Agreed on the slowing/stopping the boat to mark the waypoint. I forgot to
mention that in my original post. I may even circle or move the boat slightly
until I'm comfortable with the spot.
Ditto the logbook. While I don't log position each hour, I may log miles when
entering/leaving harbors, marinas or channels, bridge passages, anchorages,
weather conditions, etc. Makes for good reference for future trips and for
good reading and remembering.
I log engine hours and miles at anchorages, dockages, fuel docks, etc.
Dennis C.
Touche' 35-1 #83
Mandeville, LA
>________________________________
> From: Marek Dziedzic <dziedzi...@hotmail.com>
>To: CnC-List@cnc-list.com
>Sent: Thursday, January 16, 2014 7:52 AM
>Subject: Re: Stus-List Setting GPS Waypoints (long)
>
>
>
>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)
> ------------------------------
>
>
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