[DenisM]

It surprises me that people can’t bring a PLB along when going to a non-trivial hike.

It’s only $300 and it can transmit SOS both to low orbit satellites and to rescue copters, and it has shelf life of five years (no need to charge).

[Rebelgecko]

I think the monthly subscription fees are a turnoff to some people (although I think there are a few brands now that don't require that)

[LorenPechtel]

PLBs have no subscription. You must register them with the government but it's free. And mine only cost $250--watch prices on Amazon to get a better deal.

What you are thinking of are the SPOT & inReach units--those have subscription fees but provide you text messaging while off the grid. PLBs are single-shot HELP messages, they can't be customized. (Are you simply stranded like these guys, non-threatening injury that keeps you from getting yourself out, or is it a major issue--say, the guy here last year that keeled over on top of Hell Hill. It probably wouldn't have made a difference but the hour it took to get help certainly wasn't good.)

[DenisM]

There is no subscription for PLB, and I have not seen it in the last five years since I noticed those devices.