https://www.advancednavigation.com/acoustic-navigation/usbl/subsonus/
Subsonus | Compact Underwater Position System
Mar 12, 2025 - Subsonus is a compact underwater position system by Advanced Navigation that also operate as a modem to transmit user data underwater.
subsonuscompactunderwater
https://www.advancednavigation.com/acoustic-navigation/transponders/subsonus-tag/
Subsonus Tag | Underwater Transponder | Advanced Navigation
advanced navigationsubsonus