I have found it only around 14,109. But like many many modes - it's not used much.
John, W0JAB At 03:37 PM 2/19/2010, you wrote: >Lately I've been playing around with MT63 at the 500 hz bandwidth. It was >just about the only digital mode that I had not experimented with since >getting on the digital modes in 2003. > >I've made some contacts around 3584 kc and 14074 kc. The band plans that I >see for 20 meters on the internet call for 14109 kc but I've seen no >activity there or on any of other band > >The question is where most is the MT63 activity at? Or is there any? > >73 & GUD DX, >Thomas F. Giella, NZ4O