Hi Bill, the Raymarine AIS installation manual states: The AIS700 includes a dedicated grounding point to reduce potential damage caused by near
lightning strikes. The Grounding point should be connected to your vessel’s RF ground. Do NOT connect to any point
that is connected to your vessel’s 0V Negative battery terminal.--
The VHF has the same recommendation.
So, in your opinion, is it better to ground these instruments to the RF (SSB), or to the galvanic bond system?
As always, thank you for your input
Adam Body "Flora" SM128 Annee 1994