Pogo Turf Pro System Manual page 26

Additional Sampling Considerations
Although the GPS function is activated by default, it is a good idea to make
sure it is in fact activated as indicated by a white filled button
Sampling positions are most accurate when the satellite strength is showing 9
or higher. Values lower than this are common under trees, next to power
lines or in proximity to buildings. Weather plays an impact as well, but
generally speaking, if you turn the POGO on in the open course up to 10
minutes before you start sampling and keep it on throughout your sampling
processes, you will have acceptable or better GPS performance
Salinity Index is a good indicator of the concentration of salts for a given
amount of water. This adds value to simply assessing EC alone since all turf
systems have different optimal EC ranges. The best way to get a full
understanding of what is driving your EC is to utilize the POGO Turf/Soil lab
If you return to a zone more than 15 minutes since your last sample in that
zone, the app will prompt you asking if you wish to save to a new data set. At
any time, you can save a set of data to a new data set. This is helpful for
analyzing flushing practices, doing daily dry down assessments and logging
other operations you wish to compare
analysis report