"I had a similar problem, where only ONE of my two i70 displays was not showing AIS data. Turns out I needed to turn "variation mode" ON (system setup) ... leaving the variation at zero. Et voila, up come the AIS targets, even when the boat…"
"Thanks indeed. Problem solved. The person who made the first instalation did not conected the MFD out to the AIS input. That was the reason why there was no signal at the LOW baud 4800 to the VHF. Today I connected all the wires and get…"
"Welcome to the Raymarine Technical Forum Don,
Raymarine's US Technical Support Team and Product Repair Center may may also be contacted M-F (0815-1700) Eastern US Time at 603.324.7900. Mondays and Tuesdays are Raymarine Product…"
"Welcome to the Raymarine Technical Forum Mick,
The configuration setting responsible to addressing the clutter within the upper portion of the water column is referred to as Noise Filter (MENU->SENSITIVITY SETTING->NOISE FILTER. The…"