Jim will probably tune in big steps for AM. With more low frequency content in the audio/carriers of AM signals the VCO interval cross-over points may be more evident. 73' Paul PD0PSB -- View this message in context: http://n2.nabble.com/K3-and-AM-RX-tp4774105p4778700.html Sent from the Elecraft mailing list archive at Nabble.com.