Learn the difference between OSPI and QSPI flash interfaces in ATS-Mini radios and how to identify your hardware variant. Practical checks using chip markings, PCB traces, and firmware logs to ensure correct firmware flashing.
Reception
The Reception category focuses on pulling weak signals out of the noise using smart antennas, low‑noise front‑ends, and modern SDR tools. It covers topics such as HF broadcast listening, weather satellite reception on 137 MHz, ADS‑B and aircraft tracking, WebSDR resources across India and Asia, and general SWL (shortwave listening) techniques. You’ll find practical antenna designs, preamplifier ideas, and receiver setups that improve copy without requiring huge towers or expensive commercial equipment.
AM Radio into an SSB Receiver with a Simple BFO Circuit
Learn how to convert a standard AM radio into an SSB receiver using a simple BFO circuit. Step-by-step guide to receiving single sideband signals on your homebrew or vintage radio.
Active AM Band Antenna for Better Reception
Improve AM signals! Build an active am band antenna with this simple circuit. Boost weak signals with JFET input & multi-stage amplification. Easy DIY
Simple Receiver S-Meter Circuit for Your Radio
Stop guessing signal strength! Build this easy, low-cost S-Meter circuit to give your homebrew radio a professional visual indicator for incoming signals and tuning.
Build Your Own Two Transistor Radio: A Simple DIY Project
Do you love electronics and want a fun, beginner-friendly project? Build a two transistor radio! This classic DIY project, featuring simple components, gained popularity years ago and still teaches radio technology effectively. Let’s explore how you can create your own two transistor radio easily. What is a Reflex Circuit? A reflex circuit cleverly reuses one […]
Crystal Radio Explained – How to Build Your Own No Power Radio
Discover the magic of “no-power” radio! Step-by-step instructions on building a crystal set that runs entirely on the energy of the radio waves it receives.
LILYGO T-Embed ESP32 SI4732 Radio: In-Depth Technical Analysis & User Review
In-depth review of the LILYGO T-Embed ESP32-S3 SI4732 multiband DSP radio covering hardware architecture, reception performance, firmware ecosystem, and real-world usability for makers, SWL, and ham radio enthusiasts.
Signal Booster enhancing RF Performance of radio receiver
If your receiver needs a higher level of signal across the entire matching network, this signal booster circuit can furnish the solution. This Signal booster circuit, built around a few transistors and support components, offers an RF gain of about 12 to 18 dB from about 100 kHz to over 30 MHz
Simple Signal Grabber Circuit for shortwave reception
If you’re working with RF circuits and need to improve signal reception or create a compact antenna solution, the Signal Grabber circuit is an excellent project to tackle. This clever design creates a short pull-up antenna that delivers impressive performance in a small package. The Signal Grabber is a specialized RF circuit designed to create […]
Simple DIY Active Antenna for Crystal-Clear Reception
Tired of static on your AM or shortwave radio? Do you struggle to hear distant stations? There is a simple fix. You can build a special antenna that makes radio signals much stronger. This guide shows you how to build a DIY active antenna. It is a fun project that can give you crystal-clear reception. […]