Four steps
5 minutes per point, half a day to learn
No professional equipment or license is needed.
If a value is not yet reliable, the screen tells you on the spot, so you never find out about a failure after you get home.
01
Name the point
Pick a feature you can find again and enter a name and note. Everything you record next is saved to this point.
09:41LTE
New point1 / 4
Note
Manhole cover at driveway
Start at this point
02
Many fixes at one spot
Leave the phone on the spot and collect. The first few seconds jump around, then it settles.
Outliers are filtered out automatically.
09:43Sats 11
A-1 receiving42 samples
0.9 m
Scatter so far
09:43:220.4
09:43:201.2
09:43:195.9
09:43:1730.8
Get coordinate
03
Check the target is met
The screen tells you when you are within target. If not, just take a few more on the spot.
09:44Sats 12
A-1 checkDone
Target metScatter 0.9 m
Samples224
Filtered out77
Altitude92.8 m
Std. error0.06 m
Take photo
04
Photo, then move on
The photo helps you find the same spot next time. There is no equipment to pack up, so you just walk to the next point.
09:45LTE
A-1 saved2 photos
Site photo
09:45:12
Site photo
09:45:22
2 of 4 done
Next point
The struck-through rows on screen 02 are samples filtered out for large deviation.
Right after collection starts, fixes can be off by up to 30 meters; after a few seconds they settle.
The point of this procedure is that the screen tells you on site how far a value can be trusted.