[aprssig] APRS LAT/LONG standards

Keith Kotch kkotch at earthlink.net
Sun May 29 18:57:16 EDT 2005

I do beg your pardon.  I appreciate knowing the fundamental principle AND
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 explain
the fundamentals enough.

Bob, what you've told me in your message IS a formula to me. It also helps
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 the
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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