Raymarine forum

I am completely revamping my sailboat from Patherfinder/ST gear to eS97, a125, STng, etc. The power/data cables for the MFDs have shield wires, which the manual says to hook to the RF ground or -12v. My RF ground is isolated from -12v to eliminate DC loops. What is the internal connection of the shield? simple VOM measurements suggest that they are capacitively coupled.
Craig
S/V Sequoia

Welcome to the Raymarine Forum Craig,

Please click here to view a FAQ addressing this subject. When installed in the manner specified within the referenced FAQ, the Raymarine electronics will not result in a ground loop.