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Keep shoppingNo-Deco Diver Planner Made Simple: NDL Tables, ABT, RNT, TBT
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12 students
No-Deco Diver Planner Made Simple: NDL Tables, ABT, RNT, TBT
Master NDL Tables, ABT, RNT, TBT, Surface intervals and Pressure Group - No More Confusion!
Created byFrank Yamamoto
Last updated 7/2026
English
What you'll learn
- Plan safe no-decompression dives using Table 1,2, and 3 (NDL, surface interval credit, penalty time
- Calculate ABT, RNT, TBT and minimum surface interval for repetitive dives
- Read and draw the dive profiles and find your pressure group from A-Z
- Understand nitrogen on-gassing, off-gassing and how to prevent DCS (the bends)
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Course content
8 sections • 11 lectures • 38m total length
Requirements
- Pen, paper, and printable RDP table (provided in Lecture 1). No prior dive planning experience needed
- Pen and paper
Description
Are you confused by No-Decompression Tables? Do ABT, RNT, TBT and Pressure Groups make your head spin?
This course makes the No-Deco Diver Planner SIMPLE!
Designed for beginner scuba divers, Divemaster candidates, and Instructors who want a crystal-clear refresher, this step-by-step course breaks down the NDL Table (Dive Tables 1, 2, and 3) into easy, logical lessons you can master in under an hour.
What you will learn:
- How to use Table 1 (NDL), Table 2 (Surface Interval Credit), and Table 3 (Repetitive Dive Planning) with confidence
- The difference between ABT (Actual Bottom Time), RNT (Residual Nitrogen Time), and TBT (Total Bottom Time)
- How to calculate Pressure Groups correctly after every dive
- How to plan repetitive dives safely without guessing
- Full dive profiles from start to finish - putting it all together
- Dive Physics essentials: Pressure, Nitrogen Absorption and Decompression Sickness explained simply
This course includes 11 lectures, real examples, downloadable cheat sheets, and a final exam to test your mastery.
No more confusion. No more fear of dive tables. After this course, you will plan dives like a pro and Dive Smart!
Perfect for PADI, SSI, NAUI students and any diver who wants to be safer underwater. Enroll now and master your NDL Tables today!
Who this course is for:
- New divers, Open Water students, Dive Masters and Instructors refreshing dive table skills, and anyone who wants to understand the NDL without a dive computer
- New scuba divers and Open Water students who find dive tables confusing, certified divers who want to plan dives without a computer, and Divemasters & Instructors refreshing their NDL skills for teaching or Exams. Anyone who wants to truly understand No-Deco Limits, ABT, RNT, and TBT