Quote:
Originally Posted by High Wire
AIS data by design is NOT REAL TIME!!! With transmission periods of 1 to 6 minutes apart, the target(s) can move a long way between updates.
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Yep, following some folks on a night trip revealed that. Seemed more like 30 seconds, but I was regularly 'catching up' to the AIS marker for the boat in front of me. Radar and visual revealed otherwise. Likewise for all the other boat traffic and nav markers out there.
I could understand where in reduced visibility this would be a problem. Esp with regard to towing setups.