Why is Coax 50 Ohms? (#340)
22:03
Why Do Some Verticals Have Radials and Some Do Not (#377)
21:32
Why doesn't a 75 Ohm cable measure 75 Ohms?
12:58
How a Crystal Radio Works
17:09
What Coax do I use? 4 Tips to choosing the RIGHT coax for Ham Radio
19:15
#143: Transmission Line Terminations for Digital and RF signals - Intro/Tutorial
16:09
Measure the Characteristic Impedance (Zo) of an Unknown Coax (052)
11:54
The Coolest Radio You've Probably Never Heard Of
9:02