[aprssig] APRS LAT/LONG standards

Gerry Creager N5JXS gerry.creager at tamu.edu
Sun May 29 22:31:57 EDT 2005

Tapio Sokura wrote:
> An example on the calculations is useful in many cases though, 
> especially on more complex things like converting coordinates from one 
> system of coordinates to another. Numerous are the occasions I have 
> banged my head onto a wall when the only mistake in a formula is one 
> misplaced digit or a multiplication turned into a division. It's easier 
> to catch these when you have a reference calculation with all middle 
> values to compare to. (I'm not a geodetic by profession so I guess I can 
> confess here that I really don't understand all the math involved in the 
> complicated transformations, but I can duplicate formulas and examples..)

Depends on whether you hold strongly  to three- or 7-parameter 
transformations, and whether tectonic motion enters into your world... ;-)

>> grade school math...been a while, but I think it  was 4th or 5th grade 
>> when one learns about converting fractions to  decimal.
> But you still seem to cling onto your fractions in the stock market etc 
> :-)  Ok, enough intercontinental joking..

No we don't!
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University	
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
Page: 979.228.0173
Office: 903A Eller Bldg, TAMU, College Station, TX 77843

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