Dudley Ibbett <[email protected]> writes: > I would also add that the section on PDOP is rather technical for a > newbie. Perhaps this could be moved to a separate wiki page and the > answer to the question changed to be more general. If your GPS has a > display then this is more likely to be given as a distance. I must
It's true that PDOP is perhaps too complicated, but there's good advice lurking: turn on your receiver and let it be still for several minutes with a good sky view before starting to record. In the woods, one can go for quite a long time and not acquire some satellites, and with only 4 up high get atrociius accuracy. By letting the ephemeris for all get loaded before hiking, the track accuracy is much better. For receivers without a satellite status page, the 'accuracy' number is useful. If one notices that you occasionally see a claim of '4 m', then when it says '21 m' you know you are in bad shape, and should wait. Basically, stay still with good sky view until that number gets to the lowest value you typically see.
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