Can be correct Jim, If I remember correctly VCO "jump" intervals are larger than 5kHz SWBC raster. (have you tried reducing RX EQ band 1 ? That might make this symptom less obvious) 73' Paul PD0PSB -- View this message in context: http://n2.nabble.com/K3-and-AM-RX-tp4774105p4778829.html Sent from the Elecraft mailing list archive at Nabble.com.