The PA - 30 is a small, passive wideband receiving antenna for the long-, medium- and shortwave bands, mentioned for indoor- as well as outdoor use. The PL 259 antenna plug fits directly onto the antenna input of the receiver, an antenna tuner is not required. The module in the middle is an impedance matching transformer, which matches the 4 mtrs antenna wire to the coaxial lead-in antenna cable and reduces also noise and interference. The performance of this low cost antenna is much better than a piece of wire (random wire) of the same length. The PA - 30 antenna is an ideal solution for holidays, apartment dwellers and other applications where it is impossible to hang a large antenna. The PA - 30 is also delivered under the brand-name NASA PA 30.