If I had to prioritize the skills needed, number one, the one I failed spectacularly several times, is navigation. The Doppler system is helpful. But more importantly is a solid understanding of the ARC-UD and specifically how the 828 couples with it. The step I didn’t understand, but which is necessary, is to press the little tune button after setting the frequency on the 828.
I feel like it trolled this thread a bit in my posts from a few days ago. This campaign has taught me a great deal.