If he just wants to be able to call for help in an emergency, then racingtadpole is correct - a PLB would be fine.
If he just wants to call for help OR let the family know he's OK then a SPOT would do the job. It uses the satelite phone system to send one of two pre-defined text messages, or send an emergency text message, all with GPS location. It's unreliable in forest but works fine in open country.
See www.findmespot.com
Now if a SPOT is going to be sufficient, then I have one that I don't use much and could lend.
Cheers
JamesMc |