Hello,
Recently my 1712 radar started misbehaving. It works well for anywhere between 2-30 minutes then seems to lose the heading pulse (if that's the right term). It continues to sweep, but the return gets painted as a circle around the boat. If it's a large return then the line is thick, a small return is a thin line. The magnetron is still turning, you can see the sweep updating. And I get an error code on the screen, "HD-SIG-MISS".
I have replaced the cable from the dome to the display, I found some damage to the insulation on the cable. When that didn't help, I found a replacement reed relay on a vendor's shelf and tried that. Still same problem.
I know it's an old radar but I really like it and there's only about 1200 hours on it. Any other things I should try? Maybe the MIC? I have enough electrical repair experience to handle simpler repairs.
I am going to start another thread about upgrading so please don't suggest that here, thanks.
Recently my 1712 radar started misbehaving. It works well for anywhere between 2-30 minutes then seems to lose the heading pulse (if that's the right term). It continues to sweep, but the return gets painted as a circle around the boat. If it's a large return then the line is thick, a small return is a thin line. The magnetron is still turning, you can see the sweep updating. And I get an error code on the screen, "HD-SIG-MISS".
I have replaced the cable from the dome to the display, I found some damage to the insulation on the cable. When that didn't help, I found a replacement reed relay on a vendor's shelf and tried that. Still same problem.
I know it's an old radar but I really like it and there's only about 1200 hours on it. Any other things I should try? Maybe the MIC? I have enough electrical repair experience to handle simpler repairs.
I am going to start another thread about upgrading so please don't suggest that here, thanks.
