Helllo, I have a little knowledge in electronics; started in 1984. I heard about (Preppernurse1, while listening to MarFoogle) If I could be of any support, respond back. I engineer lots of different types of systems: Security Cameras, Perimeter Alarms, Solar Power, Battery Banks, Communications Systems,,, There are lots of wholesale sources that most people are unaware of, example: if your buying 20 solar panels there's a place in Houston, TX that will make you a heck of a deal, did you know that you can buy Thermal cameras just like the gov uses and pay just a fraction of the cost no license required, ,, I am not trying to sell you gear, just trying to offer my knowledge for free and possibly save you some money and learning curve To Like Minded People, here is a little secret you might not know: a box made of 1/4 inch lead cannot be penetrated by prying eyes, in most cases just putting a sheet of lead on top of a buried box does the trick,, another little hack: thermal cameras can not see through glass and a suit made of (outer layer greenhouse type plastic, inner layer poly fabric treated with cornstarch and inner layer of greenhouse type plastic greatly reduces a human imprint down to a small mouse,, to make it a little more comfortable wear long sleeve shirt and pants,, I attached a photo of my little prepper cabin me an the kids are building, just a fall back spot in the back yard - testing the design, have plans to build four more in different locals