Happy Marine Electronic Service is a Shanghai-based marine electronics service company supporting merchant vessels calling at the Yangtze River Delta ports of Shanghai, Ningbo, Zhoushan, Taicang and the surrounding region. The firm operates under recognitions from CCS and Lloyd's Register for the relevant scopes of bridge and radio survey work, and engineers are deployed for class-mandated tests and routine maintenance of bridge, communications and safety electronics on Chinese and international tonnage calling at the city's container, bulk, ro-ro and cruise terminals.
Radio survey activity forms a core part of the business. Happy Marine technicians carry out GMDSS annual radio surveys covering MF/HF and VHF radios, EPIRBs, SARTs, NAVTEX receivers, satellite terminals and the associated power supplies in line with SOLAS Chapter IV. GMDSS equipment service and repair is delivered alongside the survey scope, with parts replacement and antenna and aerial work performed during the attendance to close out class items in a single visit. AIS annual inspections, including antenna checks, position-source verification and configuration audits, are documented to class and flag-state requirements.
Voyage Data Recorder annual performance tests cover both VDR and S-VDR installations from major manufacturers, with data extraction, sensor channel testing, microphone and CCTV verification and float-free capsule checks performed in accordance with IMO performance standards. NDT and remote inspection assignments complete the portfolio, supporting owners who need additional technical documentation alongside their electronics survey. With workshop space in Shanghai and a dispatch team that can attend ships during short port stays, the operation is positioned to consolidate class radio renewals into single attendances for fleet managers operating through the city's terminals during routine voyage rotations.