James Wesley, Rawles (JWR) (he like to use a comma between given names and his surname) recently updated an evolving article on investing, ending it on a topic that resonates with me – education. INVESTING IN YOUR EDUCATION I’d like to end this essay with an aside: In my estimation, there is only one intangible […]
This tutorial explains how to modify Retevis Ailunce HD2's band for different IARU regions and outlines the advantages of DMR in ham radio, including text messaging.
The off-grid ham shack is fully energy self-sufficient, utilizing solar, wind, and other power sources, with a focus on low current devices for sustainable communication.
The Retevis Ailunce HD2 is finally here! Here’s a short preview of the highlights. A few weeks before this post was published, Retevis reached out [...]
An amateur radio operator explores how detailed weather data could predict HF band openings, leveraging temperature, pressure, and historical contact information while considering the impact of cold on equipment conductivity.
Integrating the Ruuvi Gateway and sensors to remotely monitor indoor/outdoor temperatures, ensuring safe temperatures for lithium battery charging.
Off-Grid Ham Shack
To protect lithium batteries from cold while charging, a video/blog showcases using a Chinese diesel heater in an off-grid ham shack. It's vital to keep batteries above freezing, a lesson learned from electric cars in winter. The video details the installation and operation of a 3kw Vevor diesel heater, which also powers up using the ham shack's LiFePO4 batteries, maintaining ideal temperatures for both batteries and equipment.
This video shows charging Power Queen LiFePO4 batteries with a vertical wind generator and discusses off-grid ham shack power storage solutions, including during non-solar conditions.
The Retevis Ailunce HD1 GPS, rated IP67 for dust and water resistance, surpassed expectations in extreme weather testing at -30°C, showing no signs of battery, LCD, or condensation issues after being left outside for three days. The robust HD1 performed admirably, suggesting it's a serious contender in rugged radio options.
This tutorial demonstrates how to connect two 12-volt batteries in parallel using Power Queen 12.8V, 100Ah, 1280Wh lithium iron phosphate batteries. The provided YouTube link offers a detailed guide. For related content, explore building a solar-powered Off-Grid Ham Radio Station and information on radio-friendly MPPT charge controllers and off-grid communications.
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