The biggest problem with the DX Commander Expedition mast is that the top section sits pretty much flush when collapsed, making it awkward and a real pain to grab. This simple hack fixes this probl...

A portable antenna that is taking the world by storm is the POTA PERformer designed by Greg, KJ6ER. You can contact Greg directly and he will provide you with PDF files of his build. My version is ...

Loop antennas are lot of fun to play around with and have lots of advantages for Ham Radio. I made a 20M Delta Loop a couple of years ago. Recently, I built a new 4:1 hybrid balun for it. UPDATE: ...

UPDATE After more field testing, this build was an abject failure! The toggle switch is too close together and I believe the wires capacitively couple together. You can’t adjust the wire legs inde...

I generally hate working with Coax because the braid is a royal pain to deal with. It’s finicky and cumbersome. However, I learned a snazzy way of dealing with it that has made my life 17% better. ...

Without question, the NanoVNA is the MVP of ham radio. There is no other tool so versatile and feature rich for the price. Here’s how to upgrade the firmware to the latest version on Linux. It appe...

This post is a list of build component numbers for quick reference. Ferrite Cores Type 31 Size: 0.870” (21.70mm)OD. Core: 2631801802 [$3.86 in 2025] Size: 1.142” (29.01mm)OD....

I’ve been building a collection of antennas dedicated to QRP. You can get away with so much less weight and space with low power equipment. To that end, I built a 20M dipole just for QRP. The Ba...

What’s the difference between Baluns and UnUns? VIDEO - Understanding 4:1 Baluns and UNUNs for Amateur Ham Radio Antennas 73 de VE5REV

AI is incredibly amazing technology. It is so highly sophisticated that it’s scary. What if we leverage that for ham radio applications? Grok I use Grok, made by x.AI. It is absolutely mind blo...