Emperor Divers' Red Sea Forum

Hello Emperor Divers,

I'm thinking of taking the Extended Range Diver course but I got confused after reading the TDI course descriptions.
I don't understand what is the difference between the Decompression Procedures course and the Extended Range course.
The only difference I can see is that the one certifies you to 45m and the other to 55m. What will I learn more during the Extended Range course that it was not covered during the Deco Procedures course?

Below I have copy/pasted directly from Tdi's page the description of the foresaid courses.

Decompression Procedures
This course examines the theory, methods and procedures of planned stage decompression diving. The objective of this course is to train divers how to plan and conduct a standard staged decompression dive not exceeding a maxium depth of 150fsw/45msw unless taught in conjuction with advanced nitrox, Extended Range or Advanced Wreck Courses. The most common equipment requirments, gear set-ups, decompression
techniques and decompression mixtures (including oxygen and nitrox) are presented.

Extended Range
This course provides the training and experience required to competently utilize air for dives up to 180 fsw/55msw that require staged decompression, utilizing nitrox mixtures and oxygen during decompression

Hopefully your info will help me to decide whether to attend or not an ERD course.

Thanks!

Hi there,

Thanks for your post, I have spoken with our Tech Manager who has said the following:

The Decompression procedures course teaches you how to do decompression stops at 9 and 6 m for a limited time. You use any gas you are qualified to use to on the deco help maximize safety. The max depth of this course is 45m.

You need to have Advanced Nitrox AND Decompression procedures before you proceed onto either Extended Range OR Basic Trimix.

The Extended Range course teaches you how to do longer deco stops at all depths using different nitrox mixtures to accelerate your deco. You go into gas planning, use of different mixes and decompression software planning to plan all your dives down to 55m

The Basic Trimix course is the same as format as the Extended Range except you will be using Helium based mixtures for the dives down to a maximum depth of 60m. Most people do this course if they suffer from Narcosis or tend to dive in cold dark waters. Either one of these is then the pre requisite to Advanced Trimix.

For further details and prices as well as to check availability if you did wish to book any TDI courses, please contact Aaron on tech@emperordivers.com.

I hope this helps!

Kind regards,

Laura