E838: License Free Off-Grid Comms Options for Smartphones, Text and GPS Sharing

I've come across some options for using your Smarphone Off-Grid over license-free frequencies and equipment, allowing messaging and GPS location sharing. These systems are not for Ham Radio, but for anyone, and can be used anywhere. Let's talk about these 3 options I have found and how they work.BTWR Starter Kit: http://hr2.li/zpga8Links to devices in this stream:Motorola T800: http://hr2.li/8cdmhPower Talkie: http://hr2.li/mm57bBeartooth: http://hr2.li/ffcoeBecome a supporter of this podcast: https://www.spreaker.com/podcast/ham-radio-2-0--2042782/support.