Marketing. :) -- Julian, G4ILO K2 s/n: 392 K3 s/n: ??? G4ILO's Shack: www.g4ilo.com Ham-Directory: www.ham-directory.com On 9/5/07, John Huggins <john at johnhuggins.com> wrote: > > Charles brings up a good point. What is it that makes any microphone > "optimized" for any radio. Pin outs are obvious of course.