Custom/user-defined Geoid Height file
It would be good to select the Geoidal Height file from Locus Map 4 that will come in the future.
It seems that you can insert the file separately through the expert setting or you can insert it through the general setting.
In the case of Korea, if you write the "KNGeoid18" file, there is only a height error of "10cm" in general smartphones. RTK equipment has an error of "1~2cm"
If this happens, I think it would be good for users who enjoy the outdoors or for civil engineering surveyors.
Attach the "KNGeoid18" file