Redleg1SG

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Don't forget; these days it's much easier to derive a meter by multiplying 1,650,763.73 times the wave-length of the orange-red light emitted by krypton-86. Much more convieient than measuring the earth & doing all that messy averaging and math and stuff. Or if you have a good flashlight you can just measure the distance light travels in a vacuum @ 0°K in 1/299,792,458 of a second. Either method should work just as well.

Can't help you with the coord system without more research, but the marker is probably an orienting station. Simplified explanation. An Artillery survey instrument called an Aiming Circle is set up over & centered on this marker. The AC is aligned with the listed aiming points, and the instrument readings are compared to the listed coord (in mils) to determine the accuracy of the instrument before it is used to survey or 'Lay' artillery pieces. The mil or milliradian was adopted by the military and is based on the radian. pi times 2000 = 6283. We are kinda slow, so we rounded it up to 6400 to make the math easier. Works out well, since @ 1000 meters, 1 mil = an approx. 1 meter spread. Also handy to use with UTM, which is based on meters & a system you can actually manipulate mathematically. 'Mil' system was in use during WWII & still going strong.

http://www.magellangps.com/en/support/prod...meridiangps.asp Link is for product info. SD slot is for SD card. Additional memory to load maps into from various sources. See manual online. Search for magellan in these forums for more advice.

Several points: & pay attention. This is the only post I'll do about this. - I'd like to thank everyone who has supported our right to think for ourselves. - I totally support everyones' right to express their opinion on this or any other subject. - I don't have time to mess with forums or chats but I felt this was important. I'm spending 12-14 hrs a day helping to train & equip fine men & women that defend your right of free speech. Even GCs' right, as was said earlier, to "censor" whatever they thought was politically incorrect. - I have received no negative notes on the cache page,or by email, from GC or any other unhappy visitor. - I received no notice or chance to work with GC on any preceived problems. I would reworked the page within the bounds of good sense, but got no chance. -I will not try to force my opinions on anyone & I resent the fact that a small minority has gotten away (again) with forcing their's on the masses (us). As I said earlier, This post is to express my humble opinion, & thank the folks who have supported OUR sport.