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open-hardware

(2 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.

radiorepeaterdiymeshtastictranssectactical-communicationsopen-hardwareham-radiofield-techoffgrid

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-radioraspberry-pidigipiaprswinlinkpatuv5roffgrid-communicationemergency-commsopen-hardware