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How accurate is GPS?	by McNutcase	2009-08-26 16:23:07
General rule of thumb, 5-10m horizontal	by AndyA	2009-08-26 16:53:33
OK. That tells me they were actually using DGPS.	by McNutcase	2009-08-26 17:25:24
It could just be WAAS/EGNOS.	by AndyA	2009-08-26 17:43:44
They were getting high accuracy in real time.	by McNutcase	2009-08-26 17:47:44
We have a company saying	by AndyA	2009-08-26 17:57:54
Accuracy is a function of price. Pick an accuracy and we'll give you the price tag. If they truly were stand alone (or WAAS or equivalent) rather than RTK or local DGPS then 1m is about the best they could get real time. We sell a hand held that will do 20cm real time but that is using a cellphone to link in to the national network of base stations. Basically a poor* mans RTK setup. Also position accuracy's are given per position. If you collect one position a second and average then your accuracy will get better. If you average 12 hours data (one SV ground track repeat) even a cheap GPS will be getting fairly accurate. But that's rather a long time to hold a pole still. *Poor meaning only has $8k-$10k to spend on their GPS system.
[ Reply ]
That sounds like a play on "Time is money".	by kahuana	2009-08-26 19:10:37
It used to be that was the only way.	by AndyA	2009-08-26 19:24:28
Oddly enough this happened in the mid 90's.	by kahuana	2009-08-26 19:30:08
More like the this: Good/Quick/Cheap....Pick Two. (n/t)	by retiqlum2	2009-08-26 20:17:55

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