Which one should be used and why from a users perspective.
Quick-Clot (US Based) made by Z-Medica uses Kaolinite which is a kind of clay and cannot be broken down by the body. When I have seen it used, it has burned on contact and needed to be cleaned out of the wound later. DoD users have reported difficulty in gaining formulaic documentation from the manufacturer.
Celox (UK Based) made by Celox Medical uses Chitosan, a natural polysaccharide, and is broken down by Lysozyme (found in human tears, saliva and mucus) into glucosamine (a natural sugar). It does not set off a clotting cascade, but clots the red blood cells it comes in contact with. From what I have seen it does not burn on contact and does not need to be cleaned out of the wound. I have no DoD information, but it is mandatory medical kit for the U.K. Military.
Personally - I'll take Celox over Quick-Clot.
The following chart shows FRS/GMRS and allowed wattage by channel. The lower frequency ranges from 467.7125 down to 462.5625 are set to lower transmission wattage making them excellent for close range communications. The higher frequency ranges from 462.5500 through 462.6500 and 462.7200 through 462.7250 are open for 50 watt transmission rates allowing for further distance with frequency 462.6750 reserved for emergency transmission. Repeaters triggered by CTCSS tones can be used to greatly increase the range of communication by prefixing the CTCSS tone when transmitting to trigger the repeater to listen and rebroadcast.
How do you communicate privately? This is a problem that has plagued mankind for centuries and has entered a new era of need with the advent of texting, instant messaging and mobile phones. For all intents and purposes, all of that data is currently transmitted in the clear. Government servers get split feeds direct from the phone company. Texting is not even encrypted at all and law enforcement can get transcripts of messages. So how does the average person protect themselves and exercise their right to privacy?