks the tables
> to see if it has any right to be there.
>
> HTH
> nigelH
>
>
Sorry, should have made it clearer that I was actually referring
specifically to my Vyper computer. On all dives it advises you to do a 3min
safety stop at between 3 and 6m. If on a dive you ascend faster than the
maximum ascent rate of 10m/min it then flashes a warning and gives you what
the manual calls a "mandatory safety stop". The display for this looks
slightly different to what is displayed for a deco dive or a normal safety
stop. If you don't do the mandatory stop the display shows a warning symbol
and no-stop time for the next dive is reduced.

Will.

Will wrote:
> "Nigel Hewitt" wrote
>> A mandatory safety stop is something you do so you
>> can gas off without doing decompression diving
>> which, of course, you would never contemplate.
>>
>> This subterfuge is necessary because nitrogen is
>> too stupid to be able to tell a recreational diver
>> from a technical diver and never checks the tables
>> to see if it has any right to be there.
>>
> Sorry, should have made it clearer that I was actually referring
> specifically to my Vyper computer. On all dives it advises you to do
> a 3min safety stop at between 3 and 6m. If on a dive you ascend
> faster than the maximum ascent rate of 10m/min it then flashes a
> warning and gives you what the manual calls a "mandatory safety
> stop".

I was just bitching about the way manufacturers and some agencies
pretend there is such a thing as no-decompression diving. Once you
have the big lie established little lies like "stops that are good but
aren't deco" are easy.

It may be that your deepest required stop is at 0m but you are still
decompressing and enough people get bent inside NDLs to prove it.

nigelH