It’s always some variation of “How big of a battery do I need to run my (fill in the blank) radio?” It comes up a lot, not just in my email but also on the various forums and blogs I visit. The question is too open ended and comes with… Read more »
So you’ve had your fun with small single solar panels and are ready for a larger multi-panel system that can handle beefier loads. Hopefully you’ve read previous Off Grid Ham articles and have your system all planned & spec’d out. There’s one important detail we haven’t covered on this blog… Read more »
Amateur radio is full of rules. Many of them are unwritten, others are quite clear. Some rules are not about manners or operating protocol, but instead were created for the very practical purpose of safety and standardization. NFPA-70, also known as the National Electrical Code, is the accepted standard of… Read more »
Considered obscure & expensive technology less than a decade ago, lithium batteries are are all grown up now and can be found in pretty much everything. Even the cheap $29.00 off brand handheld radios come standard with lithium batteries. Often forgotten in the mix is absorbed glass mat (AGM) batteries…. Read more »
Anyone who has been into ham radio even for a short time probably has at least a modest assortment of tools and test equipment. But jumping into the off grid world is its own unique situation requiring a few specialty tools that commercially powered hams don’t need. If you’re new… Read more »
Many amateurs badly want off grid capabilities, but cite financial concerns as the main barrier. Can off grid amateur radio be done on the cheap? The answer is subjective, depending on how one defines “cheap” and how much power is needed, but in general, yes, it’s doable and I’m going… Read more »
Based on reader comments and what I see around the internet, the off grid amateur radio community seems to be of the mindset that there are only two real options for solar energy: Large, expensive arrays that produce a lot of power but are permanently installed, and small inexpensive panels… Read more »
Inexpensive gas generators are a big favorite in the amateur radio community. Everyone seems to love these effective albeit cheaply made power plants! As they became more popular, the law of averages kicked in and there was an unfortunate but not unexpected increase in accidents and deaths related to small… Read more »
This is a very exciting time of changes for off grid and alternative energy. The cost of established systems is coming way down and many new discoveries are in the pipeline. For sure, a lot of emerging off grid technology is highly theoretical and may never appear on the end… Read more »
The off grid amateur radio world seems to revolve around solar. There’s a good reason for that: Solar has become easier, less expensive, and the required equipment is relatively hands off once it is installed. The other options have shown incremental improvements as well, but none have matched solar in… Read more »
Thanks to advances in technology, off grid power is a lot cheaper and easier than in the past. One area that barely changed for decades was generators. Since the time of Edison, it was straightforward: A mechanical power source turns a magnet inside a copper coil and creates electrical current…. Read more »
Storage batteries are the “gas tank” of any off grid power system. When the sun isn’t shining or the wind isn’t blowing, batteries make up for the deficit. The only real alternative to storage batteries is a mechanical generator, which of course needs fuel. Since constantly running a generator isn’t… Read more »