1. ## Question on How Radars Work

Hello,

How's everyone doing? My friend and I are debating about whether or not LEO's radar works when they are moving.

I know radar can detect speed when moving because I have been pulled over by a cop driving towards me [pre my RX65]. Yet, my friend says there is no way because the math is impossible since the LEO is moving. He says radar must be used from a stationary position.

How can I prove to him that radar works not just from a stationary position, but from a moving LEO car? How does radar take into account the speed of the cop car?

Thanks

Jason

2. yes radar works while they are moving.

the only thing they can't do moving is shooting laser.

3. ## Re: Question on How Radars Work

Originally Posted by CelicaTRD
Hello,

How's everyone doing? My friend and I are debating about whether or not LEO's radar works when they are moving.

I know radar can detect speed when moving because I have been pulled over by a cop driving towards me [pre my RX65]. Yet, my friend says there is no way because the math is impossible since the LEO is moving. He says radar must be used from a stationary position.

How can I prove to him that radar works not just from a stationary position, but from a moving LEO car? How does radar take into account the speed of the cop car?

Thanks

Jason
Yes radar works while moving, and has for a long time now. The radar calculates the patrol car speed by receiving the doppler reflection of of the road and other terrain (in many cases that is the strongest doppler return):

-in oncoming moving mode, the lower doppler return is the patrol car speed, while the higher doppler return is the doppler speed for the patrol car plus the oncoming vehicle speed

-in same lane moving mode, the low doppler is the difference between the patrol car speed and the target vehicle speed, while the high doppler is the patrol car speed.

All you have to do to prove it to him is show him the specs on the radar units available:

http://www.kustomsignals.com
http://www.mphindustries.com/

Jim

4. Thanks A lot!

#### Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts
•