47:14

RF Fundamentals

20:23

Electromagnetic Waves - with Sir Lawrence Bragg

11:13

Radio Frequency (RF) Fundamentals

26:09

Radio Antenna Fundamentals Part 1 1947

12:05

The origin of Electromagnetic waves, and why they behave as they do

10:04

INTERCEPT ANY RADIO SIGNAL!!!!

13:55

Antennas Part I: Exploring the Fundamentals of Antennas - DC To Daylight

21:25

An Introduction to Radios and Emergency Communication