With simple wire antennas, any two stations on the same frequency would interfere with each other. Because of this, the FCC required most radio stations to shut down or reduce power at night leavi ...

Imagine taking the radio frequency properties of the dish antennas you see on rooftops and knitting them into a wearable garment—a sweater or a blanket that is ultralight, portable, easy to fold ...

When you buy a cheap ham radio handy-talkie ... The SWR was high all across the bands the antennas targeted. It won’t come as a surprise to find that making an antenna work at 2 meters and ...

NASA's Deep Space Network, an array of giant radio antennas, allows agency missions to track, send commands to, and receive scientific data from spacecraft venturing to the moon and beyond.

all radio SETI efforts were dependent on the intermittent use of antennas built for conventional astronomical observations. That situation has changed. Thanks to the interest and benevolence of many ...