2026-04-01 Ralph’s Technical Trawl – April 2026

To all who pursue the technical aspects of this wonderful hobby, these two surnames are members of a standard lexicon: George Simon Ohm and Andre Marie Ampere.

2026-03-01 Ralph’s Technical Trawl – March 2026

AI Noise Filtering — A New Frontier in Amateur Radio Audio. For decades, Amateur Radio operators have relied on traditional analog and more lately Digital Signal Processing (DSP) tools to tame some of the noise that creeps into their transceivers. AI-based filtering takes a different approach.

2026-02-02 Ralph’s Technical Trawl – February 2026

The Pitfalls of everyday AI: As a follow-up to my January column, I’ll  share three anecdotes from my experience interacting with AI on highly technical subjects and how it can get confused and get some things downright wrong.

2026-01-03 Ralph’s Technical Trawl

Can AI be your “virtual Elmer”?  Amateur Radio has always thrived at the intersection of curiosity and technology. Think of all the major technical achievements in the hobby from the earliest vacuum tubes to transistors to integrated circuits, and from homebrew receivers and…