I am wondering if i can use sonar in a cave , in a submerged part of the cave ,any suggestions?
Has anyone used any of the more economical side scan sonar systems currently available? Deep Vision, Edge Tech or the Hummingbird 1100 serie
The way the drawing shows the gears it would just go around in circles counterclockwise, what is the real gear pattern?
Hi, Anyone have any thoughts regarding low cost magnetometers? Thinking about a tow fish situation to map areas around several islands. THX
How to i convert the listed gps numbers in this site in degrees, minute, seconds, and .seconds into the format my gps uses degree minutes.mm
What is a line boat?
Anyone interested in an older but virtually new Marine Sonic sonar system with a 600kHz and a 900 kHz transducer??
Where can I find info about the Oconto that ran aground in Saginaw Bay around 1885?
The National Museum of the Great Lakes is excited to announce the release of a new book titled Shipwrecks of Lake Ontario: A Journey of Discovery. This book contains stories of long lost shipwrecks and the journeys of the underwater explorers who found them, written by Jim Kennard with paintings by Roland Stevens and underwater imagery by Roger Pawlowski.
The recent discovery of the wreck of the British warship Ontario, “the Holy Grail” of Great Lakes shipwrecks, solves several mysteries that have puzzled historians since the ship sank more than two centuries ago. Now, for the first time, the whole tragic story of the Ontario can finally be told.