Years ago, we developed the DiveTracker as a buddy locator; the goal was to be able to return to your buddy when you wanted to re-group. The DiveTracker Scout began an evolution of typical underwater tasks such as marking of underwater objects, recovery of underwater instrumentation and vehicles, general diver navigation, and emergency pingers for divers. The chief attractions of the DiveTracker are ease of use, low cost and operational reliability due to their simplicity. The SCOUT set consists of two components, a transmitter and a receiver. Using the indicators on the receiver, a diver can easily return to any location or object marked with a transmitter. An added benefit is any number of receivers can be used with one transmitter, allowing a group of divers to use the system.