It's all about technology

I needed a slightly more powerful dummy load than the one I built previously (you can check it out here: https://techestigate.com/250w-rf-dummy-load/). This project focuses on building a high-power 50 Ohm RF dummy load. As usual, I tried to reuse as many parts as I already had on hand, although I still needed to purchase non-inductive resistors. I picked up four 50 Ω, 250 W resistors on eBay for…

I needed a battery for my camping trips and portable ham radio activities, so I decided to tackle that problem once and for all. LiFePO₄ batteries have been on my radar for a few years, but their price has always held me back. At one point, I even bought a “brand-new” battery — but that story didn’t end well. It turned out to be a Trojan Horse in a battery casing. There’s a full article about…

What to look for When buying LiFePO4 batteries, you should beware of suspiciously low prices because cheap and counterfeit models can pose serious safety risks and fail to deliver the performance advertised. Although authentic LiFePO₄ batteries demonstrate high safety standards and long operational lifespans, counterfeit or low-grade alternatives frequently incorporate substandard materials and…

Amateur radio, often referred to as HAM radio, is a hobby with a rich history and a vibrant community of enthusiasts worldwide. It offers a unique blend of communication, technical skill, and adventure that has captivated individuals for decades. Whether you’re a seasoned operator or someone just discovering this fascinating world, exploring HAM radio can be a deeply rewarding experience. You…