Indeed. But he didn't mention how he connected the dummy load to the radio. Dummy loads have usually a standard antenna connector and are meant to be attached d

Indeed. But he didn't mention how he connected the dummy load to the radio. Dummy loads have usually a standard antenna connector and are meant to be attached directly to the radio or through an non-irradiating cable. So, my guess is that, by using the dummy load, he disconnected the actual antenna: the "dipole" made by the wires between the radio and the dessert