DIVE
TABLE AND DIVE KOMPUTER
Commercial/military
tables worked. but they weren't ideal.
In 1988, DSAT (Diving Science &
Technology) introduced the Recreational
Dive Planner (RDP) which were the first
dive table, designed for planning and
making no decompression recreational
dives. They were the first (and at this
writing. still the only) such tables
validated by test dives by volunteer
recreational divers - men, women, younger.
older, etc.
This
remains one of the largest and most
extensive decompression tests in recreational
diving. Distributed by PADI, the RDP
quickly became (and remains) the world's
most popular dive tables: quite a few
popular dive computers even employ 1ZDI'
teat data in their electronic decompression
models.
It's
available in a Table(conventional) format,
and in The Wheel (circular slide rule)
format, in both metric and imperial
versions. For divers accustomed to conventional
tables, DSAT developed The Wheel. To
simplify use and to make multilevel
diving possible without a dive computer
'more about multilevel diving in a moment.
MAT developed The Wheel. You'll he learnig
to use one or the other as part of this
course - you should know which already.

Dive
computers do the same job as dive tables,
and they do it in the same way - by
using a model to determine how much
nitrogen you theoretical have in your
body. They're neither more nor less
valid than dive tables, ,so don't let
the electronics, lights, beeps and digital
displays impress you.
The
difference between a dive table and
a dive computer is this: to be workable
on a piece of plastic, a dive table
uses a series of enough approximations
for possible dives into which You fit
Your dive. whereas a dive computer uses
a depth gauge, timer and software to
write a custom dive table for your exact
dive. Throughout the dive. your computer
updates this "custom table"
as you change depth. constantly showing
you how much no stop dive time you have
left.
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