Contest University
Normally, Contest University cost $85 and is presented at Hamvention in Dayton. Since Hamvention was cancelled, the organizers had a virtual Contest University on Zoom and have made the presentations available on the web. The material is not limited to contesting and includes a great survey of recent rig transmit and receive capabilities entitled “Contest & DX Performance A Complex Subject Today: Great RX Performance – TX Limitations”. There is a module on digital contesting that includes a “how to” on a number of Elecraft, Icom and Yaesu rigs called “Everything You Need to Know About USB and Serial Interfaces”. In all, there are 9 presentations that are available here: Contest University links
The above links are to the slide decks of the presentations. They have also published a 10 hour YouTube presentation of all the proceedings Contest University on YouTube
With a bit of patience, you can click to the individual presentations.