What is the purpose of opposite sideband nulling with the PX3? I was able to do every band except 50Mhz. On 50 I was not able to get any change at all. The other bands nulled fine. Is there a factory setting I can use on 50Mhz? Tnx, Mal WA2TWA -- Sent from: http://elecraft.365791.n2.nabble.com/