The Kongsberg HiPAP family consists of the world’s most successful underwater positioning systems. It was first developed with a focus on the Super Short Base Line (SSBL) principle as this was a market requirement of trying to avoid the Long Base Line (LBL) principle in deep water and in accurate seabed survey applications. The main advantage of the SSBL principle is that it only requires installation of a single vessel mounted transducer and one subsea transponder. The unique transducer technology and advanced digital signal processing was found to be the ideal solution for obtaining the optimal position accuracy required in any water depths. All Kongsberg HiPAP models operate the latest acoustic protocol for positioning and communication, Cymbal. All new generation HiPAP models are compatible with earlier generations of transponders.