[aprssig] Lat. / Long. Expressions
oh2kku at iki.fi
Sun Sep 9 19:51:10 CDT 2007
Andy Gonzales wrote:
> As to voice 37.3628° Can be spoken three-seven, decimal, three six two
> eight, degrees or three seven, degrees, two one, minutes, four five,
> decimal, niner six, secs. Which is easier and clearer ?
I actually find speaking out degrees and minutes clearer, because you
only have 2 digits in a row before a "fill-in word" of some sort. Like
"one two degrees three four decimal five six minutes north". Ok, when
you are over 100 W/E, you have three digits, but you have that whichever
format (d/dm/dms) you use.
Anyway degrees and minutes is the closest thing to a standard form,
especially in maritime use. I guess the recently risen usage of decimal
degrees is mostly due to computerized systems that don't bother to
convert to more user friendly format. The charts also usually, at least
here and including topographic maps, have degrees and minutes printed on
the edges, not decimal degrees or dms. dms is traditionally used in
aviation, but not much elsewhere.
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