D
Diane CoxSep 23, 2025
Why data and marks not displayed in transmit on Furuno Marine Radar?
- CCharles SparksSep 23, 2025
If data and marks are not displayed in transmit on your Furuno Marine Radar, replace the SPU board.
To Next PageTo Next PageWhy data and marks not displayed in transmit on Furuno Marine Radar?
If data and marks are not displayed in transmit on your Furuno Marine Radar, replace the SPU board.
Why marks, indications and noise appear but no echo on Furuno Marine Radar?
If marks, indications, and noise appear but no echo (and the transmission leak representing your ship position is absent) on your Furuno Marine Radar, check the magnetron current. If the issue persists, replace the modulator board or the SPU board.
What to do if tuning is correctly adjusted, but sensitivity is poor on Furuno Marine Radar?
If tuning is correctly adjusted but sensitivity is poor on your Furuno Marine Radar, replace the magnetron and contact your dealer.
Why Furuno 1935DISP Marine Radar power cannot be turned on?
If the power cannot be turned on for your Furuno Marine Radar, the issue may be with the mains voltage/polarity. Correct the wiring and input voltage. Alternatively, the power supply board may need to be replaced.
Why is my Furuno Marine Radar power not turning on?
If your Furuno Marine Radar is not powering on, check the following: a blown fuse, the power connector to ensure it's fastened, the power cable connector for corrosion, the power cable for damage, and the battery for correct voltage output.
What to do if Furuno 1935DISP Marine Radar range is changed but radar picture does not change?
If you change the range on your Furuno Marine Radar and the picture doesn't change, try operating the RANGE key again. If that doesn't work and you cannot operate the RANGE key, replace the keypad. Alternatively, the SPU board may need replacing, or try turning the radar off and on.
What to do if Furuno 1935DISP Marine Radar picture not updated or picture freeze-up?
If your Furuno Marine Radar picture isn't updating or the picture freezes, check that the signal cables are fastened. If that doesn't solve the issue, the SPU board may need replacement. You can also try turning the radar off and on.
How to fix poor discrimination in range because of many echoes from the waves on Furuno 1935DISP?
To improve discrimination in range on your Furuno Marine Radar when there are many echoes from waves, adjust the A/C SEA control.
Why Furuno 1935DISP is correctly tuned but sensitivity is poor?
If your Furuno Marine Radar is correctly tuned but the sensitivity is poor, turn off the [2nd Echo Rejector] from the [Echo] menu. Also, clean the radiator. Check the magnetron current with the radar transmitting on 48 nm range and replace the magnetron if the current is below normal. Check MIC detecting current, if MIC detecting current is below normal value, MIC may have become detuned.
Why is my Furuno 1935DISP Marine Radar target not tracked correctly because of sea clutter?
If a target is not tracked correctly on your Furuno Marine Radar due to sea clutter, adjust the A/C SEA and A/C RAIN controls.
General| Power Output | 6 kW |
|---|---|
| Frequency | 9410 MHz ±30 MHz |
| Transmitter Power | 6 kW |
| Operating Temperature | -15°C to +55°C |
| Display Size | 10.4 inches |
| Display Type | Color LCD |
| Screen Size | 10.4 inches |
| Resolution | 640 x 480 pixels |
| Range | 72 nautical miles |
| Interface | NMEA0183 |
| Power Supply | 24 V DC |
| Range Scales | 0.25 to 72 nautical miles |
