digiPi is a software system that is based on Linux for amateur radio digital communications. Its primary function is to make various amateur radio digital modes easily accessible via Wi-Fi through a standard web browser. It simplifies amateur radio digital modes operation by providing a pre-configured, bootable image for a Raspberry Pi. It supports a … Read more
Nowadays, we use more and more electronic devices in daily life and work—like smartphones, tablets, laptops and smart wearables. Our need for quick charging is growing fast. Some people may always feel they don’t have enough charging ports on the desktop. To fix this issue, here comes a project, which is an open-source DIY desktop … Read more
Background: For amateur radio operators engaging in Portable Operations in the Parks (POTA) and Summits on the Air (SOTA), reliable, efficient power is the backbone of successful activations. These activities often take place in remote, off-grid locations where solar power becomes a vital energy source. An MPPT (Maximum Power Point Tracking) controller is not just … Read more
When doing POTA or SOTA activations, I prefer the vertical antennas. That says I don’t have to bring a long enough antenna mast that could support my wire antennas. For example, an end-fed, it’s a good antenna, but you need a pole or a tree to set it up, in horizontal, vertical or in V-Shape … Read more