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mklimenko.github.io
| | acidbourbon.wordpress.com
5.4 parsecs away

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| | Video Appetizer https://youtu.be/XsFSDM1pgMA TLDR I built a shortwave radio receiver from scratch using only cheap and easily available components, i.e. standard transistors, op-amps and 74xx logic chips. No typical radio parts - no coils, no variable capacitors, no exotic diodes. This project is easy to build and gives you a hands-on experience with radio technology...
| | tbspace.de
5.1 parsecs away

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| | QO-100, also known as Es'hail-2 is a geostationary amateur radio satellite. It can be used by large parts of the world, including Europe, Africa, (parts of) South America and Asia. The satellite works as a linear transponder. It receives a specific range in the 2.4 GHz (13cm) band and sends it back to earth on 10 GHz (3cm). In order to generate such a 2.4 GHz signal and transmit it to the satellite conventional radio technology with transverters could be used. I chose a different route and planned a fully software-defined setup. This has many advantages: - Cost (PlutoSDRs can be bought for ~120?) - Low power consumption (laptop, SDR, amplifiers), ideal for portable usage - No SSB transceiver needed - Software DSP processing for very clean signals - I/Q sampl...
| | tomscii.sig7.se
5.2 parsecs away

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| | [AI summary] This is a detailed account of the development and construction of a DCF77-controlled clock with additional features like temperature and humidity sensing. The author describes the design process, hardware components, and software implementation, including the use of a simulator for development. The project includes a bill of materials, cost analysis, and future improvements. The source code and hardware design are shared under an open license.
| | blog.elevendroids.com
32.3 parsecs away

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| [AI summary] A tutorial on configuring WiFi on a Raspberry Pi using specific hardware and software steps.