How does a stormscope measure distance to lightning cell
It depends on the model The WX-7, 8, 9,10,11, &12 only measured the amplitude of the 50 Khz component of the lightning strike. With the WX-1000 the used not just amplitude but also 5 different parts of the 50 Khz like pulse rise time, pulse witdth etc with the more modern Stormscopes like The WX-950 and WX-500 they take measurements if at least 11 different frequencies. As the processors have become smaller and faster the technology has allowed a more accurate ranging.