DIY ESP32-S3 CYD 480×320 FM radio with SI4732 DSP and touchscreen tuning. High-resolution Arduino receiver project with scan and preset features.
Guide
Master the essentials of amateur radio with the comprehensive guides available at vu3dxr.in. This category offers step-by-step instructions on SDR setup, antenna tuning, and radio operation. From beginner basics to advanced technical configurations, find the practical knowledge and tutorials needed to succeed in your DIY radio projects and communication
Complete Guide to Flight Tracking with RTL-SDR: Multi-Feeding Setup
Have you ever wondered how tracking websites like FlightAware and Flightradar24 get their real-time data? The secret lies in a global network of volunteers who feed aircraft position data using surprisingly affordable hardware. In this comprehensive guide, I’ll show you how to set up your own aircraft tracking station using an RTL-SDR dongle and contribute data to multiple flight tracking services simultaneously.
Compact 40M HF Antennas: Short Dipoles & Short Verticals
Explore compact 40 m HF antennas including shortened dipoles and base-loaded verticals for space-limited ham radio setups. Practical designs enable effective 7 MHz operation in small yards, portable, or restricted installations
GM4JMU Shortened Dipole Antenna: Compact Performance for HF Bands
The GM4JMU shortened dipole uses loading coils to deliver full 40 m band performance in under 10 m span. Ideal compact HF antenna for small gardens, rooftops, and portable ham radio installations.
How to Receive Stunning Weather Images from Meteor-M2 Satellites
Learn how to receive high-resolution LRPT weather images from Meteor-M2 satellites using an RTL-SDR, 137 MHz antenna, and SatDump decoder. Complete guide covering pass prediction, signal reception, and image decoding for satellite enthusiasts
OSPI vs QSPI in ATS Mini Radio: How to Identify Your Flash Interface
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.
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.
ATS Mini vs ATS20+ Technical Comparison: Si4732 Limitations Exposed
Explore alternative firmware options for the ATS-Mini DSP radio, including G8PTN, ESP32-SI4732, and Goshante builds. Unlock enhanced usability, advanced DSP features, and customization beyond the stock firmware
Alternative Firmwares for ATS Mini Radio: A Technical Guide
Explore alternative firmware options for the ATS-Mini DSP radio, including G8PTN, ESP32-SI4732, and Goshante builds. Unlock enhanced usability, advanced DSP features, and customization beyond the stock firmware.
Flipper Zero – A Comprehensive Technical Guide
The Flipper Zero is a portable multi-tool device designed for cyber security professionals, penetration testers, hardware hackers, and radio enthusiasts. Launched through a successful crowdfunding campaign, this compact device has gained significant attention in the security community for its versatility and educational value in understanding various wireless protocols and digital systems.