On Wed, Oct 09, 2019 at 11:49:35AM +0100, Russ Garrett wrote: > On Wed, 9 Oct 2019 at 11:40, Andy Robinson <ajrli...@gmail.com> wrote: > > Are you using trig points that are also OS Net station locations? > > https://www.ordnancesurvey.co.uk/legacy/docs/gps/OSNet_GPSWebSite_Coordinates_File.txt > > Pretty sure that all those OS Net locations are actually fixed GPS > receivers rather than trig points, and so not something you can go and > plonk your GPS receiver on. The file definitely seems to list the > model of receiver at each one.
I have visited and mapped a few of the passive stations which are usually small pillars a few cm high. Most (all?) are now "legacy" but they ought to be much more accurate than the much older trig points. ael _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
