A few additional comments .... as "PSE MAN", in every state where I have hunted using any sort of electonic communication for directing hunting activities is not legal.
We use our GMRS's to check up on each other, communicate the need for help, info about when we are headed in, etc. As for the loud "squelch" and other unintended (and unwanted)noise sources associated with the use of hand helds, many come with the ability to disable these functions. Some do not.
The use of "Smart Phones" is a great help too, and I use mine often. However, service in wilderness areas is often spotty at best.