Without directional antennas, the 15,000 or so full-power AM radio stations in the United States at its peak would not have been possible. If the AM band ever goes completely away we’ll be sad ...

You can see the results he gets using the setup as an AM radio receiver in the video after the break. He tested against a meter long antenna and found that his setup far outperforms it.

The earliest external radio antennas on cars started popping up alongside ... New cars often need to access AM/FM radio waves, GPS signals, satellite radio, cellular connections and mobile ...

A directional roof–mounted antenna can often help. AM signals are prone to interference by a variety of technical sources: other radio stations, power lines and computers. Lighting sources also ...