Re: People who live in hurricane prone areas
<quote>And how many FM stations are set up to run off a battery/generator drawing only tens of watts?</quote>
At the heart of any FM transmitter is an exciter. It is the part of the transmitter that generates the carrier frequency, and modulates that carrier with audio.
Here is an example of one such device:
http://www.bdcast.com/products/details/analog/fx-50#tabs-1
It is a standalone 50 watt unit. With a suitable antenna, and restricting the audio to AM quality (50 - 7500 Hz), you could easily cover a 10 mile circle. AND if you will note, it is available in a 100 or 250 watt model.
If you were to download the brochure for the FM-50, you will note is AC power requirements:
AC Input Power: 97 to 133 VAC or 194 to 266 VAC, 50/60 Hz, 230 w maximum.
That puts it well within the limits of many small portable generators
Now, what is your point?