#316: Use NanoVNA to measure coax length - BONUS Transmission Lines and Smith Charts, SWR and more

TWO Part video: Part 1 shows how to use the Transform function in the NanoVNA to measure coax length or distance to fault. Part 2 (starting at about 4:40) digs a bit deeper into the effects of a transmission line on the observed impedance and SWR, how this is represented on the Smith Chart, and some of the "magic" of quarter-wavelength long lines. I refer to a video on a T/R Switch that uses PIN Diodes and a 1/4 wavelength line: https://www.youtube.com/watch?v=A1BAq0KxIdc Here are the notes and charts used during this video: http://www.qsl.net/w2aew/youtube/NanoVNAcoax.pdf http://www.qsl.net/w2aew/youtube/SmithCharts.pdf http://www.qsl.net/w2aew/youtube/wavereflection.gif