Archive.org and GlobalSecurity.org have comprehensive collections of US Military Manuals. These include Field Manuals (FM), Training Manuals & Circulars (TM)(TC), etc., from all branches of the US Military, which can be viewed or downloaded for free in .PDF format. Archive.org also has a large collection of lectures and educational videos from the US Army War College. Other related non-military resources are listed below as well.
The Wrong Hands by Ann Larabee : DIY Projects for The Evil Genius
Learn basic techniques for surviving in every Natural Environment on these websites. Survival topics discussed include: Avalanches, Blizzards, Bushcraft Skills, Cooking, Deserted Islands, Deserts, DIY, Earthquakes, EMP, Extreme Cold, Fires, Floods, Forests, Freeze Drying, Ghillie Suits, Hurricanes, In the Wild, Jungles, Knife Making, Navigation, Open Water, Quicksand, Sand Storms, Tornadoes, Tsunamis, and Volcanic Eruptions.
Survival Life Uncle Judd’s Website
Survival Resources Website
Survive Nature Website
These are some good sites to get the information you need to start learning about HAM radios. You can find the rules and regulations about operating on various bands/frequencies, types of radios, Frequency Databases that provides information about emergency and NOAA channels, and study guides for the licensing tests. Glen Tate, of Prepping 2.0, has a website called PAM-Radio.com where you can view his HAM radio intro videos and purchase electronic flashcards for learning the practical things you need to know about HAM radios.