Hi Ken, A 'parameter reset' should solve the problem. Hold down the MENU button while pressing the POWER button. This will reinitialize all the parameters to their default values. 73, Paul -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-Problem-tp7608603p7608607.html Sent from the Elecraft mailing list archive at Nabble.com.