[BC] GPS

[Alan Alsobrook]

Cowboy wrote:
>  The further out you go, the more accurate, and the more expensive
>  the approximation will be, but "good enough" for most purposes.
>  It's still limited to the bearing display resolution of the GPS, which I've yet
>  to see a consumer grade better than 1/2 degree even though most 
>  can resolve mush more accurately internally.

If you need to get a bit better accuracy on your bearing display (as 
long as I have the dead on target route line, I really don't need to) 
you can switch your bearing from "Deg" to "Mils" (at least on the GPS 
V). Since their are 6400 Mils in a circle, as compared to 360 Deg, it 
give you a much narrower beam for your radial. I just checked it this 
afternoon at 27.8 miles out from a point the width of a Mil came up to 
about 145'.  You could walk about half a mile to get a deg tick at that 
distance.

Conversion formulas are here, 
http://home.online.no/~sigurdhu/Deg_formats.htm

-- 
Alan Alsobrook CSRE AMD CBNT
St. Augustine Fl. 32086 904-829-8885
aalso at Bellsouth.net