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For PLB I am pretty sure it's universal. For messengers (like the inreach), find out what people in your geo use between iridium or SPOT because satellite cover

For PLB I am pretty sure it's universal. For messengers (like the inreach), find out what people in your geo use between iridium or SPOT because satellite coverage can vary. For example, I have heard that in alaska SPOT's only geostationary sat is really low on the southern horizon and anything that breaks LOS will interfere with the device. For PLB specifically you cannot test them. Once you activate them, they continually broadcast and cannot be canceled except by destroying the device. For messengers, they hook up to a web service and you can send messages to personal email or SMS via the sat network as your test.

GekkePrutser 4y ago
> I have heard that in alaska SPOT's only geostationary sat is really low on the southern horizon and anything that breaks LOS will interfere with the device. Any geostationary sat would be low on the southern horizon in Alaska. That's just how geostationary orbits work, they are over the equator. Though pretty high above (35.000km/22.000mi). So it's still visible there but yeah you need a clear view of the southern horizon. But Globalstar which runs the service for SPOT only has low earth orbit sats which are definitely not geostationary. They're only at a few hundred kilometers. However it could very well be that their orbits are aligned so that they are always pretty low to the south from Alaska, yes.