4th July 2014, 04:31 PM
Handheld GPS e.g. Garmins are pretty much standard when I've done walkover survey. Phone GPS can be used (battery life can be more of an issue than with handhelds), but make sure it's a phone that doesn't have A-GPS (i.e. one that needs a data signal to boost the GPS). On Android the app GPS Status is very good (I've found) and can give you co-ordinates in OSGB NGR.
With both phone and handheld GPS you'll struggle to get a better accuracy than ca. 4.0m in my experience
With both phone and handheld GPS you'll struggle to get a better accuracy than ca. 4.0m in my experience