Zabel, F.Martins, C.2014-10-132014-10-132009http://hdl.handle.net/10400.1/5290SiPLAB Report 07/09, FCT, University of Algarve,2009.This document describes the laboratory tests performed on the Subsurface Telemetry Unit (STU) which was developped for the Underwater Acoustic Network EU-FP7 Project. The tests are separated into mechanical, energy, cable, electronics, acoustic acquisition, STU computer and the base station.engreport