I’m somewhat mathematically challenged so forgive me.
I’m trying to get a handle on the speed of the “radio” signal vs. the speed of light.
“I’m trying to get a handle on the speed of the “radio” signal vs. the speed of light.”
They’re exactly the same, because radio waves and light waves are just different frequencies of photons. All photons travel at the speed of light (in a vaccum), whether it’s visible light, microwaves, radio, infrared, etc.