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Differences in Analog and Digital SPGs – 3.5 min

Steve MartinAugust 24, 20231 Comment

Back to: All Divers Course | 9 h 41 min split over 58 videos

Previous Lesson
Hyperbaric Chamber Visit and Advice From Vas – 12 min

We discuss Vas’ visit to the hyperbaric chamber and dispel some of the myths about hydration levels, repetitive diving and time on surface between dives. As well as what are the best dive practices you can do to limit your chances of experiencing decompression sickness

Next Lesson
Explaining The Ratings On Pressure Gauges – 10.5 min

We discuss the manufacture depth ratings and accuracy of different types of Analog SPGs and which is better plastic v glass faced, plus the potential problems with each. We also cover how electronic depth gauges compare and the issues with those

One Comment on “Differences in Analog and Digital SPGs – 3.5 min”

  1. Oliver Noeldeke
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    Oliver Noeldeke
    08.27.2023 at 3:43 pm

    After two broken glasses within half a year – one I don´t know the reason for, one by colliding cylinders – I have returned to plastic and have no problem since more than one year.

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Course Syllabus

  • New Lessons 2023
    • DPV Diving | What You Need To Know – 25 min
    • What Weight Do You Need? Doing the Maths – 14 min
    • What Weight Do You Need? Expanded – 20 min
    • General Tips On Looking After Your Equipment – 7.5 min
    • How Important Is Knowing Your Air Pressure – 11.5 min
    • Failures Underwater – Small v Big Bubbles – 9 min
    • What We Want Out Of A Dive Computer – 26 min
    • Hyperbaric Chamber Visit and Advice From Vas – 12 min
    • Differences in Analog and Digital SPGs – 3.5 min
    • Explaining The Ratings On Pressure Gauges – 10.5 min
    • Our Views On Analog Or Digital Compasses – 5 min
    • Drysuit | Sizing Socks and Rock Boots – 7 min
    • Tips and Advice That Will Help All Divers – 18.5 min
  • Advice and Workshops
    • Pony Bottles And Should We Use Them – 7 min
    • Important Details You Must Record In Logbooks – 5.5 min
    • Why We Stopped Offering In-Water Twinset Training – 7 min
    • Spools, Reels and SMB’s – 9 min
    • Accessory Pouch Options – 9 min
    • Spares Kit for Boat or Car – 3.5 min
    • Regulator Breakaway Boltsnap – 6.5 min
    • Regulator Bungee Necklace – 4 min
    • Should I Get A Dive Computer With Transmitters – 8 min
    • More on Transmitters And Computers – 7 min
    • Fix a Leaking Pressure Gauge – 1.5 min
    • Useful Accessories for Divers – 9 min
    • Eezycut | Line Cutting Tool – 1 min
    • Quick Fixes with Cable Ties – 4 min
    • Fourth Element – Exposure Protection – 10 min
  • Rescue
    • Rescue Training on an Unresponsive Diver – 8 min
    • Rescue Training on Ventilation Methods – 7 min
    • Rescue Training on Equipment Removal – 7 min
  • Safety Drill | Descent | Ascent
    • Descent Training and Team Descents – 15 min
    • Ascent Training and Team Ascents – 15.5 min
    • S-Drills & Team Safety Drill Training – 6 min
    • S-Drill Demos and Problem Solving – 10 min
  • How To Manage A BCD / Wing Failure
    • Single Cylinder Divers | Wetsuit – 8.5 min
    • Technical Divers – Single Stage | Wetsuit – 15 min
    • Technical Divers – Multi-Stage | Drysuit – 20 min
    • How To Handle LP and HP Failures – 17 min
    • Pony Bottles And Should We Use Them – 7 min
  • General Skills and Information
    • Communication | Stop Looking Down – 8.5 min
    • Out of Air and Long Hose Benefits – 4 min
    • Comprehensive guide to using a compass – 22 min
    • Dive Planning | What You Need to Know – 23 min
    • More on Breathing, SAC Rates, Lung Volume Holds – 9.5 min
    • Dealing With Current, Surge And Drift – 8.5 min
    • Using a Control Line for Skill Building – 4.5 min
    • Mask Fitting & Clearing Techniques – 5.5 min
    • Find out your Underwater Air Consumption – 8 min
  • Correct Weighting | Bouyancy | Drysuit
    • Does Your Harness & Wing Choice Have A Big Impact – 6 min
    • Why End Of Dive Weight Check Is Most Important – 8.5 min
    • How Important Is Your Breathing Cycle – 16 min
    • Advanced Buoyancy | Lung Volume Training – 7 min
    • Guide to Correct Weighting with 1 Cylinder – 16.5 min
    • Advice For Drysuit Users | Suit Choice – 6 min
    • Drysuit Users | Moving Weight Around – 8.5 min
    • Drysuit Accessories | Gloves, Seals and Tips – 8 min
    • Drysuit | Heating Systems And How To Setup – 9 min
  • Finning Techniques
    • Training for Good Body Posture
    • The Modified Flutter Kick
    • The Frog Kick
    • The Modified Frog Kick
    • The Shuffle Kick
    • The Helicopter Turn
    • The Back Kick
    • Back Kick : Problem Solving
    • Back Kick : Spool & Ground Touch
    • Back Kick : Student Mastery
    • Training without Fins
    • Pull and Glide : Overhead Training
    • Fins : Performance Testing
    • Fins : Weight Testing
    • Exercises & Stretches for Divers
  • Hand Signals
    • Hand Signals : General Diving
    • Hand Signals : Counting with One Hand
    • Hand Signals : Finning Techniques
    • Hand Signals : Skills Training
    • Hand Signals : Technical Diving
    • Hand Signals : Overhead Diving
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