Tuesday, June 23, 2026

Reverse Beacon Network: The Ultimate Guide for Ham Radio Operators

Reverse Beacon Network: The Ultimate Guide for Ham Radio Operators: Discover how the Reverse Beacon Network revolutionizes amateur radio by providing real-time signal reports. Learn how RBN works, its benefits, and how to use it

Thursday, June 4, 2026

Master Ham Radio Guides & Tutorials

 This page brings together in‑depth Ham Radio guides, tutorials, and how‑to articles from DXR Electronics Bits—covering SDR, DRM, propagation, digital modes, receivers, and practical operating techniques, without any news or project‑build posts. SDR, DRM & Reception Tutorials Receive DRM with HDSDR and DREAM Decoder Using RTL‑SDR Build a complete DRM receive chain with an RTL‑SDR 

Tuesday, June 2, 2026

GM4JMU Shortened Dipole Antenna: Compact Performance for HF Bands

GM4JMU Shortened Dipole Antenna: Compact Performance for HF Bands: Compact 40m Shortened Dipole antenna design using inductive loading coils for space-limited amateur radio installations, construction and performance details

Friday, May 15, 2026

Slim-Jim Antenna for FM Broadcast Band reception (88–108 MHz)

The FM Slim-Jim antenna is a proven and efficient vertical antenna design widely used in the VHF range. Originally derived from the J-Pole, this antenna offers excellent omnidirectional coverage, low angle radiation, and simple construction. The diagram shown here illustrates a Slim-Jim antenna optimized specifically for the FM broadcast band from 88 MHz to 108 MHz, making it suitable for FM transmitters, community radio stations, and high-quality FM reception. This particular design, credited to YY5RM, provides precise dimensional data that allows accurate tuning across the entire FM band.

FM Slim-Jim antenna

Slim-Jim Antenna for FM Broadcast Band reception (88–108 MHz)