Ham College 75 - Extra Class Exam Questions – Part 13
- Author
- [email protected]
- Published
- Sat 27 Mar 2021
- Episode Link
- http://www.amateurlogic.tv/transmitter/video/hc75.mp3
E3B Transequatorial propagation, long-path, grayline, ordinary and extraordinary waves, chordal hop, and sporadic E mechanisms.
55:06
