The October 2010 issue of the Institute of Electrical and Electronic Engineer’s (IEEE) Spectrum has an article titled, “The Great Radio Spectrum Famine.” The culprit, of course, is the wireless Internet. As more and more people buy smartphones, they demand more and more bandwidth.
The article states:
Regulators have few options to head off the coming bandwidth crisis. They can’t realistically expect to reduce demand. Nor can they expand the overall supply. That leaves the daunting chore of squeezing today’s users into narrower slices of the radio spectrum, thereby eking out more space for other things. That’s sometimes possible, but it’s not easy. To reengineer existing radio systems—or their users—is a bit like trying to overhaul a car’s engine while it’s barreling down the highway.
Policymakers, at least in private, sometimes hold out hope for a fourth option: that some game-changing technical breakthrough will save the day at the 11th hour. But nothing now on the drawing board suggests that technology alone can get us out of this predicament.
It goes on to target the swath of spectrum that’s currently the most coveted:
Every application of radio works best within a certain range of frequencies, and mobile broadband is no exception. Its sweet spot is relatively narrow, roughly in the range of 300 to 3500 megahertz. That’s because radio waves that are much above 3500 MHz (shorter than about 9 centimeters) do not penetrate well into buildings or through rugged terrain, leading to frustrating dead spots. Lower frequencies are better in this regard, but they require awkwardly large antennas for efficient transmission; 300 MHz is roughly the lowest frequency compatible with a reasonably efficient antenna that’s small enough to fit in a handheld device.
While the article doesn’t mention amateur radio in particular, read between the lines. No service is sacred. At the very least, this should make you think about joining the ARRL if you’re not already a member, and if you are, supporting the spectrum-defense activities a little more solidly.