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The September 2026 Newsletter Is HereSeptember 7, 2026
The September 2026 Newsletter Is Here
The September 2026 edition of Cap’n Crunch’s newsletter is now live. This month, John shares the story behind TimeTrack Invoice—a simple time-tracking and invoicing app he built with clo...
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Newsletter #8 — September 2026September 7, 2026Newsletter #8 — September 2026
What if a rough sketch, a good idea, and an AI collaborator were enough to build a real app? That is exactly what I set out to discover—and the result is TimeTrack Invoice, a new time-tr...
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John Draper Website Update: WaveWatch, Ham Radio, and AI DevelopmentMay 27, 2026John Draper Website Update: WaveWatch, Ham Radio, and AI Development
The past several weeks have been extremely busy for me as development continues on my new project called WaveWatch. I am not quite ready to reveal all the details publicly yet, but I can sa...
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Understanding Ionosonde and GPS TEC Maps: Tools for HF Propagation MasteryJune 22, 2025
Understanding Ionosonde and GPS TEC Maps: Tools for HF Propagation...
For HAM radio operators, reliable communication—especially on HF bands—depends heavily on the state of the ionosphere. The ability to predict or analyze ionospheric conditions can make or b...
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John Draper | Cap’n Crunch | Tech Pioneer & HAM Radio LegendApril 14, 2025
John Draper | Cap’n Crunch | Tech Pioneer & HAM...
Welcome to the Official Site of John Draper aka Cap’n Crunch Slowly but surely, I’m getting my Prepping act together. I got my Ham general class license call sign KK7YQS (Y...
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Newsletter #2 February 2025: Prepping Journey: HAM Radio, Off-Grid Power & Tech ExplorationMarch 12, 2025
Newsletter #2 February 2025: Prepping Journey: HAM Radio, Off-Grid Power...
Slowly but surely, I’m getting my Prepping act together. I got my Ham general class license call sign KK7YQS (Yankee, Queen Sierra). I have a Yeasu 991A able to use 80 meters –...
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