6,721円 A fascinating examination of an overlooked weapon For most of us, our knowledge of slings and slingstones begins and ends with the biblical tale of David slaying Goliath. Scholars and archaeologists have told us that slings like the one David employed were common in the Old World, used not just f...

800円 PACE Planning for Emergency Communications: Your Essential Guide to Staying Connected When Disaster Strikes Reliable communication is the lifeline of safety during any emergency, but it's often the first thing to fail when needed most. Whether you're navigating an urban disaster like an earthquak...

3,196円 The first book-length treatment of This American Life, Empathy Machines contextualizes the influential show within the history of radio, looking back to radio's golden era and the para-social connections that it encouraged, as well as the formation of NPR in the 1960s and the “Great Society Liber...

166円 Access to the radio spectrum is vital for modern digital communication. It is an essential component for smartphone capabilities, the Cloud, the Internet of Things, autonomous vehicles, and multiple other new technologies. Governments use spectrum auctions to decide which companies should use wha...

2,430円 Perhaps the most easily recognized military helmet of the 20th century is the German Stahlhelm. In the revised and expanded edition of this classic, Floyd R. Tubbs and Robert W. Clawson identify and classify the Stahlhelm and relate its history, designs, features, and uses. No single nation has p...

3,224円 Build a web-connected software-defined receiver with OpenWebRX+ software, a Raspberry Pi, and an RTL-SDR USB stick. Explore and share the radio spectrum! Take one Raspberry Pi, an inexpensive Software-Defined Radio USB stick, and OpenWebRX+ software, and you have the makings of a powerful web-con...

2,940円 In this thrilling and utterly unique work of narrative non-fiction, Katherine Dunn explores the acute vulnerability of the GPS satellite system – in a book that lifts the lid on the invisible connections of the globe, from the space race to the phone in our pockets This is the story of the Global...

1,600円 The aircraft radio is an amazing piece of equipment. By pressing down on the microphone switch you can have a conversation with a wide range of people; from the local controller to other pilots in the area. But operating the radio also comes with responsibility. To avoid the serious consequences ...

500円 This ultimate guide to the fascinating world of Morse code communication within HAM radio operations. Whether you are a beginner or an experienced HAM radio enthusiast, this comprehensive eBook will equip you with the vital skills and knowledge needed to excel in the art of Morse code. Dive into ...

1,600円 Your Baofeng radio looked simple when you bought it. Then you turned it on. Now it is beeping at you, flashing confusing numbers, and making you wonder whether you just wasted money on a plastic brick. The factory manual is no help. The menus feel cryptic. And every wrong button seems to make thi...

1,600円 Stop Relying on Luck and Factory Settings. Turn Your Dusty Radios into a Lifeline. The Problem: You bought a set of GMRS radios for peace of mind, for family road trips, overland adventures, or that gnawing "what if" feeling about grid-down emergencies. But right now? They are sitting in a drawer...