- Extended AM broadcast band
The extended MW broadcast band (sometimes known as the X-band) is a
medium wavebroadcast allocation (1629 kHz–1715 kHz). The band became officially available c. 1993 only in ITU Region 2 (North and South America). It is popular with microbroadcasters for having slightly better propagation characteristics than the standard AM band. Though supported on most (but not all) modern AM radio units sold in the Americas, this band is often unavailable to older radio receivers except for those with substantial overcoverage. On such radios, the 1600-1700 segment was labelled "Police", since it was the original policeradio band.
United States, commercial broadcasters using these frequencies are required to use AM stereo, though there is little commercial availability of the required receivers. Plus few stations in the band actually broadcast in stereo, and the FCCseems uninterested in fining them for violating the requirement.Fact|date=September 2007
Although the extended band is not officially allocated in Europe it is used by
Vatican Radioand a number of "hobby" Pirate Radiostations, particularly in The Netherlands, Greeceand Serbia.
In Australia, many commercial licenses have been released for the band. However, they have restrictions not placed on licensees of the standard MW band, including a much narrower bandwidth and greatly reducing sound quality. The vast bulk of licenses have never been used. Due to a number of factors, few Australian stations in this band have many listeners.
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