The image above shows repeated waves of one frequency being emitted by the radar gun in the police car and repeated individual waves of a shorter frequency being returned by the "moving car."
More importantly, police radar guns confirm Einstein's Second Postulate, which says,
“light is always propagated in empty space with a definite velocity c which is independent of the state of motion of the emitting body.”Yet many many college text books claim that is NOT Einstein's Second Postulate. They falsely claim that Einstein's Second Postulate says that light travels at c independent of the emitting body and any observing body. Radar guns clearly demonstrate every day that that is not true. Radar guns wouldn't work if the target received photons at c. They work because moving targets receive photons at c+v (or c-v) where v is the speed of the target.
I'm writing about this because I have a paper about Radar Guns and Einstein's Theories available at this link: http://vixra.org/pdf/1806.0027v6.pdf and I'm looking for people's comments about it.