[Rhodes22-list] GPS confusion

Rory Orkin roryorkin at earthlink.net
Wed Apr 11 09:38:54 EDT 2007


There is usually a setting on the GPS to allow the format to be reported back
in a format consistant with the charts.
I guess if he can not figure out the format on his charts , he may need to
engage a navigator . :-)
                                                              R

Joseph Hadzima wrote:
> 
> Here is a snip from another sailing list.  I thought it
> would make good reference for the archives :-)
> 
> happy piloting!
> 
> 
> 
> ----------begin included message:
> 
> OK I must admit I am really confused.
> 
> For the past year I have been learning the ins and outs of
> navigating with a GPS. A while ago I started noticing
> discrepancies between coordinates indicated on charts, what
> my GPS said and what I would find listed as coordinates on
> various sources on the internet.
> 
> After much reading on the internet and in a couple of
> navigation books I have I determined that there are pretty
> much 3 systems in use.
> 
> 1) DD MM' ss" Degrees Minutes Seconds (what I find on
> charts I think)
> 
> 2) DD MM.mmm Degrees Minutes Decimal Minutes (what my GPS
> normally says)
> 
> 3) DD.ddddd Degrees and Decimal Degrees (What I find on
> some websites like NOAA)
> 
> However it is not always easy to tell which is which when
> reading them from a source.
> 
> 
> 
> HADZ (a.k.a. joe)
> 
> "Did you know...that when you walk past a flower, whether it be in
> somebody's garden or on a vacant hillside, the flower will always
> smile at you. The most polite way to respond, I've been told, is
> to cheerfully return the smile."
> --Ron Atchison
> __________________________________________________
> Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
> 
> 

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