It consists of a (nominal, never accurately measured) 20mw signal feeding into this whip antenna dipole. Since then, I’ve actually replaced the burned out Arduino board and had it operating continuously from my back yard, powered by a small solar cell feeding a 7.2Ah lead acid battery through a Chinese charge controller. Long time followers of my blog might remember that I tried to setup a small WSPR beacon during the last Field Day, but that a variety of problems kept it from operating. In fact, that’s exactly what I got it for. As a ham, I’m usually most interested in using it as an antenna analyzer, which ideally means that I want to sweep it over a range of frequencies, and graph something like the standing wave ratio as it varies by frequency. I need to work on figuring out how to set it up to a less cluttered display. I find the overall display to be a bit complicated by default. Here’s more or less what it looks like when powered on.
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