JMA-5312
JRC JMA-5312 is a marine navigation radar system listed in the supplied equipment record. It is normally installed on the bridge with scanner equipment mounted above deck and display, processor and control units in the navigation console. Its primary purpose is to detect and track vessels, coastlines, navigation marks and weather returns for collision avoidance and navigation. Radar differs from AIS because it independently detects reflecting targets and does not rely on other vessels transmitting identity data. The model designation identifies a particular manufacturer configuration, but the supplied record does not define every hardware, material, control, or certification difference to adjacent models. For exact ratings, dimensions, settings, materials, connection details, and variant-specific limits, refer to the manufacturer documentation for the exact figure.
Components & Design
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Technical Data
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Common failures & inspection points
Service & Maintenance
Inspect scanner, pedestal, waveguide or RF cabling, seals, display and power supplies. Verify heading and speed inputs, tuning, range performance and target tracking using approved checks. Examine event logs and compare radar presentation with known targets. Microwave work and transmitter adjustments require qualified service procedures.
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