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Notebook of Time and Frequency Experiments

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Ham Radio/SDR/SDR/Test and Lab Equipment/Uncategorized Hermes/HPSDR/SDR/TAPR August 11, 2017August 31, 2017

Hermes SDR as spectrum analyzer

I was fussing about signal generator output accuracy because I wanted to calibrate my HPSDR Hermes software defined radio ("SDR") so that I could calculate the absolute power input in dBm, assuming a 50 ohm load impedance) based on the…

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General September 6, 2015November 22, 2015

John’s New Geekblog

I've intermittently had a blog running at febo.com for years now.  I used it mainly as a logbook of experiments, and it wasn't intended to be entertaining for visitors.  I recently discovered that the blogging engine I used was hopelessly…

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