Fred, See my response to Johnny Siu. That is the best I can do to explain it in "layman's terms". 73, Don W3FPR On 2/13/2015 8:03 PM, k6dgw at foothill.net wrote: > What would I gain from the new Synth? I have no nearby phase noise > problems since Jim [WX6V] got a K3, and I think my TX signal is > "within specs." >