[underdeserver]

The accuracy of the reading determines the error. If today's error is so large that you have to resurface for GPS several times a day to reset it, maybe this can lower that error so you only have to resurface several times a month.

Huge game changer if true.

[pc86]

Especially if it means you can go into enemy territory for days or even weeks before exiting to friendly or international waters to surface and reset.