NAIS-400
Simrad NAIS-400 is a Automatic Identification System transponder listed in the supplied equipment record. It is normally installed on the bridge with interfaces to GNSS, heading, speed and other navigation sensors and with dedicated VHF antennas. Its primary purpose is to transmit and receive vessel identity, position, course, speed and voyage-related data for traffic awareness and regulatory reporting. Compared with ordinary VHF radio, AIS exchanges structured digital navigation data automatically and depends on several external sensor and data interfaces. The model designation identifies a particular manufacturer configuration, but the supplied record does not define every hardware, material, control, or certification difference to adjacent models. For exact ratings, dimensions, settings, materials, connection details, and variant-specific limits, refer to the manufacturer documentation for the exact figure.
Components & Design
Component data being added…
Technical Data
🤖 Ask about this model
One free question — answered like a marine engineer. No account needed.
Common failures & inspection points
Service & Maintenance
Verify own-ship static and voyage data, sensor inputs, antenna condition, alarms and target reception. Compare transmitted information with approved vessel particulars and bridge sensors. Check interfaces to ECDIS, radar or pilot plugs where fitted. Radio performance testing and configuration changes must follow approved service procedures.
Suppliers & Spare Parts
Direct links to manufacturer, datasheet, spare-parts portal and dealers — request access below.
📄 Request sourcing links & documentsCases, daily reports, timesheets and AI troubleshooting in the OceanSphere Marine app — free for 14 days.
Start free trial →Find manufacturers, repair shops and spare-part dealers in the Maritime Network — our global company directory.
Maritime Network →