12,000 miles on 0.2 watt!! Yet another WSPR beacon

Yet another homebrew WSPR beacon. This one is for one band, anywhere from 137kHz to 144MHz. It is fully self-contained and automatic, as it gets time synchronisation from a Ublox GPS. It can be built in a few hours on a breadboard, it's so simple!

Script: https://github.com/prt459/WSPR_GPS_Beacon
Blog article: https://vk3hn.wordpress.com/2021/10/04/20-meters-200mw-12000-miles-wspr-magic/

Видео 12,000 miles on 0.2 watt!! Yet another WSPR beacon канала Paul VK3HN