Does the Doppler Effect effect radio waves hitting a moving car (ie the radio receiver)?

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Does the Doppler Effect effect radio waves hitting a moving car (ie the radio receiver)?

2007-06-30 08:09:44 · 3 answers · asked by new to this all 1 in Science & Mathematics ➔ Physics

3 answers

Yes, but not enough to have to tune the radio frequency. It requires mixing the signal from the local oscillator that created the RF in the first place to detect the shift. That's how police radar works.

2007-06-30 17:43:12 · answer #1 · answered by Dr. R 7 · 0⤊ 0⤋

sure. However the frequency shift is so minute that your radio reciever ignores it.

the doppler effect is how radar guns work after all

2007-06-30 08:18:04 · answer #2 · answered by Sir_Weatherby 2 · 0⤊ 0⤋

Yes it does. It's the same process as "red shift" in astronomy.

2007-06-30 08:44:44 · answer #3 · answered by Anonymous · 0⤊ 0⤋