Hi there, and welcome!

I’ve always been drawn to how things connect — whether it’s radio signals reaching across continents, software development, or airplanes moving safely through the sky. This curiosity led me to a career in the air traffic control (ATC) and air traffic management (ATM), where technology and communication meet in complex, ever-evolving ways.

As an amateur radio operator since 1993 (callsign ON4FF), I enjoy the challenge and teamwork of radio sport contests, including events like the CQ World Wide and CQ WPX.

This site is where I share a few of the projects, experiments, problem-solving adventures and ideas I’ve been working on — scroll down to explore some highlights.

Filip Jonckers ON4FF