Powering a Ham Radio with USB Power Delivery

A while back, I built a cable to power 12V devices (in my case a Kenwood TH-D74 HT) using the QuickCharge standard available in some USB power adapters. This allowed me to use a USB charger to charge my HT rather than bringing a dedicated wall wart which helped save...

Arduino-Based Intervalometer for DSLR

I originally made this intervalometer to photograph the 2017 total solar eclipse. I wanted to make a portable and simple intervalometer out of parts I had laying around. I had a small enclosure with a front panel cut out for a keypad, LED, and switch from an old...

Shorty Arrow Satellite Antenna

After seeing a few people on Twitter with a a shortened Arrow Antenna for satellite operations (colloquially called a “Shorty Arrow”), I decided to try to build my own. Rather than three elements on 2m and seven elements on 70cm as with the regular Arrow...