WWV Time Tick Arrival Time Study to Investigate Multiple Modes During Daily Dawn and Dusk Transitions presentation from Steve Cerwin WA5FRF during the HamSCI 2020 Conference.
HamSCI Website: https://hamsci.org
HamSCI 2020 Complete Playlist: https://www.youtube.com/playlist?list=PLs_Ab58w9LI-QR_iKPAfplFGivnFqhVfs