Certified AIS Engineering, Diagnostics & Regulatory Compliance in UAE
Navigation and radio safety compliance is non-negotiable for commercial vessels navigating the busy sealanes of the United Arab Emirates. Whether your ship is berthing in Dubai, Fujairah, Jebel Ali, Sharjah, Abu Dhabi, or Ras Al Khaimah, equipment breakdowns can lead to immediate Port State Control (PSC) detention, insurance invalidation, or sailing delays. Seanav Marine maintains dedicated marine electronics workshops and mobile technical teams to troubleshoot, repair, calibrate, and reprogram AIS systems around the clock.
Our engineers are equipped with calibrated RF spectrum analyzers, NMEA protocol sniffers, signal generators, beacon test receivers, and genuine OEM parts to resolve complex faults on the first attendance.
Supported Manufacturers & Models
Furuno FA-150 / FA-170, JRC JHS-182 / JHS-183, Sailor 6280 / 6281, Samyung SI-30, Kongsberg Seatex AIS, em-trak Class A.
24/7 Port & Anchorage Attendance
Fast mobilization across Fujairah Anchorage (FOA), Port of Fujairah, Jebel Ali, Dubai Maritime City, Khor Fakkan, Hamriyah, and Khalifa Port.
Programming & Reprogramming
MMSI programming, vessel flag changes, IMO updates, call sign changes, static data updates, and firmware configuration.
OEM Spare Parts & Diagnostics
Stocked circuit boards, power supplies, magnetrons, sensors, battery packs, and cables available for immediate dispatch.
Class A AIS MMSI & Flag Change Reprogramming at Fujairah Anchorage
Reported Fault: Vessel transferred flag from Panama to Liberia; required urgent MMSI, call sign, and vessel name update prior to sailing.
Diagnosis: Transponder locked in administrator password mode; static vessel data locked to previous Panama identity.
Work Performed: Engineer boarded via launch boat. Performed authorized OEM factory software unlock, reprogrammed 9-digit MMSI, updated new Liberian call sign, vessel dimensions, GPS antenna offsets, and IMO number.
Testing & Verification: Conducted live AIS RF transmission test. Verified correct AIS static & dynamic data broadcast on local port VTS and pilot portable unit (PPU) via pilot plug interface.
Result: Complete flag change reprogramming finalized in 2.5 hours; class endorsement report provided to Master.
Request NAVCOM Engineer Attendance & Quotation
Submit vessel particulars, equipment make/model, and fault symptoms. Technical superintendent dispatch coordinates engineer attendance with port agents 24/7.
Major Ports: Fujairah Port • Fujairah Anchorage (24/7) • Jebel Ali Port • Dubai Maritime City • Khor Fakkan • Abu Dhabi & Musaffah • Sharjah & Hamriyah • Ras Al Khaimah
Equipment Services: AIS Programming • Radar Repair • GMDSS Service • ECDIS Diagnostics • VDR APT • Gyrocompass Overhaul • Marine Radio (VHF/MF/HF) • EPIRB Programming • Inmarsat-C Service
High VSWR Alarm & Transmitter Malfunction Diagnostics
Beyond standard MMSI and static data programming, Seanav Marine resolves persistent operational AIS alarms. A high VSWR (Voltage Standing Wave Ratio) alarm indicates severe RF power reflection, typically caused by water ingress inside the VHF antenna coax cable, damaged N-connectors, or a corroded whip antenna element. We perform line sweeping, measure forward/reflected RF wattage, and resolve TX malfunction errors that would otherwise prevent vessel sailing clearance.
Internal GPS Receiver & External Sensor Input Faults
If an AIS transponder displays “No GPS Position” or “Heading Sensor Lost”, it triggers an audible bridge alarm and degrades target transmission reliability. Our engineers inspect active GPS antenna feed voltages, replace low-noise amplifier (LNA) modules, and recalibrate NMEA 0183 heading telegrams ($HEHDT) from the vessel gyrocompass.