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Old 08-03-2015, 16:56   #1
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Boat: Jonmeri 40
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Broadband radar - autopilot interference

I think I've got this right but would like to confirm before I start putting the cabling in place:

I am installing B&G broadband 4G radar. The best place for the RI10 interface box is right under the existing Simrad AC42 autopilot computer (which is next to the NEP-2 ethernet box). The radar cable run from the mast through the bilge has good separation from any potential sources of interference, but the last 2 feet will run along the source and drive power wires to the AC42. Ethernet cables to two Zeus Touch 8 displays will also run through this 2-foot-long conduit.

The autopilot uses a higher-power T2 ram, not the lower power drive that usually goes with the AC42.

I understand that one beauty of broadband radar is that it shouldn't mess up the other components here as pulse radar would. But is there a risk that the autopilot power wires will mess up the radar and/or ethernet? The various installation manuals don't say anything about this. The RI10 mounting instructions say it "must be located where it can be easily connected" to power/network/ethernet and that's exactly what I'm doing.

Thank you in advance for your thoughtful feedback.

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Old 08-03-2015, 18:12   #2
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Join Date: Jul 2014
Location: On the boat
Boat: Jonmeri 40
Posts: 126
Re: Broadband radar - autopilot interference

Well, maybe this post will only provide an opportunity to discuss when real world experience differs from the manufacturer's technical support advice. Simrad in AUS tells me I should be just fine running this cabling along the AP power supply wires.

So here we go ...
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autopilot, broadband, enc, interference, radar

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