MW DX, short for
mediumwave DXing, is the hobby of receiving the reception of distant
mediumwave (known as
AM in
North America) radio stations. MW DX is similar to
TV and FM DX in that
broadcast band (BCB) stations are the reception targets. However, the nature of the lower frequencies (520 - 1710 kHz) used by
mediumwave radio stations is very much different from that of the
VHF and
UHF bands used by
FM and
TV broadcast stations, and therefore involves different receiving equipment,
signal propagation, and reception techniques.