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ESPWSPR - WIFI connected WSPR Transmitter field test
DIY, WSPR Transmitter 30dBm HF 40Meter Band
WSPR beacon transmitter
ZachTek WSPR Transmitter - Overview - Pretty Cool.
Homebrew 20m WSPR Beacon: Part 2 Initial on Air Tests
Stormy weather projects - WSPR transmitter
Transmitting WSPR with an LED! No radio required.
WSPR маяк
ADX UnO - Testing TX and RX on WSPR
12,000 miles on 0.2 watt!! Yet another WSPR beacon
Работа в WSPR перед днем радио
Homebrew 200mw wspr beacon on a Raspberry Pi.
