Ham College 74 - Extra Class Exam Questions – Part 12
- Author
- [email protected]
- Published
- Sat 27 Feb 2021
- Episode Link
- http://www.amateurlogic.tv/transmitter/video/hc74.mp3
E3A Electromagnetic waves: Earth-Moon-Earth communications, meteor scatter, microwave tropospheric and scatter propagation, aurora propagation, ionospheric propagation changes over the day, circular polarization.
55:43
