Electromagnetic radiation always and exclusively consists of photons.
The photons in radio waves are polarised. They are synchronously aligned with their electric and magnetic field components.
From the measurable field components of the radio wave, its components - the photons - are deduced:
<aside> 📌 Presumtion: Each emitted photon oscillates in its progressive motion with its electric and magnetic field components. ↓14↓
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TL;DR Emission and absorption of photons
TL;DR Red / blue shift of the photon
Own source: What are photons, EM radiation and EM waves