Just received K3, #845, learning alot about it now. Tried RTTY in FSK mode and can't seem to get it to record on Writelog or MMTTY at Mark 2125 Hz and Shift 170 Hz. I am able to copy at Mark 1275 Hz Shift 170 Hz with problem. And it transmits fine as far as I can tell. What setup do I have wrong? Roland NA5Q