by Jeremy N2UGS | Feb 26, 2026 | Weekly Net
Meshtastic is an open-source, long-range, low-power communication system that uses LoRa radios to form a wireless mesh network. It allows users to send text messages, GPS locations, and sensor data without relying on cell service or the internet. Each node acts as a... by Jeremy N2UGS | Feb 18, 2026 | Weekly Net
This BARRA Tech Net explores how artificial intelligence is becoming a practical and valuable tool in modern amateur radio. Rather than replacing operators, AI enhances what hams already do by improving signal copy, reducing noise, and assisting with decision-making... by Jeremy N2UGS | Feb 4, 2026 | Weekly Net
DMR, or Digital Mobile Radio, is a digital voice and data standard originally developed for commercial communications but now widely used in amateur radio. It offers clear audio, efficient spectrum use, and the ability to carry both voice and data at the same time.... by Jeremy N2UGS | Jan 14, 2026 | Weekly Net
Tonight’s BARRA Tech Net dives into one of the most powerful and affordable tools available to today’s radio hobbyist: RTL-SDR and SDRTrunk. Whether you are new to software-defined radio or already experimenting with digital systems, this session will show how a... by Jeremy N2UGS | Dec 3, 2025 | Weekly Net
Tonight’s BARRA Tech Net focuses on Software Defined Radio (SDR) dongles, one of the most affordable and versatile tools in modern radio. An SDR dongle, such as the popular RTL-SDR based on the RTL2832U chipset, turns any computer into a wide-band radio receiver...