What is the wave source of a radio wave?
The circuit of electronic components that generates the alternating current
that flows to the transmitting antenna.
An EM wave is caused by an energy source, such as something as big as a supernova or something as small as an electron changing in speed. I would say the change in the energy level of the energetic particle that causes the wave determines the frequency of the wave. +++ Whilst you may be right about the quantum physics, the frequency of the wave is that of the energy source, be it in a…
A radio wave is an electromagnetic wave that can convey information from one point to another. This information can be modulated in many different ways. Do not confuse "radio wave" as applied to the electromagnetic wave with "radio wave" as applied to the specific modulation of audio information, such as music. Similarly, "tv wave" is an electromagnetic wave that is modulated to convey television information, which includes both audio and video.