The following is a step-by-step connection guide for SonarMite Echo Sounder with Leica Viva/Captivate GNSS. When measuring a GNSS position, the most recently received echo sounder depth will be recorded as an Annotation to that measured point.
Sonarmite QuickGuide for Captivate

Please note that this is a Captivate Specific guide and best practices are to ensure that all connections working prior to initiating field work.  For more information on connecting with a Seafloor Sonarmite and any other sounders, please visit Seafloors directly:  
User Manuals | Seafloor Systems Inc