This is just so cool. Scott KQ4AOP has successfully homebrewed a ham radio receiver. He used the circuit Dean and I developed (with a lot of input from Farhan and others) for the High School receiver project. But Scott has had more success than any of our students. And I think he has had -- in a certain sense -- more success than any of us. After all, how many of us can say -- as Scott can -- that he used a homebrew receiver that he made to listen -- for the very first time -- to amateur radio signals? Scott writes: "Those first sounds were my first time ever hearing any Amateur Radio first hand!"
In the video above you can watch Scott tune the entire 40 meter band and a bit beyond. You hear CW at the low end. Then FT-8. Then SSB. Up just above the top of the band I think you can hear our old nemesis Radio Marti. And this powerful broadcaster is NOT breaking through on the rest of the band. FB Scott. Congratulations.
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Bill,
Bill and Dean - Thank you for sharing and documenting this receiver. I greatly appreciate you publishing the circuit, class notes, and build videos. That got me 75% to completion.
I feel blessed that both of you chipped in and encouraged me through the troubleshooting to finally getting the receiver to start “breathing RF”.
Those first sounds were my first time ever hearing any Amateur Radio first hand!