Uploaded June 2026 | Updated September 2026, 2 weeks ago

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Barb WB2CBA is a civil engineer by trade and an open source QRP designer by passion. Every circuit he's created has gone straight to GitHub with no paywalls and no kits he controls exclusively, and builders around the world have taken notice. In this episode Barb walks us through his major designs from the uSDX collaboration to the Pebble HF, talks about his experience at Four Days in May, and shares what it feels like to see strangers around the world building circuits he designed and released for free.

If you're into QRP, digital modes, or homebrew radio, this one is worth your time.
GitHub: github.com/WB2CBA
Pebble HF: pebblehf.com

Join us as we explore how you can get involved in portable radio, QRP, and more in this episode of the All Portable Discussion Zone (AP/DZ). Every aspect of portable operations is covered in this biweekly podcast, from news and gear to achievements, the workbench, contests, awards, and beyond.

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