WSPRTxisWSPRsignalsourceforyourtransceiver.
YouneedradiotransceiverwithVOXenabledtousethisfreeapp.
Setyourcallsign,gridlocator,transceiverpowerlevel.AdjustTXframing(minutes)andTXfrequencyoffset.Andpressstart.
Youneedanamateurradiolicensetosendsignals.