Hayden Honeywood - VK7HH starts of 2022 with a video showing of his remote installation site and the ZachTek WSPR transmitters that is running there along other interesting equipment. Take a look a here https://youtu.be/iCh-V8CIBR4
In the Video he talks briefly about Tropospheric Ducting and using WSPR as a system to detect these openings on the VHF and UHF bands. He has done quite a few Videos on Tropospheric ducting that is highly recommended viewing to get your understanding and skills up on that topic. Playlist link here: https://www.youtube.com/playlist?list=PLSuX83ay4Oujld7PzCJmd-VzxBceFhSj3
Thank you Hayden for kicking off 2022 with a great Video.