Not to beat it to death but the 100khz digits on each VFO need to be close to each other for it to happen such as VFO A is 7267 and VFO B is 21261. John N1JM -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-and-K3-VFOB-tp7104075p7104798.html Sent from the Elecraft mailing list archive at Nabble.com.