SP5KAB is the oldest amateur radio club in Warsaw. We have been operating continuously since the 1950s and we can boast of many achievements, as evidenced by a rich collection of cups and diplomas. For several years now, we have observed a significant increase in interest in issues related to communication in amateur bands. The best evidence of the great interest in amateur radio is the fast growing membership of SP5KAB. As we know, our hobby has different faces and does not end with communication. Among us you can meet advanced constructors of radio equipment, as well as enthusiasts of radio history. Apart from meetings in the club's headquarters, we organize field activities - radio activations of interesting places deserving promotion due to their historical value. We are also involved in activities related to the defence of the country.