What to do if Furuno FAR-28 Marine Radar picture not updated or picture freeze-up?
If the picture is not updated or is frozen: 1. Check the connection of signal cables. 2. Replace the SPU board. 3. Turn the radar off and on.
What to do if Furuno FAR-28 Marine Radar range changed but radar picture does not change?
If the range is changed but the radar picture does not change, try hitting the RANGE [+] and [-] keys (or RANGE box) several times. If that does not work, turn the power off and on again to see if the problem might be video freeze up. If the issue persists with a keyboard-type control unit, replacement of the keypad may be required.
What to do if Furuno Marine Radar picture not updated or picture freeze?
If the Furuno Marine Radar picture is not updating or freezes, turn the power off and on again to restore normal operation.
What to do if Furuno FAR-28 Marine Radar range changed but radar picture not changing?
If the range is changed but the radar picture is not changing, try pressing the RANGE [+] and [-] keys several times. If that doesn't work, try turning the radar off and on again. If the issue persists with a keyboard-type control unit, replacement of the keypad may be required. If that does not resolve the issue, the SPU board may need to be replaced.
Why Furuno FAR-28 Marine Radar marks, indications and noise appear but no echo?
If marks, indications, and noise appear but there is no echo, the Tx high voltage protection circuit may have activated. Reset the power to restore normal operation.
Why Furuno Marine Radar is properly tuned but poor sensitivity?
If the radar is properly tuned but the sensitivity is poor, consider the following possibilities: 1. The magnetron may be deteriorated, so check the magnetron current while transmitting on the 48 nm range. If the current is below normal, replace the magnetron. 2. The MIC may be detuned, so check the MIC detecting current. If it is below the normal value, the MIC must be tuned. 3. There may be dirt on the radiator face, so clean the radiator surface. 4. There may be water ingress to the waveguide or other feeder line, so remove the water from the feeder line. 5. The second trace echo rejection may be ON, so disable the second-trace echo rejector.
What to do if Furuno FAR-28 Marine Radar buttons on trackball module operated but no response?
If the buttons on the trackball module are operated but there is no response, replace the trackball module.
What to do if Furuno FAR-28 Marine Radar adjusted GAIN with A/C SEA set at minimum. Marks and indications appear but no noise or echo?
If, with GAIN adjusted and A/C SEA set to minimum, marks and indications appear but there is no noise or echo: 1. Replace the IF amplifier. 2. Check the continuity and isolation of the coaxial cable, disconnecting the plug and lugs at both ends before checking with an ohmmeter. 3. Check the video coax line for a secure connection. If the connection is good, replace the SPU board.
What to do if Furuno FAR-28 Marine Radar power turned on but radar does not operate at all?
If the power is turned on but the radar does not operate at all: 1. Replace the blown fuse. 2. Correct the wiring and input voltage. 3. Replace the power supply board.
What to do if Furuno FAR-28 Marine Radar antenna not rotating?
If the antenna is not rotating: 1. Replace the antenna drive mechanism. 2. Press the relay reset button.
General| Range Scales | 0.125 to 96 nautical miles |
|---|---|
| Range | 96 nautical miles |
| Transmitter Output Power | 25 kW |
| Power Output | 25 kW |
| Power Supply | 24 V DC |
| IMO Compliance | Yes |
| Rotation Speed | 24 or 48 rpm |
| Antenna Type | Slot array |
| Antenna Length | 6 ft (1.8 m), 8 ft (2.4 m), 12 ft (3.6 m) |
General warnings, copyright, and manual usage guidelines.
Identifies situations that could cause death or serious injury if not avoided.
Highlights potentially hazardous situations that could result in death or serious injury.
Step-by-step guide to powering on the radar system and understanding the warm-up process.
Details the functions and types of control units available for operating the radar.
Guide on using the gain control to adjust receiver sensitivity for optimal radar picture clarity.
Important warnings and cautions regarding the reliance on and use of the Target Tracking system.
Details how to enable and configure automatic acquisition of radar targets.
Describes the collision alarm function, its settings, and how it helps prevent collisions.
Outlines essential regular checks and maintenance tasks for optimal radar performance.
Provides common troubleshooting procedures for restoring normal radar operation.
Guides qualified personnel on diagnosing and resolving complex hardware and software issues.
Details the types, beam width, sidelobe attenuation, and polarization of antenna units.
Lists specifications for the display units, including screen size, resolution, and effective radar diameter.
Details the power supply requirements and ratings for various radar components.
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