From radio signal to corresponding photons

[somega]

Let's assume the following sine signal sent by a low frequency (100 kHz) transmitter.
I think with the information that the sending power is 1 watt and the starting phase is 0 the signal is fully described.



Are the following assumptions correct?:

1. The frequency of all photons leaving the transmitter at any time is 100 kHz.
2. At all points A, B, C, D, E the number of photons leaving the transmitter are the same (this is the intensity).
3. The phase of the photons leaving the transmitter at points A, B, C, D differ.

 

[PeterDonis]

I think with the information that the sending power is 1 watt and the starting phase is 0 the signal is fully described.

If you are using classical electrodynamics, then yes, you're right. But if you are using classical electrodynamics, then the concept of "photon" is meaningless and so are all three of your assumptions.

If you are using quantum electrodynamics, so that the concept of "photon" has meaning (although you still need to specify what meaning you are giving it, since it can have more than one meaning), then the information you give does not fully specify the signal. You need to specify the quantum field state.

So before we can go any further, you need to decide whether you want to use classical electrodynamics or quantum electrodynamics.