The video shows the inside of the box which, as you’d expect, is a toroid with a few turns of wire. The proposed antenna is an end-fed dipole fed with the unun. These are somewhat controversial ...

He claims it will noticeably improve both transmit and receive by making a quarter-wave monopole into a makeshift dipole antenna system. Per his instructions you basically add a short wire to the ...

Meaning "two poles," a dipole antenna is the simplest type of antenna, consisting of an electrically conducting wire or rod one half the length of the maximum desired wavelength. The wire or rod ...