Eldon, WA0UWH, says the podcast inspired him to build some QRSS transmitters for 30 meters. His first effort was atop a 9 volt battery. The latest version has a more traditional enclosure. Eldon hopes to be seen on some of the grabbers -- please help him out if you can. In my case the hard part was getting the transmitter into the frequency band for QRSS (only 100 Hz wide!).
Velocity factor measurement
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A frequently asked question is how to measure transmission line velocity
factor. The wide adoption of the NanoVNA has spurred these questions. So,
it is go...
10 minutes ago