The following radio stations broadcast on AM frequency 540 kHz: 540 AM is a Canadian and Mexican clear-channel frequency.
[1] CBK, Watrous-Regina, Saskatchewan, and XEWA San Luis Potosí, Mexico, share Class A status on 540 kHz.
Because 540 kHz is a multiple of both 9 and 10, the frequency is available for use by broadcast stations in all three ITU regions.
[2] Stations in bold are clear-channel stations.
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