Ms. Lisa Brisson was the lead engineer for EdgeTech’s bathymetric products. Her expertise is in underwater acoustics and hydrographic surveying. Over the last years she has been instrumental in the development, introduction and support of the EdgeTech 6205 Multi Phase Echo Sounder. Her latest work was focused on the adaptation of the 6205 for unmanned vehicles. Since then I've moved on to becoming the senior systems engineer at ECHO81, LLC. I now provide support, training, and consulting to the hydrographic community around the world.