Best First Dive Comp under $700?

[tbone1004]

check the dive times between 20' and 10' last stops, it is basically the same until you get into REALLY long dives. Set the Petrel at 10' last stop, and stay at whatever depth you want. They give you 10' as a limit for the stop which is nice especially in caves where 15' may not be feasible, but you can stay at whatever depth you want and it'll keep track of it for you. Once you're on 100% O2, it is pretty inconsequential for the depth

 

[dmaziuk]

Yes, your non-point is that you can't customize something that is fixed. Low end of the target market. That is a nice, cheap, robust, low-power option. (TFT) Back to high end of the target market. I pretty much know what I'm talking about, I'm a retired EE, Systems (hardware).

Yeah but I bet if you had to develop a new device now, you'd find that a fixed-segment LCD is not significantly cheaper nor less power-hungry than a TFT. And that the latter is only "high-end" because it's not the good old mass-produced Seiko that already got plenty of return on their R&D investment.

 

[lowviz]

Yeah but I bet if you had to develop a new device now, you'd find that a fixed-segment LCD is not significantly cheaper nor less power-hungry than a TFT. And that the latter is only "high-end" because it's not the good old mass-produced Seiko that already got plenty of return on their R&D investment.

You like to argue the point. Fine.

High end (in my present usage) only refers to price point. As in the most "glitz" that you can sell to that target market and still make a profit.

I survived the best and worst years of electronics by realizing two simple things. Everything that came before is worthless and it is only that which strikes the fancy of the center of the bell curve of disposable income that matters.

Everything you posit is passé. Have you seen what is being released today?

 

[dmaziuk]

High end (in my present usage) only refers to price point.

OK. I was thinking bang, not buck.

Everything that came before is worthless and it is only that which strikes the fancy of the center of the bell curve of disposable income that matters.

Everything you posit is passé. Have you seen what is being released today?

Heavily subsidized telephones. Have you seen raspberry pi?

 

[lowviz]

... Have you seen raspberry pi?

Oh yeah.

But I've been a LabVIEW kind of guy since forever. Better suited to my needs.

Give you a valuable tip: Curve fit your data sets in TableCurve 2 or 3D (as needed) then program the equation it spits out in whatever. Ron Brown wrote the sparse matrix program. The guy is a freaking genius, really nice guy too. But if your app requires a high speed real time solution, you got problems. However, everything is fast enough today that these issues have almost become non-existent.

[/HIJACK]

 

[dmaziuk]

But if your app requires a high speed real time solution, you got problems. However, everything is fast enough today that these issues have almost become non-existent.

I doubt any sampling rate that makes practical sense for deco, ascent rate, etc. calculations would qualify for real-time anyway. Very soft real time maybe. Even on the software side if you just took linux, a modern kernel should have more than enough rt hooks to run the same models as Seiko DCs at least as well. [/HIJACK]

 

[RogerDodger]

I second the petrel. Amazing piece of equipment

Sent from my SM-N910T using Tapatalk

 

[Grender]

For a first computer you really think the Petrel is the way to go? I disagree, I think the best for a newb is something air integrated. The Sherwood Wisdom 3 is a great one. Welcome to Sherwood Scuba!

 

[buddhasummer]

For a first computer you really think the Petrel is the way to go? I disagree, I think the best for a newb is something air integrated. The Sherwood Wisdom 3 is a great one. Welcome to Sherwood Scuba!

Why do you think AI is best for a new diver? Cheers.

 

[Dr. Lecter]

For a first computer you really think the Petrel is the way to go? I disagree, I think the best for a newb is something air integrated. The Sherwood Wisdom 3 is a great one. Welcome to Sherwood Scuba!

AI is at best a nice way to log air pressure, and it's hardly justification for settling for a product that's inferior as a dive computer (including for recreational diving), which almost everything is when compared to the Petrel and SW's service/support. Outside the US and Canada, maybe the calculation is different, I'll allow.