Ham Radio 4 min read How to Build a Butterworth Bandpass Filter for Ham Radio A step-by-step guide to designing and building a double-tuned Butterworth bandpass filter for any amateur radio band Read More →
Gear 4 min read Radioddity HF-010 Review Real WSPR Data on 20m and 40m The Radioddity HF-010 is the follow-up to the popular HF-009, but is it actually better and is the $40 price bump worth it? Read More →
Antennas 4 min read Your Antenna Review Sucks Here Is How to Get Real Data Most antenna reviews are just vibes, here's how to use WSPR, an automated antenna switch, and AI to get actual numbers that prove which antenna wins. Read More →
Ham Radio 6 min read Move Over FT8 Theres a New Digital Mode Built for Speed FT8 works great when signals are weak, but when the band is hot and the pileup is packed, all that waiting around costs you. FT2 is the speed mode built to fix that. Read More →
Projects 4 min read It's Alive A Classic CB Shell With a Modern Brain A dead CB radio from the 70s gets a secret brain transplant and now it does things its designers never dreamed of. Read More →
Gear 4 min read Building a 20M Portable Vertical Whip from AliExpress Parts I built a complete 20-meter portable vertical whip for $23 using AliExpress parts, and it kept up with my permanent antenna better than I expected Read More →