Another one of those days

Griffin Marine

Well-Known Member
Joined
1 May 2013
Messages
220
Location
East Cowes Marina
www.griffmarineservices.co.uk
Working in Italy last week quite spongy rolling seas on a boat with stabilizers bloody things stop as soon as we put radar on arghhhh. Rolling around quite a lot slows down can't see the problem plod home.
Did some research back home and they conk out or go crazy with RFI any on here had a similar problem ? What was the outcome /solution make is Wesmar and electronics Raymarine
Thanks Tim
 
Last edited:
unusual - I've had to solve interference problems on a variety of machines big and small over the years. Simplistically there is two causes either magnetic field interference coupling into the cable creating a current ( DC motors cause this) or radio interference coupling into the wires (can be very difficult to block)
This usually cures it; trace all the power cables supplying the radar/raymarine kit and the stabilisers/stab computer. make sure that they both a have a really good and separate -ve connection back to the battery negative/ bonding point on the boat. If possible run all the cable from the radar as far from the stab stuff as possible - on opposite sides of the boat if poss (probably not but any separation will help). Anything you can do on the +ve side will also help too.
Raymarine kit often have ferrite rings built into the supplied harnesses to supress RFI from their kit, try and find out if these have been removed when cables have been shortened/adapted.
 
unusual - I've had to solve interference problems on a variety of machines big and small over the years. Simplistically there is two causes either magnetic field interference coupling into the cable creating a current ( DC motors cause this) or radio interference coupling into the wires (can be very difficult to block)
This usually cures it; trace all the power cables supplying the radar/raymarine kit and the stabilisers/stab computer. make sure that they both a have a really good and separate -ve connection back to the battery negative/ bonding point on the boat. If possible run all the cable from the radar as far from the stab stuff as possible - on opposite sides of the boat if poss (probably not but any separation will help). Anything you can do on the +ve side will also help too.
Raymarine kit often have ferrite rings built into the supplied harnesses to supress RFI from their kit, try and find out if these have been removed when cables have been shortened/adapted.

Thanks for that will tell the boss cheers
Tim
 
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