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Radar · ECDIS · Gyro · Autopilot
Bridge Navigation
Furuno, JRC, Sperry, Raytheon Anschütz. Magnetron weak echo, ECDIS freezes, gyro alignment, autopilot rudder hunt.
Service available at all US ports — 24/7 worldwide. Our next available technician contacts you within 1 hour.
Symptom checklist
What we hear from the bridge.
- ›Furuno FAR-2228 weak echo, magnetron current below 1.5 mA
- ›JRC JAN-9201 ECDIS frozen during ENC update
- ›Sperry NaviGat 4000 gyro heading offset 3° from GPS COG
- ›Autopilot rudder hunting ±2° on calm sea
- ›AIS Class A intermittent target loss
- ›Echo sounder ghost echoes under 20 m
Likely root causes
Where the fault usually lives.
- ›Magnetron end-of-life after 3000+ hours
- ›ECDIS HDD bad sectors or RAM ECC errors
- ›Gyro support gimbal bearing wear
- ›Salt corrosion on AIS antenna N-connector
Equipment we bring
Calibrated test equipment, class-acceptable reports.
- Bird 4304A through-line wattmeter & 50 Ω dummy load
- Anritsu MS2720T spectrum analyser
- Furuno FSV & JRC service terminal
- Actisense NGT-1 NMEA protocol analyser
Reports compatible with DNV · BV · ABS · Lloyd's · TL · RINA · ClassNK · IRS.
Often needed together
Parts most often requested with this service.
- magnetrons
- ecdis spares
- gyro bearings
- ais antennas
FAQ
Common questions for this system.
- Which bridge equipment makers do you service?
- Furuno FAR-2xx7 and FAR-3xx0 radars, FR-21x5 series, JRC JAN-9201/7201 ECDIS, JMA-3300/5300/9100 radars, Sperry NaviGat 4000 and Standard 30 MF gyros, Raytheon Anschutz NP-2025/NP-5500 autopilots, Furuno FA-170 and JRC JHS-183 AIS Class A. We resolve NMEA 0183, IEC 61162-1/-2 talker-listener mismatches and NMEA 2000 backbone faults using a Actisense NMEA Reader and a USB-to-RS422 line monitor.
- How long does a typical bridge navigation attendance take?
- A single-symptom call (one radar tx not radiating, one ECDIS frozen, one autopilot drift) is two to four hours alongside. A full bridge integration check after a yard period or a master-gyro swap runs eight to twelve hours, including sea-trial heading verification on a Pelorus compared to the magnetic compass. We bring a Furuno service dongle, JRC maintenance laptop image and a spare set of magnetrons in common 9 GHz ratings on request.
- Can you attend the annual class survey on the bridge equipment with the surveyor?
- Yes. We routinely attend with DNV, BV, ABS, Lloyd's Register, ClassNK, RINA, TL and IRS surveyors for the annual navigation and radio item. We pre-flight radar performance monitor checks, ECDIS chart corrections vs. NM week, gyro error logbook entries and autopilot self-test before the surveyor steps on the bridge, so the witnessing itself takes about ninety minutes and the certificate is endorsed the same call.
Have a vessel calling?
Three quick questions — port, when, contact. Our next available technician will contact you within 1 hour.