If you pop over to the Techno Babble
viewforum.php?f=21 forum, there are a few threads on PLBs and the pros and cons of various.
PLBs may be used in some countries overseas, but not all. Some countries do not allow use of PLBs like Czech when I last checked.... (but they allow you to possess). Some countries only allow PLBs for maritime use (like Portugal), and some countries require a license to operate PLBs (like Norway).
I think these might have changed though. When I checked for Norway, I was told that PLBs needed a license, but the licenses were only for Norwegians
https://eng.nkom.no/technical/equipment ... or-beacons. I couldn't find out what happens when foreigners bring in their own PLBs. I think Suz posted about asking about PLBs in Scandinavia in another thread in Techno Babble.