2 ms·

I really cannot get my head around it. What is "strong" in a signal? What physical variable is stronger? I assume "strong" or "more power" means that the signal

• monadgonad 7y ago
  The amplitude of the wave is bigger to begin with. I think the waves in water analogy is suitable here: drop a stone in water and there'll be very big ripples just around the point where it drops, but they'll get smaller the further out they are. Drop an even bigger stone, you'll get bigger ripples. That's power.
• spapas82 7y ago
  No, the attenuation is exactly the same no matter the power and is analogous to the square of the distance. So a signal that has power X in a point 10 meters from the source it will have X/100 20 meters from the source. The analogy of the waves that another comment mentioned is a nice one (since we talk about EM waves). Another thing that may help you understand that more power means that the electrical charge to the protons/electrons in the air where the EM field is transmitted will also be more.
  • rambojazz 7y ago
    Thank you.