Radio amateurs are inventive people, and though not all of them choose to follow it there is a healthy culture of buildng radio equipment among them. In particular the field of antennas is where ...

Deep Space Station 23, NASA’s latest addition to its Deep Space Network, recently reached a major milestone with the installation of its 133-ton reflector dish. This cutting-edge antenna, located at ...

It’s a skill that radio amateurs pick up over years but which it sometimes comes as a surprise to find that is not shared by everyone, the ability to casually glance at an antenna on a mast or a ...

Two radio telescopes with 40-meter-diameter antennas, one located on Changbai Mountain, Jilin province, and the other in ...

Antennas are mechanical components which either transmit or receive radio frequency signals. For transmission, an oscillating RF electrical current is fed to the antenna's terminals, where the conduit ...

Deep Space Station 23's 133-ton reflector dish was recently installed, marking a key step in strengthening NASA's Deep Space ...

ELITE 750 - Broadcasts every radio wavelength—AM,FM, LW, SW, SSB and VHF aircraft band frequencies. The 360° rotating AM antenna pulls in even the weakest of signals for full, bold sound.

His friend Bob Silliman traveled from Boston to Evansville several times to help test the radio gear during the war. America ...

SHANGHAI -- Two radio telescopes with 40-meter-diameter antennas, one located in Northeast and the other in Southwest China, ...