Mark helped me get the radio transmitter assembled, and I have his RTC program up and running. It was well worth the effort! It puts all of the functions I routinely use to run an engine on one screen literally at my fingertips. No clicking buttons to get to sub-menus, then scrolling, etc. He also added some nice shortcuts for various whistle sequences and other functions. There is so much functionality, it would take several paragraphs to fully describe it. I have it running on an old touchscreen laptop. He's working on adding enhancements like control of TMCC engines and position tracking. I highly recommend it!
Mark, thanks for all of your work on RTC, and for being so willing to share it with fellow hobbyists!