Portable Power: Why simultaneous charging & discharging?
We do a lot of work with portable power on the channel and on the blog, yet there isn’t a day passing, where someone doesn’t […]
Articles by Julian OH8STN
BesTech 50A 4S LiFePO4 BMS
I promised to update all of you when the hi-current BMS board for lithium iron phosphate batteries arrived. Well today I received the BesTech 4S […]
Building blocks of a Portable Solar Generator
I get lots of related questions about the battery pack builds, the solar panels, and charge controllers we see on the channel. There seems to […]
DIY PowerFilm Cables & Connectors for Extreme Conditions
Now that I have the 20 watt PowerFilm F15-1200 for casual radcomms, qrp hiking, …, and FM16-7200 for the solar powered field station, I thought […]
Telescopic masts – Solar Powered Field Station
The first of two telescopic masts have arrived. I’ll be using the telescopic masts for two different antennas, on deployment with the solar powered Field Station. Naturally and […]
Getting started with Amateur Field Communications EP01
Hello operators. After a couple of angry emails, I decided to publish the episode notes for: Getting started in Amateur Field Communications. ☺ Honestly I […]
Lead Acid & AGM Batteries are a No Go!
Today while sitting here working on a video about portable Comms, I received a question from the operator asking me about AGM batteries for hiking. […]
All WX Field Station Original Concept
It’s taken some time to get off the ground, but I’m happy to announce the All Weather Solar-Powered Field Station project. The All Weather Solar-Powered […]
DIY LIFEPO4 Power for Ham Radio Update
Hello operators. I thought I’d share a couple of updates with you on the 10Ah version of the DIY lithium iron phosphate power project. Heatshrink […]
Amateur Comms & Off-Grid Power Post Disaster
The loss of grid-tied power and communications in places like Puerto Rico & Dominique, shows us the importance of unconvintional strategies for amateur field comms […]