I have been trying to get my Linux RMS up and running on a Beaglebone Black (BBB) with a TNC-Black for the better part of four months. Currently I can (from the BBB) run check in and connect to one of the CMS. My current issue is I can not seem to connect thru an RF link to my BBB to send a message. I am working with the programmers to help figure out the issue. Brian has told me to look at my TNC board and make sure it all is together right. Here is the "rub" I am having the same issue on both of my BBB setups.