If your looking for a quality but cheep emergency communication option check out the spot.
I have used the devise on two different grand trips. Each day we would press an OK switch on the devise which would do three amazing things.
First it would send our location to a web link connected to a google map. This allowed all the participants facebook friends to click on the link and follow our progress.
Second, it would email our location important family members.
Third, it would send a text message stating our OK status to family members cell phones.
Furthermore, the spot is waterproof and I kept mine in my PFD pocket. It has also been used for successful grand canyon rescues.
Last you cant get the devise up and running for under $200. And if you need sat phone commutation down there even in the non motor season there is almost always a trip in your launch bubble with one. Save some beer and trade it for time on another trips sat phone.