FM broadcasting
VHF Radio waves do not travel far beyond the visual horizon, so reception distances for FM stations are usually limited to 30–40 miles (50–65 km) They can also be blocked by hills or buildings.
Warsaw radio mast
After the collapse of the radio mast at Konstantynów, the Polish broadcasting company used the old Raszyn transmitter with its mast near Warsaw, which had been used since 1978 for daytime transmissions of a second Polish broadcasting service programme in the longwave range on the frequency AM-LW 198 kHz, for transmissions on AM-LW 225 kHz with a power of 500 kilowatts. It is not possible to transmit from Raszyn on AM-LW (long wave) 198 kHz/1515 meters and 225 kHz/1333 meters simultaneously, so the transmissions on the second longwave frequency AM-LW (long wave) 198 kHz had to be discontinued until either a second longwave broadcasting transmitting facility was built in Poland or a special frequency switch, which would allow transmissions on both frequencies, was installed at the Raszyn transmitter. The latter, simpler solution would have decreased the effectiveness and reliability of both transmitters and was therefore found unacceptable.