Why Furuno FAR-1518 Marine Radar shows marks and noise but no echo and no transmission leak?
- Mmelanie31Aug 31, 2025
If marks, indications, and noise appear on your Furuno Marine Radar but there is no echo, and the transmission leak representing your own ship's position is absent, it could be due to several reasons. The TX high voltage protection circuit may have activated (reset power to restore normal operation), the magnetron may be faulty (check magnetron current and replace if necessary), the modulator board may need replacement, or the SPU board may be the issue (replace SPU board).