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WSPR signal improvement

In my last post, I mentioned a WSPR experiment based on Raspberry Pi and the QRPi module. At that moment, the QRPi was connected directly to a long wire random antenna.

Two weeks ago, I have added a 1:9 balun and a good earthing. The results, in this period of time, can be seen in the below screenshot:


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Content added by YO3FVR, between 2018 and 2024 based on personal experience and public information provided by other authors, companies, organizations and websites, mentioned in the "Credits" section (in progress...).

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