this can be fun easy to lower an am table radio of tube type to cover it. In a message dated 2/14/2012 8:29:55 P.M. US Mountain Standard Time, kk5f at earthlink.net writes: The WRC has just approved a mostly worldwide amateur MF allocation from 472 kHz to 479 kHz (635.6 meters to 626.3 meters), 1 watt EIRP.