Archive for date: October 28, 2009

Audio processing for amateur radio voice communications…

October 28, 2009 | Amateur Radio | By: Mark VandeWettering

This is just a brief note to myself to archive, well, what amounts to a single command that processes an audio file, but to stand as a placeholder for an interesting topic that I know virtually nothing about. 🙂 Here’s the basic idea: Amateur radio SSB communications are limited to narrow bandwidths (around 2.7khz is […]

Some interesting new (to me) radio techniques…

October 28, 2009 | Amateur Radio | By: Mark VandeWettering

The Knightsqrss mailing list still intrigues me, although my own qrss beacon has been off the air for a while (I’m trying to get around to homebrewing its replacement, but have been distracted by other facets of life for a while). Recently, Eddie G3ZJO offered this rather interesting circuit which I scratched my head about […]