A-3 / IRN-1 /S-705LP / CBM-G22

Crew members, engineers, and operators aboard ships depend on marine radar systems for safe navigation and collision avoidance. The A-3 / IRN-1 / S-705LP / CBM-G22 models from Hyundai Welding Co., Ltd. (Pohang) ensure reliable operation across X-Band and S-Band frequencies, meeting IMO SOLAS requirements. Common issues include magnetron failure after 5,000 to 8,000 hours of use, antenna bearing lubrication needed every year, display backlight failures, heading marker drifts, and water ingress in the waveguide. Regular maintenance such as weekly performance tests and annual inspections are critical for optimal system health. Spare parts, particularly magnetrons, should be kept on board to minimize downtime; replacements can take 1-3 weeks from Hyundai Welding Co., Ltd. (Pohang).