[k3ng] built his own automatic antenna tuner. First, it measures the SWR of the line by using a tandem match coupler. This device allows the forward and reflected signals on the line to be extracted.

Most people, however, just see them as cheap. So it is no surprise that hams like [jmharvey] will build an antenna analyzer from a DDS module and an Arduino instead of dropping a few hundred ...

The Mohu Arc Pro is a curved, amplified antenna that's designed to sit near your TV or perhaps on a windowsill (though it's ...

USB TV tuners act as antennas for your monitor, PC, or laptop, letting you watch free TV channels on devices even if you don't have a cable provider. Getting it to work is pretty simple ...