I first met Alan, VK2ZAY, years ago when his web site alerted Billy and me to the fascinating world of trivial electric motors. Over the years we seem to have bounced around in similar kinds of projects. Yesterday morning, our two QRSS signals sort of crashed into each other in Belgium, on the "grabber" of Johan, ON5EX. Alan was making the LONG trip on about 1.5 watts, with all kinds of cool and sophisticated modulation (including HELL). My sig was, in comparison, a local, and a crude local at that: just 10 mW with nothing but an FSK pattern. For few minutes there we were on exactly the same freq, so I shifted up by about 20 hertz (amazing how quickly we get used to making such TINY frequency changes!). The screen shot above shows the results.
Here is a shot of one version of Alan's constantly evolving QRSS rig.
Conditions aren't quite so good this morning. Alan's signal is visible on the ON5EX grabber, but mine is only very faintly and intermittently in there.
I included the photo from Alan's Twitter page, because I felt a bit guilty about the last picture we ran of him -- he was wearing a hat made of LED's!
April 25, 2024. Meter Magic
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At times we need to include some form of metering in our homebrew rigs. No,
we will not be installing a Nano VNA in a transmitter. But often a current
mete...
11 minutes ago