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We use Interspiro FFM's and OTC's 'Buddy Phone' wireless communications system. It works *great*. The Swedish Fire Dept. and the Swedish Navy has tested it and found it great. Range under water is 50m under really bad conditions and well over 100m under favorable conditions. The surface unit (VOX or manual mode) ranges up to 1000m u/w. Each diver carries a diver unit and the crew on the surface uses the surface unit. We use it for wreck diving, cave diving (not much use of the surface unit) and when working. We recover sunken timber. The timber was transported and stored in lakes by the sawmills. The visibility is nil. You find the logs when they hit you right on the nose. They are stacked on each other so you really need the comm system to maintain safety. - Sigmund Lundgren Swedish mud sucker >Please pardon me for initiating a completely new thread, but I would like >to know >a bit about the communications systems that you people use. I have seen >systems >that cover the nose/mouth area like a surgeon's mask, systems that are >integrated >into full-face masks, and (admittedly cheap) systems that are integrated into a >reg second stage. What do you use and/or prefer, and why? As well, are those >commercial-type diving helmets readily available to the technical/recreational >diving community? I know they are used by scientific divers in polar >regions, and also >by some cavers (something I saw on TV). It makes a lot of sense to have >that sort of comfort and exposure protection, as well as facilitating easy >communications, and I >would be most appreciative of any input on either of these two subjects. > >-Sean T. Stevenson >-- >Send mail for the `techdiver' mailing list to `techdiver@terra.net'. >Send subscription/archive requests to `techdiver-request@terra.net'. -------------------------------------------- Sigmund Lundgren, SWEDEN PADI Instructor email: sigmund.lundgren@ma*.sw*.se* --------------------------------------------
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