Garry I just checked my beacon at 1145pm local (0545utc) my rec says it is 187493.5 hz with outside air temp of 80 degrees f. I am usually about 0.3 hz off of your calibration. Quiet here tonight. Good luck. PAUL DAULTON k5wms at aristotle.net Beacon WMS qrss 30/slow 187.492 khz 24/7 EM34wu Jacksonville, AR USA