As a business lawyer for many years, I worked with clients in a wide variety of industries. One such niche in which I worked was the telecommunications industry. My clients ran nearly the full gamut: wireline, wireless, cable and wireless cable, Internet and even early wireless Internet (nothing with satellites or outer space, as I recall). The Office of Spectrum Management, part of the National Telecommunications and Information Administration of the U.S. Department of Commerce, developed this very cool chart of frequency allocations in the U.S. radio spectrum.
I thought this was pretty interesting stuff and I wrote a few articles that appeared in publications ranging from the ACUTA Journal of Telecommunications to Cabling Systems to Utah Business. While the technology has moved forward, these articles provide good info on the basics. Here’s Understanding Wireless – Medium and Long-Range Technologies and A Short Primer on Optical Networking, the latter of which I wrote with my brother, Ed.