Originally Posted By: chaosmagnet
When comparing InReach to a PLB, it might be useful to know if the Iridium satellites have the capability of triangulating locations where there is no encoded GPS signal. I suspect that the answer to that is "no."


I do not know about Iridium, but I can do this with a Globalstar phone. It is supposedly accurate to within 100 yards or so. Its part of the "in call" menu and requires a call in progress. The phone will give you your location in lot and lat, degrees, minutes and the fraction. As SPOT uses the Globalstar constellation, there is some expectation that they can do this as well.