Trad Gang

Main Boards => PowWow => Topic started by: Burnsie on July 31, 2013, 01:43:00 PM

Title: Need some GPS Education
Post by: Burnsie on July 31, 2013, 01:43:00 PM
So, I understand degrees, minutes, seconds
(60 minutes per degree and 60 seconds per minute)
If seconds are displayed as a three digit decimal number how do I know how many seconds that is.

ie:  N 40.11.760
    W 88.24.995

How do I read the 760 and the 995??
Title: Re: Need some GPS Education
Post by: GANGGREEN on July 31, 2013, 02:09:00 PM
You can convert them (I'm sure if you google it, you'd find a page that will convert it), or you can tell your GPS unit to calculate it in degree/minute/second form rather than as a decimal.
Title: Re: Need some GPS Education
Post by: DarkTimber on July 31, 2013, 02:22:00 PM
Multiply 0.760 and 0.995 by 60.  So N 40deg 11.760' = N 40deg 11' 46 " (rounded up) and W 88 deg 24.995' = W 88deg 24' 60"
Title: Re: Need some GPS Education
Post by: Bear Heart on July 31, 2013, 02:57:00 PM
I wish more maps were made in the military grid reference system
Title: Re: Need some GPS Education
Post by: Pete McMiller on July 31, 2013, 04:01:00 PM
Bear Heart, If you are refering to the UTM (universal transverse meridian) scale, I get my maps printed with the UTM grid lines on the map in addition to the Lat/Lon lines.  I find the UTM (for the uninitiated it means the lines are 1 kilometer apart) to be much easier to use when transfering your position to a topo map.  I think the only reason most maps aren't printed with them is that most people are not aware it exists.
Title: Re: Need some GPS Education
Post by: Flatshooter on July 31, 2013, 04:13:00 PM
Hey Pete,
Like the "Charter Member- Ye Old F.A.R.T.S" reference. Got Newfoundland trip booked for 2014. Two "charter members" will be joining me. Hope to forward an e-mail to the guys regarding an African bow hunt the next year. Never too early to start planning.
Title: Re: Need some GPS Education
Post by: Burnsie on July 31, 2013, 09:57:00 PM
Thanks, DarkTimber
Title: Re: Need some GPS Education
Post by: Bear Heart on July 31, 2013, 10:54:00 PM
MGRS takes UTM and breaks it down even more.