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3rd Party App AIS Alarm Query


New Member
Dear All

My question is this; does Navionics or Open CPN's AIS collision avoidance alarm still work outside the perimeters of your paid for charts? For example if you were to sail across the Atlantic and have bought charts for local regions on either side yet have a gap in between, would either of these programs still work? More importantly would the AIS alarms still work? I thank you in advance for your responses.