Hams are on their own. confined space ham radio For better or worse, amateur radio is a hobby that typically requires a lot of outdoor space. Golfers can tee up on a golf course, and soccer junkies can use public athletic fields, but hams have so such dedicated public facilities…. Read more »
Call now! Operators are waiting! small solar power You’ve probably seen the campy ads hawking small solar power systems and “solar generators”. These ads make some remarkable claims and the manufacturers are deliberately vague on the technical specifications of these products. They further fuzz up the facts with unrealistic depictions… Read more »
A good value for the money never goes out of style. Back in February of 2016 the Off Grid Ham 100 Watts for $300 solar project made its debut. Over four years later it is still one of the most-viewed articles on this website with several hundred hits every month…. Read more »
Revisiting the old school. Most radio amateurs have never even heard of Edison batteries. Edisons been around for over 100 years, and while they enjoyed some early popularity, they more or less left the scene by 1910. Lately though they’ve been getting more attention from the off grid community. So… Read more »
Cold weather changes everything. It’s December, and for most of the USA we are heading into seriously cold weather. Cold has a lot of negative effects on off grid power and amateur radio gear. If you have not properly accounted for cold weather, then your equipment will let you down… Read more »
Revisiting a classic. It’s been three years since I presented an article about the DIY portable DC power pack. It’s still one of the most popular articles here on Off Grid Ham. Almost every radio amateur has some version of this gizmo. Over the winter I had the itch to… Read more »
News Digest is an occasional Off Grid Ham series on developments and news in off grid and alternative energy relevant to radio amateurs. I’ll sort through the geek stuff so you don’t have to! If you come across a news item that would be in interest to Off Grid Ham… Read more »
That day will come. Those who depend on large storage batteries for their off grid needs dread the day they need to be replaced. It’s expensive, time consuming, and potentially dangerous. Common deep cycle flooded storage batteries bought at retailers will last about 2-3 years if used daily and maintained… Read more »
Over on the Off Grid Ham affiliate Google Groups.io forum a reader asked a question about how to properly maintain flooded batteries, also referred to as wet cell batteries. We have addressed this topic before but as a result of recent interest it’s a good time for a flooded batteries refresher course…. Read more »
A mature technology. AC inverters are like other technology in that during the early years they were very expensive and didn’t work particularly well. Over time they were tweaked and improved and today inverters are better and less expensive than their ancestors. I suggest including an inverter in your off… Read more »
If you are an off grid ham, you probably have a gas powered generator. And if you are a conscientious off grid ham, you have at least a few day’s worth of fuel stored. Does gas have a shelf life? Are all types of fuel the same? Are you unknowingly… Read more »
In a recent article we did a deep dive into assembling a portable off grid radio station that was light and minimalist enough to be carried a fairly long distance by one person, but still had enough functionality to be an effective communications tool. That goal necessarily required using QRP… Read more »