Kriton minimum AIS range 40 miles, i.e. when 3.5 hrs from port @ 11.3 kts. apparent speed. (11.3 is listed, and calcs out to 20:00) Ensenada ETA: 1900 at vesseltracker, 2000 otherwise, PDT timezone AIS signals have been received at 200 miles, with a receiver on an island mountaintop.