150 to 540 kHz: This is what most SWLs mean by "longwave." Most stations heard in this range are navigation beacons that continuously repeat their call signs in Morse code. There is a also a broadcasting band in Europe from 155 to 281 kHz. Some RTTY signals are found in the upper end of this band. Marine weather and safety broadcasts, known as NAVTEX, are transmitted on 512 kHz. Your best reception here will be at night, especially during the fall and winter months.