Koden radar, echosounder and plotter service
NAVION supplies, installs, commissions and repairs Koden radars, echosounders, GPS and DGPS plotters and net sondes on vessels calling at ports in Busan, Vladivostok and China. Work covers fault diagnosis, magnetron and transducer replacement, antenna and cable renewal, and interfacing to the rest of the bridge. Engineers attend in Gamcheon, at the Yeongdo repair yards and at Busan New Port, and travel to other yards on request.
Message us on TelegramKoden hardware is common on the fishing fleet and mid-size commercial vessels calling at Busan, and most of what goes wrong with it is predictable. Radar scanners that have run through several seasons of salt spray and freezing spray lose transmit power as the magnetron ages, so targets fade at range long before the display shows a fault. Echosounder readings go soft when a transducer face is fouled, waterlogged or when the cable run has taken water into a junction box. Plotter positions jump or drop out when the GPS or DGPS antenna cable has corroded at the connector. NAVION supplies, installs, commissions and repairs Koden radars, echosounders, GPS and DGPS plotters and net sondes on vessels alongside in Busan port. We source equipment and spares through legitimate supply channels and we do the installation and service work ourselves.
What the job includes
- Radar magnetron replacement and retune
- Scanner mechanical overhaul and bearing check
- Echosounder fault diagnosis
- Transducer replacement and calibration
- GPS and DGPS antenna and cable renewal
- Net sonde check and setup
- NMEA 0183 and NMEA 2000 interfacing
- Integration with existing bridge systems
- New equipment supply and installation
- Commissioning, handover and spares advice
Timing
- Fault diagnosis, one unit
- typically 2-4 hours
- Radar magnetron replacement and tuning
- typically 4-8 hours
- Plotter or DGPS antenna and cable renewal
- typically 4-8 hours
- New unit install and bridge integration
- typically 1-2 days
- Hull transducer replacement
- yard period, vessel out of water
What we need from the vessel
- Access to the bridge, the scanner or mast, and the sounder space, with the equipment released from operational use for the duration
- Ship's power available on the relevant breakers, and permission to isolate and lock out the radar transmitter during scanner work
- Model and serial numbers sent in advance so spares can be checked or ordered before arrival
- An officer or engineer familiar with how the equipment is used, present for fault description and for handover
- Permit-to-work and gas-free certification where a transducer or cable run passes through a tank, void or enclosed space
- Mast work stopped or safe access arranged if cargo, bunkering or fishing gear operations conflict
Documents issued
- Service report listing units worked on, model and serial numbers, faults found and parts fitted
- Radar performance record after magnetron replacement: tuning, target picture at close and long range
- Echosounder settings sheet: gain, TVG, pulse length, sound speed, draft and keel offset as left
- NMEA 0183 and NMEA 2000 interface record showing talkers, listeners, sentences and baud rates
- List of parts consumed and recommended spares to carry aboard
Frequently asked
Do you supply and service Koden equipment?
Yes. We supply Koden equipment and spares, carry out installation and commissioning, and service and repair equipment already on board.
Can you replace a radar magnetron while we are alongside?
Usually yes, if the tube is in stock or can be ordered in time and the scanner is safe to open. The electrical work and ageing procedure typically take a few hours; the limiting factors are mast access, weather and whether the scanner can be stopped and locked out during cargo or fishing operations.
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Read moreKoden equipment fault or supply request in Busan
Send the model numbers, the fault symptoms and your ETA and berth area. We will confirm what we can carry aboard, what needs ordering, and how much of the job fits your port call.