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The hand signal "OK" Diver communications are the methods used by divers to communicate with each other or with surface members of the dive team. In professional diving, diver communication is usually between a single working diver and the diving supervisor at the surface control point.
Technical diver during a decompression stop. There is some professional disagreement as to what exactly technical diving encompasses. [10] [11] [12] It is an arbitrary distinction, and the line has been drawn in different places by different organisations, and has shifted on a few occasions.
The person who administers a United States university's research diving safety program. [38] diving signals. Main article: Diver communications. Hand sign and light sign system used by scuba divers to communicate when underwater. diving stage. Also: "basket" See: Decompression practice#Diving stages and wet bells
Communication is central to buddy and team diving. DIR divers must be competent at underwater communication by hand signals and light signals, and to use them to ensure that they are always aware of the status of the rest of the team. DIR divers have an extended range of hand signals, some particularly relevant to overhead and decompression diving.
The diver hand signal for starting the descent. Descents may be made along a shot-line, along the slope of the bottom, or in open water clear of any physical or visual cues to rate of descent other than the depth gauge or dive computer carried by the diver.
A system recommended by some organisations, mostly those involved in technical diving (GUE, [24] CMAS-ISA, other tech and cave diving groups) is to equip the regulator normally used throughout the dive (the "primary") with a long hose, typically 1.5 to 2 metres (5 to 7 ft) long, proportional to the height of the diver. This is the regulator ...
Technical diving (1 C, 2 P) U. Underwater diving decompression (3 C, 2 P) ... Diving bell deployment; Diving hand signals; List of diving hazards and precautions;
The US RSTC has been responsible for the development of a standard medical statement (in conjunction with the Undersea and Hyperbaric Medical Society) and minimum training standards for diving hand signals and the following recreational diver grades - Introductory Scuba Experience, Supervised Diver, Open Water Diver, Enriched Air Nitrox ...