[Talk-GB] accurate GPS

Warin 61sundowner at gmail.com
Wed Oct 9 22:12:03 UTC 2019


On 09/10/19 22:03, Dave F via Talk-GB wrote:
> 2cm? I'm intrigued, what model are you using?
> What were the atmospheric conditions on the day you took your reading?

I'd think to get that level of accuracy you 'd need readings over some 
considerable time... days?

Otherwise you get bias from, as you hint, the atmospheric conditions, 
the satellites in view - their bias, angles ..
Unless you have access to correction data, say from a local fixed GPS.



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