FELCOM20
The Furuno FELCOM20 is a compact X‑band solid‑state marine radar designed for navigation and collision avoidance, featuring integrated ARPA and AIS target tracking on a high‑resolution display.
Inspector Detail
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Common issues
- Antenna unit motor/bearing wear causing slow, noisy, or intermittent rotation
- Radome or antenna radiator condensation/moisture ingress affecting transmit/receive performance
- Antenna cable or rotary joint connector corrosion at the mast-head unit
- Display unit dimming, pixel degradation, or touchscreen response issues over time
- ARPA/AIS target tracking errors traced to a faulty heading or position sensor input rather than the radar itself
- Cable gland or feed seal degradation allowing water ingress on the antenna unit
Inspection checklist
- Functional check of transmit, tuning, and picture quality on each range scale
- Visual check of antenna unit mounting, radome condition, and cable glands for water ingress
- Check ARPA target acquisition and AIS overlay against known targets
- Confirm heading and position sensor inputs are correctly feeding the radar
- Check the built-in performance monitor/test result if fitted
- Verify display brightness, alarm functions, and guard zone settings operate correctly
- Check power supply unit and connections for corrosion or loose terminals
- Confirm software/firmware version and note any outstanding manufacturer service bulletins
Service intervals
| Functional/performance check | before departure and per bridge equipment routine checks |
| Antenna unit inspection (mounting, radome, glands) | annually, or at each mast access opportunity |
| Full performance test against IMO radar performance standards | at annual survey, per flag/class requirement |
Critical spares
- Antenna unit drive/motor assembly, if field-replaceable on this model
- Display unit fuses and power supply components
- Cable glands and connectors for the antenna cable run
- Rotary joint, if independently serviceable on this model
Safety
- Isolate power before opening the antenna unit or transceiver enclosure - solid-state units still carry live RF and electrical hazards
- Working aloft on the mast to service the antenna unit requires fall protection and a permit
- A radar logged as defective must be reported per SOLAS navigation equipment requirements before departure, with an interim navigational safety plan
Class survey
Class checks that the radar is operational and its performance test/records are current at each annual or periodical survey; a radar logged as defective without a documented interim navigational safety plan draws attention.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Service & Maintenance
Annual inspection per SOLAS/Flag State. Software updates per manufacturer advisory. Sensor calibration quarterly. Backup system test monthly.
Suppliers & Spare Parts
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DNV type approval
Verified against the DNV Approval Finder — the certificate below is issued by DNV, not by us.
- Certificate
- MEDB00008BV
- Approved as
- Inmarsat-C SES
- Certificate holder
- Furuno Electric Co., Ltd. (Japan)
- Valid until
- 2030-03-27