Kerry.

Somebody told you wrong, all is well. Cheers, Kerry. I never get lost everybody keeps telling me where to go

Somebody told you wrong, all is well. Cheers, Kerry. I never get lost everybody keeps telling me where to go

Perhaps all polls should have a bottom option X) None of the above. Really a limited choice Cheers, Kerry. I never get lost everybody keeps telling me where to go

Perhaps all polls should have a bottom option X) None of the above. Really a limited choice Cheers, Kerry. I never get lost everybody keeps telling me where to go

Really trees, heavy foliage and GPS really don't go together even with lots of $$'s. The more $$'s spent on more accurate type systems the more trees become a problem. One physical solution to trees is a chainsaw . Cheers, Kerry. I never get lost everybody keeps telling me where to go

Really trees, heavy foliage and GPS really don't go together even with lots of $$'s. The more $$'s spent on more accurate type systems the more trees become a problem. One physical solution to trees is a chainsaw . Cheers, Kerry. I never get lost everybody keeps telling me where to go

quote:Originally posted by Jim M. Furubotten: If you are not using a map to find location, is map datum still important? I read here that you should not use nad 27. Most of our maps use nad 27 in my area. I use nad 27 conus. Why would you use another map datum? Very important as it's a lot more than just a map datum (as such) as ALL coordinates to be of any use require a datum map or no map. This equally applies to UTM in which case the zone is also required. One needs to be using the datum that appplies to a particular data/coordinate set. If one is working from/on a NAD27 map then it's NAD27, a Geocaching coordinate set then WGS84 which also assumes the person who placed them was (well should have been) also working in WGS84. If not then the ground positions based on the same coordinate set used with a different datum will not match. Cheers, Kerry. I never get lost everybody keeps telling me where to go

quote:Originally posted by Jim M. Furubotten: If you are not using a map to find location, is map datum still important? I read here that you should not use nad 27. Most of our maps use nad 27 in my area. I use nad 27 conus. Why would you use another map datum? Very important as it's a lot more than just a map datum (as such) as ALL coordinates to be of any use require a datum map or no map. This equally applies to UTM in which case the zone is also required. One needs to be using the datum that appplies to a particular data/coordinate set. If one is working from/on a NAD27 map then it's NAD27, a Geocaching coordinate set then WGS84 which also assumes the person who placed them was (well should have been) also working in WGS84. If not then the ground positions based on the same coordinate set used with a different datum will not match. Cheers, Kerry. I never get lost everybody keeps telling me where to go

Why bother with the conversion stuff The utility already exists in the GPS. Change the position format to "deg min sec" input the DMS values and change back to your "deg min.m" and you have DM.m Cheers, Kerry. I never get lost everybody keeps telling me where to go

Why bother with the conversion stuff The utility already exists in the GPS. Change the position format to "deg min sec" input the DMS values and change back to your "deg min.m" and you have DM.m Cheers, Kerry. I never get lost everybody keeps telling me where to go

One can analyse endless amounts of data but averaging is certainly never going to be as important as being at a certain place at the best time. There will generally be that unknown and with some planning the "best possible result" can be achieved but that doesn't always suit as one can not always be at a certain place at the "best" possible time. These are actual examples but in no way are what might be expected elsewhere, it could even be worse but then things might be better, that's one of the problems, the unknown can be about 50/50. The results of averaging and the followup Affects of averaging part II as well as the Affects of averaging with obstructions Cheers, Kerry. I never get lost everybody keeps telling me where to go

One can analyse endless amounts of data but averaging is certainly never going to be as important as being at a certain place at the best time. There will generally be that unknown and with some planning the "best possible result" can be achieved but that doesn't always suit as one can not always be at a certain place at the "best" possible time. These are actual examples but in no way are what might be expected elsewhere, it could even be worse but then things might be better, that's one of the problems, the unknown can be about 50/50. The results of averaging and the followup Affects of averaging part II as well as the Affects of averaging with obstructions Cheers, Kerry. I never get lost everybody keeps telling me where to go

