If I may add to it a bit... When you mark a waypoint and you are able to remain stationary for a few seconds, try making the waypoint using the average from numerous readings (usually the default is 16 or 64). When you capture 16 reading the GPS error is substantially reduced (especially, if you care to be within single metres or tens of feet). The older GPSs read once per second (1Hz); some of the newer ones do that 10 times faster (10 Hz). So you need to be in the same place for, let’s say 20 s.
I am somewhat surprised that so few people mentioned the log book and making records on an hourly basis. I admit not using one here, but I sail on a lake/river, where the furthest you can be from the shore is about 1 km (0.5 nm) and when daysailing, you don’t go out in a dense fog. But I cannot imagine going offshore and not using one. Maybe I am too old. Marek (in Ottawa) ------------------------------ Message: 2 Date: Wed, 15 Jan 2014 13:44:17 -0800 (PST) From: "Dennis C." <capt...@yahoo.com> To: Cn Clist <CnC-List@cnc-list.com> Subject: Stus-List Setting GPS Waypoints (long) Message-ID: <1389822257.90860.yahoomail...@web164803.mail.gq1.yahoo.com> Content-Type: text/plain; charset="iso-8859-1" Anyway, relative to the subject line, ALL the waypoints in my GPS's are OBSERVED, ?That is, I took the boat to the spot where I wanted the waypoint and hit the "Mark" button on the GPS unit. If I'm not comfortable with it, I've been known to swing the boat around and go back and re-mark it. ?I always delete the other one. Dennis C. Touche' 35-1 #83 Mandeville, LA
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