Radom longwave transmitter is a facility for commercial longwave transmission west of Radom in Poland. Radom longwave transmitter, situated at 51°25'N and 21°07' E is the only transmission facility for frequencies under 100 kHz in Poland. It uses an antenna system carried by 1 150 metre and 3 100 metre tall guyed masts. Radom longwave transmitter worked on the following frequencies with the following callsigns:55.75 kHz, callsign: SOA60, 40 kW transmission power 58.25 kHz, callsign: SOA70, 360 kW transmission power 62.45 kHz, callsign: SOA80, 40 kW transmission power 64.9 kHz, callsign: SOA90, 40 kW transmission power 76.35 kHz, callsign: SNA20, 40 kW transmission power 80.5 kHz, callsign: SNA30, 40 kW transmission power 81.35 kHz, callsign: SNA40, 40 kW transmission power