[aprssig] APRS LAT/LONG standards

Robert Bruninga bruninga at usna.edu
Mon May 30 09:39:55 EDT 2005

I appologize, because I take some questions posted to the
SIG as retorical and good for making a tangential point 
about some other topic, forgetting that the person that
posted it will take it as an actual response to his question.

Sorry, keith.
my message was very poorly worded.  Bob

>>> kkotch at earthlink.net 05/29/05 6:57 PM >>>
I do beg your pardon.  I appreciate knowing the fundamental principle
the mathematical formula.  One helps me learn and understand the other.

As a student (I'm always trying to learn) and a PARENT of students, what
pushes my button is educators that only teach shortcuts and don't
the fundamentals enough.

Bob, what you've told me in your message IS a formula to me. It also
me to understand what Tapio gave me and what he gave me helps me to
understand the reasoning behind your method.  I appreciate both. Give me
foundational concept THEN show me the shortcut.

Keith, KF4BXT

-----Original Message-----
From: Robert Bruninga
Subject: Re: [aprssig] APRS LAT/LONG standards

> Would someone ...publish the math formulas 
> for converting lat/lon coordinates ?...

As an educator, this pushes my button.  Dont learn
formulas, learn to think about what is going on.  Its
a lot less to remember.  The only thing you have to
know is that there are 60 minutes in a degree.

If something is expressed  in minutes, then divide
minutes by 60 to get degrees.  If it is expresed in 
degrees, then multiply the fraction part by 60 to get
minutes.  Same goes for seconds.  Done.


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