Hi all, As it has been brought up, can someone please explain the concept of QTC's please? I have been trying to get my head round the idea for years. I have never entered this contest because of it. 73 Ian -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP K2 #4044 |K3 #455 http://www.amateurradiotraining.org