MIZUHO RX-5 Radio kit & UZ-77 Loop antenna

Long ago in Japan there was a communications equipment manufacturer called "Mizuho," and today I would like to introduce two of their products: a medium wave radio kit and a loop antenna.
The radio kit alone does not have very good sensitivity, but this changes dramatically when you connect a loop antenna.
The UZ-77 loop antenna is a very compact antenna consisting of six turns of a 3 mm wide pattern spaced 2 mm apart on a copper foil board measuring approximately 200 mm x 200 mm.
The loop antenna part is hanging under the eaves outdoors, but if you change the direction of the antenna, it is a highly sensitive antenna that could also be used for DX.