While (impatiently) awaiting the arrival of my K3/100, I've been looking at the spectrum of my K1 and K2 transceivers... http://www.astromag.co.uk/k2/k1_plots.html http://www.astromag.co.uk/k2/k2_plots.html Fortunately, they both meet specification... Back to chewing my finger nails! 73 Dave, G4AON