I carry an ACR SarLink View and a sat phone; its number is entered into the registration record for the PLB. The PLB registration record is updated with activity type and who else is in my party before the journey and removed upon return. The "view" portion of the SarLink View is a LCD screen which displays the GPS coordinates; I don't think the "view" is really needed as sar would have that information upon transmission so I look at it as a nice to have - can't hurt knowing GPS coordinates which could be useful if communicating on the sat phone. I purchased the SarLink View before the ResQLink was on the market.