Military HF Radio - Episode 1 - RF Theory
27:21
Military HF Radio - Episode 2 - Military HF History
20:05
Understanding HF Propagation
1:36:26
HSH Public Hearing - Tue Jan 28, 2025 @ 9:00 AM HST
11:56
Propagação NVIS para iniciantes em rádio amador!
21:51
ATPL Radio Navigation - Class 1: Radio Wave Theory.
6:01
Radio Antenna Theory 101: what they are, how they work
37:31
Military HF Radio - Episode 5 - HF Antennas
50:19