Chapter 2. Radio Spectrum
In this chapter…
Radio is at the heart of wireless communications. Its basic principles are more than a century old, but it continues to evolve almost as fast as computing. Digital broadcasting has managed to cram more capacity out of old wavebands, while new technology opens up new ones. The persistent electronics revolution is making radio circuitry smaller and lighter, to the point where transceivers that fit onto a single microchip transmitter are no longer a fantasy.
Despite the advances, radio spectrum remains a finite resource. While anyone can lay fiber cables in the ground, not just anyone can start their own cellphone ...
Get Essential Guide to Wireless Communications Applications, The now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
