NPR Wants Product Recall

If you want your iPod or satellite radio to work in your car radio, you plug in an FM modulator. These little devices put out a signal on the low end of the FM band (88 MHz and 90 MHz). But when they are too powerful, they can interfere with radio signals outside your car. If you and I were driving near each other and you were using a powerful modulator for your iPod, it might interfere with my listening to NPR, for example.

So,