Here are four more talks from the 2017 ARRL/TAPR Digital Communications Conference in St. Louis. Ward Silver N0AX looks to the future: Scotty Cowling WA2DFI updates the past: Dave Witten KD0EAG takes on a fishing expedition: Dave Larsen KV0S challenges my ability to condense those long presentation titles: Details, audio downloads if you want'em on the web site: https://HamRadioNow.tv