Retevis Ailunce HD2 ISRU Frequency Expansion
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.
Articles by Julian OH8STN
N9SAB Antenna Care Package Unboxing
N9SAB sent over a care package filed with lightweight, efficient, stealthy antennas for portable and fixed station ham radio use. Let’s unbox them together!
My Off-Grid & Grid Down Comms Energy strategy
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.
Impromptu QRP JS8Call QSO with Icom IC-705
Radio enthusiast details QSO with GW4OZU using Icom IC-705, demonstrating JS8Call’s efficacy in low-power HF communications.
Retevis Ailunce HD2 AES256 Encryption clarification
Summary: Retevis clarified AES128/AES256 encryption for the HD2 and confirmed, IT’S COMING!
LiFePO4 Battery deals for March 2024 | Power Queen
March 2024 Power Queen promotions offer discounts for large LiFePO4 batteries in the US and Europe, plus a 5% discount with code…
Retevis Ailunce HD2 DMR Radio is here!
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 […]
HF Propagation predictions
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.
Ruuvi Sensors & Gateway | Off-Grid Ham Shack
Integrating the Ruuvi Gateway and sensors to remotely monitor indoor/outdoor temperatures, ensuring safe temperatures for lithium battery charging.
Off-Grid Ham Shack
Keeping the Ham Shack & my Lithium batteries warm in winter
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.