Operating RTTY and N1MM+

This PDF document from FlexRadio explains how to set up RTTY and N1MM+ for Flex 6000: 

https://rhr-public.s3.amazonaws.com/Operating-RTTY-and-N1MM-for-the-FLEX-6000-How-to-Guide.pdf

You must be running the RHR desktop app to use DAX and CAT.