No data at >1 mile
Radar sweep is displayed, receives perfect signal up to about 0.5 miles but at >1 mile only "grass" even when close to land.
Boating - Furuno - Navnet 1834C/NT vx2 Radar C Map Nt
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Answers & Comments
Either a weak magnetron, water in wave guide or most likely radar settings are not right.
You have an 1834C, so a 4KW dome, right?
Radar antenna should be set to type "B" in Radar Set-Up menu
Access this menu by holding the Menu button during turn on and then choosing Installation Mode, allowing access to Installation Set Up Menu, where the Radar Set Up Menu is located. Be sure to do Optimize Radar, while you are in there.
Learn to use Sea Clutter and turn off AC Auto Tune.
Good Luck!
John 847-746-0100