Why is the antenna not rotating on my Furuno Marine Radar?
If the antenna is not rotating on your Furuno Marine Radar, it could be due to the antenna drive mechanism or the MTR-DRV board. Consider replacing the antenna drive mechanism or the MTR-DRV board.
Why can't I operate my Furuno FAR-2238 from on-screen boxes?
If you cannot operate your Furuno Marine Radar from the on-screen boxes, the issue may be with the MAIN board inside the Processor unit. Consider replacing the MAIN board.
How to display six PI lines on Furuno Marine Radar?
If your Furuno Marine Radar is only displaying two PI lines when you want six, it may be due to an incorrect setting of the PI line interval or an inappropriate setting for the number of PI lines to display. Adjust the PI line interval and check the menu setting for the number of PI lines.
How to fix Furuno FAR-2238 Marine Radar if it cannot turn on?
If your Furuno Marine Radar cannot turn on, the possible causes are: a blown fuse, issues with the mains voltage/polarity, or a problem with the power supply board (PWR1 and/or PWR2) inside the Processor unit. To resolve this: * Replace the blown fuse. * Correct the wiring and input voltage. * Replace the faulty power supply board.
Why is the picture orientation incorrect on my Furuno FAR-2238?
If the picture orientation is incorrect on your Furuno Marine Radar, it could be due to the Rotary Encoder inside the antenna unit, the SPU board inside the antenna unit, or the MTR-DRV board inside the antenna unit. If the message 'NO HEADLINE SIGNAL' appears, check the heading line signal cable and board connections. If there are no problems with cables or connections, replace the faulty board.
What to do if Furuno FAR-2238 power is on but nothing appears on the monitor?
If the power is on but nothing appears on the monitor of your Furuno Marine Radar, the brilliance might be too low. Adjust the brilliance.
Why do marks and indications appear but no noise or echo on Furuno Marine Radar?
If you adjust the GAIN with A/C SEA set at minimum and marks and indications appear but there is no noise or echo on your Furuno Marine Radar, it could be due to the IF amplifier or the signal cable between the antenna and processor unit. Consider replacing the IF amplifier or checking the continuity and isolation of the coaxial cable, disconnecting the plug and lugs at both ends before checking with an ohmmeter.
Why does my Furuno FAR-2238 Marine Radar show marks, indications, and noise but no echo?
If your Furuno Marine Radar shows marks, indications, and noise but no echo (and the transmission leak representing your own ship position is absent), possible causes include activation of the TX high voltage protection circuit, a faulty magnetron, or issues with the MD or SPU boards inside the antenna. To troubleshoot: 1. Reset the power to restore normal operation. 2. Check the magnetron current and replace the magnetron if necessary. 3. Replace the MD board. 4. Replace the SPU board.
How to fix Furuno FAR-2238 when the picture is not updated or frozen?
If the picture on your Furuno Marine Radar is not updating or is frozen, it could be due to the Rotary Encoder inside the antenna unit, the SPU board inside the antenna, or a video freeze-up. Try checking the connection of signal cables, replacing the SPU board, or turning the radar off and then on again.
Why does my Furuno FAR-2238 have poor sensitivity after tuning?
If your Furuno Marine Radar has poor sensitivity after tuning, it could be due to the second trace echo rejector being on or dirt on the radiator face. Try disabling the second trace echo rejector and cleaning the radiator face.
General| Power Supply | 24 VDC |
|---|---|
| Frequency | 9.41 GHz |
| Range | Up to 96 NM |
| Beamwidth | 1.2° (horizontal) |
| Rotation Speed | 24 RPM |
| Target Tracking | Up to 100 targets |
| Type | Solid-state |
| Antenna Length | 1.2 m |
Precautions, controls, modes, acquisition, and tracking procedures for target tracking.
Configuring CPA/TCPA alarms and setting up acquisition zones for alerts and tracking.
Simulating ship maneuvers to assess collision risks and evaluate evasive actions.
Understanding external factors that influence target tracking accuracy.
Linking radar (TT) and AIS target data for a unified target display.
Recommended routine maintenance tasks for optimal performance and longevity.
Procedures for replacing fuses and information on major parts' life expectancy.
Guidance for resolving common operational problems and restoring normal function.
Running diagnostic tests on major system components to identify hardware or software issues.
Operating environmental ranges and specifications for the performance monitor.
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