Tag Archives: prepper

Portable DC Power Pack 2.0

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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 »

The Transmitters of Freedom Should Be Turned Back On!

Where am I going with this? This article will be outside the mission of Off Grid Ham but I hope you’ll stay with me. I’m going to drift away from my usual schtick and use my substantial internet platform to bring attention to this neglected issue. My point can be… Read more »

When It’s Time For New Storage Batteries.

storage batteries

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 »

Flooded Batteries For Off Grid Radio, Revisited.

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 »

You’re Invited to the Off Grid Ham Google Group.

I’ve been wanting to expand Off Grid Ham’s outreach for some time. I thought about starting an internet chat forum, but that would involve very disruptive changes to the website and a lot of ongoing maintenance. A Facebook page was considered too. I had more or less given up on… Read more »

Casting the Net.

      16 Comments on Casting the Net.
HAM RADIO NETS

It should not be this hard. Off Grid Ham reader Jim from Oregon, USA recently emailed to comment about the lack of on air radio nets specifically for preppers/survivalists and off grid hams. That sent me straight to my computer, where a cursory search suggested that he’s onto something. I… Read more »

My Favorite Things.

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Getting back to business. Since the holidays are over and we are in that dull time between New Year and warm weather, it would be a good moment to take stock of where you are with your off grid goals and determine where improvements are needed. If you got money… Read more »

An Introduction to AC inverters.

      3 Comments on An Introduction to AC inverters.

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 »

Portable QRO for Regular People.

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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 »

The Travel Light Portable Off Grid Radio Challenge

A majority of off grid amateur radio involves portable operation with small systems. There are many reasons for this: Many people cannot afford large scale fixed solar; some are held back by homeowner association rules or want to incorporate amateur radio with camping & hiking activities. Other amateurs are motivated… Read more »

Some Great Propagation Calculator Websites.

I always seem to find the coolest stuff when I’m looking for something else! While researching for a future Off Grid Ham article I happened across two on line propagation calculators that can determine what HF bands are best for any time or operating condition. There are many other similar… Read more »

EMP Protection for the Radio Amateur, an Encore.

A follow up to my November 2017 article about electromagnetic pulses (EMP) was not in the plan. Then Off Grid Ham reader “Charles” hit my email inbox with a bounty of information related to this topic that was too good to keep to myself. I’ll respect his request not to… Read more »