I'm curious as to how many folks use their iP[hone's GPS for tracks?
I am a retired serviceman that was a land surveyor and very familiar with mapping and some of the older military GPS units.
I'm amazed at the accuracy of the GPS on my iPhone.
OpenStreetMap
I'm curious as to how many folks use their iP[hone's GPS for tracks?
I am a retired serviceman that was a land surveyor and very familiar with mapping and some of the older military GPS units.
I'm amazed at the accuracy of the GPS on my iPhone.
Discussion
Comment from drlizau on 20 July 2010 at 06:44
Welcome to OSM. Handheld GPS has become more accurate, but my surveyor son is not really impressed with the accuracy compared to the commercial gear he is using.
I don't use a phone GPS but a purpose built unit.
Comment from imroy on 20 July 2010 at 06:56
From what I've read and experienced myself, the iPhone GPS is not that great. I've found that my i-Blue 747 A+ GPS is much more accurate. And much faster.
Comment from JohnSmith on 20 July 2010 at 07:53
The iPhone has a history of poor GPS accuracy, assumed to be antenna design since they use similar chipsets to other devices with better accuracy, I wonder if the iPhone 4 has worst accuracy considering the stink about the antenna design...
Comment from Stefan-China on 20 July 2010 at 12:52
After 1.5years not doing much on OSM I have just now purchases GPS Kit and used it for tracking.
I would agree: the quality is quite amazing. As I am doing "ground work" (= tracking in China) I might not see deviations of 1-5m against other tracks, but it seems, the accuracy is ok. ;-) I will continue
Comment from wallclimber21 on 20 July 2010 at 16:45
I have long recorded with both an iPhone and a Garmin Edge 305, now I don't do that anymore: iPhone wasn't significantly better or worse. It's more that one sometimes performs bad and sometimes the other for no obvious reason. At the end of the day, I always correlate my recordings with satellite imagery to make sure there are no major mistakes.
Also funk
Comment from wallclimber21 on 20 July 2010 at 16:46
Also think about this: the best camera is the one you have with you. The same is true for a GPS. :-)
Comment from Kevin Steinhardt on 20 July 2010 at 22:07
'Amazed' is the wrong word. My iPhone (3GS) barely gets anything more accurate than about 15 m.
Comment from TheLastRebel on 22 July 2010 at 04:31
I'm getting a constant accuracy of about 2 meters when leaving the iphone placed over an SCP just down the road. I'm using the MotionX App to acquire the info.