Real World Constraints

It's a Training Ground for Engineers (And We've Been Ignoring It) Let's drop the nostalgia and say something uncomfortable: If you think ham radio is just people talking into microphones, you're not just wrong - you're overlooking one of the most hands-on, intellectually rigorous engineering playgrounds still accessible to individuals. Because amateur radio isn't about conversation. It's about understanding how information survives reality. And reality is hostile. Signals Don't Care About Your Abstractions Modern software engineers live in a world of clean abstractions: APIs work (until they don't), packets arrive (until they don't), networks are "just there." ...

Related articles: Proper Single Transistor LNA for HF A Sustainable Radio Design? Design We are finally going to build a QSD RX! Here is the rough schematic I am thinking about: References MC1496 Information HSDAOH on RP2350 (see internal_adc section) This way we can continue using RP2350 instead of moving to something like STM32H5 immediately PicoRX Simulations (also for DSP code)

Shipping hardware internationally is a hard, labor intensive, and overall a frustrating process - especially more so these days. Here is our plan to supply the DDX to customers: Make the hardware files free / low-cost. The users will be able to order fully assembled boards from JLCPCB or other vendors on their own. Required a small licensing fee for the software firmware part. This is how we get to keep the hobby self-sustaining! ...