1943c radar noise issue

Dorado30

New member
RDP-139 MFD with XN12A-RSB-0070-059 radar antenna

We bought a boat with a Furuno 1943 Navnet system. The boat screen got wet and went black, I replaced the unit with one of the same model number (RDP-139) so far everything is working except for the radar.

I read the the owners manual and set the Antenna to “G” for the radar I have. I went a 1/2 mile offshore and ran the radar tuning and the video tuning.

Still all I get form the radar is noise. I have the gain set at 50% and everything else turned off. It will occasionally pick up a channel marker with a long trail behind it but won’t even pick up the shore line. Just noise.

At this point I’m not sure if the radar is bad or if it’s just a settings issue. I appreciate any help.


https://imgur.com/a/cfrmv2i
 
I would recommend you contact tech support while at the boat. They can talk you through a quick tune up and help determine if you have a problem with the radar.
 
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