sonar

Serenity Concept seems to be a French company that made a touchscreen-only dive computer, the S1, back in 2017 or so. Link to it on TDL It looks like they may have made a new one, the S2 Sonar, which has a boat hull transponder connected to it to lead you back to the boat? Definitely an...

September 2019 Hello, I'm working with three Fire Rescue agencies that have at least one important thing in common: limited budget for side-scan sonar. All three are volunteer-based, freshwater lake departments, trying to equip their small boats with gear for rescue/recovery ops. They have...

I am in the planning phase for diving with an active source, specifically a series of underwater robots that track each other. I would like to be in the water with them to observe their actions but I want to mitigate as much risk as possible. The robots’ sonar transmits in the 17-34 kHz range...

I am writing to you from Romania, regarding a drowning case in a lake dam which took place few days ago. I am personally involved in the case, as member of a volunteer rescue team. Divers from our team and the emergency inspectorate were unable to locate the body of the victim over the last five...