[FrontierPsych]

Nah. How would any civilization be able to distinguish it from any other tiny piece of material moving through space.

As far as radio waves go, no way.

Anything that we have sent out from Earth is indistinguishable from background noise of the universe.This propagation follows the inverse square law, which states that the intensity of the wave decreases as the square of the distance from the source increases. If you double the distance from the source, the intensity of the radio wave decreases by a factor of four. This means that the wave disperses and weakens as it travels away from its source. Its intensity diminishes according to the square of the distance.