The $10 Component Tester

Earlier in the year one of the ham club members turned up with a component tester he had discovered on the internet and built up. The device measures essentially any component you connect on it and tells you what you have. From a simple resistor to a capacitor, diode or even a transistor. the specs…

RaspberryPi WSPR Beacon – WsprryPi

The inspiration to purchase a RaspberryPi originally came from reading an article about turning it into a simple HF WSPR beacon. The device will output around 10 milliwatts directly from the GPIO4 pin and once connected to antenna will transmit away!. The first step was to build a simple band pass filter, i choose 30m/10Mhz…

EARCHI End-Fed 40-6 build.

Back when I started Sota, i was looking for a quick and easy antenna for portable use, along the way other items have been built and obtained that have made this project not as critical. The project is a simple 9:1 Unun that creates a match for a random bit of wire, it still needs…