ham-radio

(4 articles)

DIY Field Repeater: Building a $20 Tactical Communication Relay

A comprehensive guide to constructing an ultra-low-cost DIY radio repeater for field communications, exploring the distinctions between duplex and simplex modes, operational settings, power optimization, and transmission security considerations.

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Building a $60 Ham Radio Data Hotspot with Baofeng UV-5R and Raspberry Pi Zero 2W

A hands-on guide to building an ultra-affordable ham radio digital transceiver and Wi-Fi hotspot using a Baofeng UV-5R, Raspberry Pi Zero 2W, and DigiPi software for APRS, Winlink email, and digital mode communication.

ham-radio raspberry-pi digipi aprs winlink pat uv5r offgrid-communication emergency-comms open-hardware

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The Radio Shack: Amateur Radio License Preparation (2022–2026): A Complete Guide for Aspiring Operators

A detailed, structured overview of the U.S. Amateur Radio licensing process—covering the Technician License, HF bands, exam preparation strategies, and study resources—for technically inclined learners entering the world of ham radio.

ham-radio amateur-radio technician-license hf-bands radio-communications hamstudy exam-preparation open-education

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Baofeng UV-5R Mini Review: Compact Power with Caveats

A detailed technical and practical review of the Baofeng UV-5R Mini, evaluating its size, spectral purity, usability, and reliability under FCC standards. Includes comparisons, programming insights, and antenna recommendations.

baofeng uv-5r-mini ham-radio fcc-standards spectral-purity vhf uhf radio-programming amateur-radio