Hi all, I am going to add a narrow filter to my K3 order for data modes mainly but also CW I guess :-) Which narrow filter do you think I should choose? I am only using the stock 2.7kHz filter otherwise. Ian -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP K2 #4044 |K3 #?