> I read somewhere in the K2 manuals (plan on ordering my > relatively-loaded > K2 this fall) that 600Hz is suggested for CW operation even > though the radio > would be capable of doing 700Hz. Does anyone know why 600Hz is > "preferred"? I would say that it's just an average of what people use. My preference is 500 Hz. It's the most pleasing for my ears. 73 Bole, 9A3RR