Summary: Jonathan Naylor, G4KLX, pioneered the opening, to amateur radio operators, of D-Star and later other digital repeater modes including DMR and Yaesu system fusion by writing software that could be implemented on Arduino and Raspberry Pi hardware for the creation of multi-mode repeater and hot-spot controllers. G4KLX shares his ham radio story with Eric, 4Z1UG, in this QSO Today.