This is taking things to the extreme as WAAS doesn't give "proper" coverage over this way but we certainly receive the signal (POR) but just happen to be way way outside the ground station network which is where WAAS gains its accuracy capability. everybody keeps telling me where to go

This is taking things to the extreme as WAAS doesn't give "proper" coverage over this way but we certainly receive the signal (POR) but just happen to be way way outside the ground station network which is where WAAS gains its accuracy capability. everybody keeps telling me where to go

100 yards off (and WSW) might indicate the incorrect datum, should be WGS84 or NAD83 not any of the NAD27's etc. The 0.02 to 0.04 mi (I assume you mean miles and not minutes?) is still short of 100 yards but then so is the precision capability of some GPSR's. Cheers, Kerry. I never get lost everybody keeps telling me where to go

100 yards off (and WSW) might indicate the incorrect datum, should be WGS84 or NAD83 not any of the NAD27's etc. The 0.02 to 0.04 mi (I assume you mean miles and not minutes?) is still short of 100 yards but then so is the precision capability of some GPSR's. Cheers, Kerry. I never get lost everybody keeps telling me where to go

Averaging , do you really need it , No. Cheers, Kerry. I never get lost everybody keeps telling me where to go

Averaging , do you really need it , No. Cheers, Kerry. I never get lost everybody keeps telling me where to go

Horizontal only, no vertical taken into account and it's not going to show true downhill ski speed. Cheers, Kerry. I never get lost everybody keeps telling me where to go

Horizontal only, no vertical taken into account and it's not going to show true downhill ski speed. Cheers, Kerry. I never get lost everybody keeps telling me where to go

quote:Originally posted by Alan2: What's H - hemisphere? Examples? Alan Well it's not entirely just the hemisphere but when applied to latitude it does (N)orth or (S)outh but with longitude then it's nothing to do with the hemisphere but (E)ast or (w)est. Examples S23° 50.734', E145° 10.289' could also be written (and mean the same) as 23° 50.734'S, 145° 10.289'E or -23° 50.734', +145° 10.289'. Maybe the "H" would best be written as a "Q" in that type of generic format. Cheers, Kerry. I never get lost everybody keeps telling me where to go

quote:Originally posted by Alan2: What's H - hemisphere? Examples? Alan Well it's not entirely just the hemisphere but when applied to latitude it does (N)orth or (S)outh but with longitude then it's nothing to do with the hemisphere but (E)ast or (w)est. Examples S23° 50.734', E145° 10.289' could also be written (and mean the same) as 23° 50.734'S, 145° 10.289'E or -23° 50.734', +145° 10.289'. Maybe the "H" would best be written as a "Q" in that type of generic format. Cheers, Kerry. I never get lost everybody keeps telling me where to go

quote:Originally posted by chloew: Actually it should be HDD(D)° MM.MMM' . The minute symbol is a single apostrophe, and not double which is seconds. Tryin to be reaaally picky, Yes, yes, yes, yes, that's not being reaaaaaly picky that's just being correct. Geez what was I thinking Cheers, Kerry. I never get lost everybody keeps telling me where to go

quote:Originally posted by chloew: Actually it should be HDD(D)° MM.MMM' . The minute symbol is a single apostrophe, and not double which is seconds. Tryin to be reaaally picky, Yes, yes, yes, yes, that's not being reaaaaaly picky that's just being correct. Geez what was I thinking Cheers, Kerry. I never get lost everybody keeps telling me where to go

quote:Originally posted by SkydiverBC: Well if we are going to get picky... it's HDD(D)° MM.MMM Hemisphere, degrees, minutes, and decimal minutes. Picky, no that's not picky, this is picky HDD(D)° MM.MMM" Ya forgot the minutes symbol ", very important in making a written coordinate unambiguous . Cheers, Kerry. I never get lost everybody keeps telling me where to go