KA7OEI's blog

Random musings - usually on a technical (nerdy) subject - perhaps related to amateur radio and things found at ka7oei.com and modulatedlight.org. No AI is used to generate this content.

Thursday, October 22, 2020

Using the jt9 executable to receive FST4W signals

Note: Since originally posted, WSJT-X v2.3.0-rc2 was released, adding a feature to the "JT9" executable that simplifies this p...

Saturday, September 26, 2020

Revisiting the "Limited Attenuation High Pass" filter - again.

In several previous posts (See: " A Limited Attenuation High Pass Filter " and " Revisiting the Limited Attenuation High Pas...

Tuesday, September 15, 2020

Comparing the "KiwiSDR" and the "RaspberrySDR" software-defined receivers

Updates: The RaspberrySDR schematic and a fork of the source code is now available - see the addendum near the end of this article for comm...

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