WSPR Desktop transmitter

GitHub - HB9VQQ/WSPRBeacon: Worldwide Network of WSPR Beacons

And The Meek (Signal) Shall Inherit The Earth: Testing Propagation With WSPR & FT8 – KM1NDY

The $50 Ham: A Simple WSPR Beacon

The WSPR-TX XP Plus is a standalone all band WSPR transmitter with built in GPS for the radio amateur experimenter.This Plus version is pretty much

WSPR-TX XP Plus Transmitter | ZachTek

A Little WSPR Beacon (Aren't They All Little?) – Dave Richards AA7EE

ZachTek WSPR Transmitter Setup 1 (Quick Setup)

WSPR Desktop transmitter

WSPR-TX Mini Transmitter (Needs components, read text)

WSPR HF Desktop Transmitter from Zacktek - 136 kHz to 50 MHz