klotz: rf* + ham radio*

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  1. "This document is aimed at the Arduino developers, radio experimenters, hobbyists and anyone interested in building a receiver based on the Si473X IC family from Silicon Labs. This project is about an Arduino library for the SI473X BROADCAST AM, SSB and FM/RDS RADIO RECEIVERS. Frequency ranges of AM and SSB modes are 150kHz to 30MHz, and FM mode is 64 to 108 MHz."

  2. Nick Farrow has created MeshBoard, a text-based bulletin board system inspired by the BBSes of the 1970s and 1980s, running on a Raspberry Pi using the Meshtastic mesh network. The project allows for menu navigation and interactive games like Tic Tac Toe and an Escape Room, with no internet required. It leverages Python to create a modular and easily extensible platform, with plans to expand features such as file transfer over the Meshtastic network.

  3. GUI application for using HackRF as a spectrum analyzer with features like optimized settings, easy retuning, peak/persistent display, and more.

  4. This article provides a guide on how to receive weather satellite images using SatDump.

    2024-09-23 Tags: , , , , , , by klotz
  5. This blog post announces the release of Flipper Zero firmware version 1.0, highlighting major new features like dynamic app loading, a redesigned NFC subsystem, JavaScript support, and various system improvements.

    2024-09-10 Tags: , , , , , , by klotz
  6. A new study published by Australian government researchers and Swinburne University found that good quality studies show no effect from radio waves on plants and animals, while poor-quality studies show an effect.

    2024-09-02 Tags: , by klotz
  7. A simple explanation of waveguides, transmission lines, and related topics using real-world examples and minimal math.

    • Article by Stephen Cass for IEEE Spectrum Introduction of Quansheng's UV-K5 handheld ham radio
    • UV-K5's firmware stored in flash memory, allowing rewrites using USB programming cable A growing community of hams adding software-based improvements and features Examples of mods include graphical spectrum analyzer, text messaging between K5s, improved AM signal reception, and custom start-up messages Web-based patcher/flasher allows easy installation of mods without exceeding memory limit Potential risks of abuse and reliance on ham radio's honor system Future possibilities of increased in-radio processing capabilities and app-like functions
    2024-08-05 Tags: , , , , , , , , , , by klotz
  8. 2019-08-23 Tags: , , , by klotz
  9. 2019-07-30 Tags: , , , , , , , by klotz

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