31 Jul

While all of these Doppler based radar systems use microwave emissions to perform their specific tasks, their designs are quite different.

Standard Police Radar Guns project a microwave beam in one direction only. There is no movement made by the …

27 Jul

In order to answer this question the first thing I had to do was see how small an object a radar gun could pick up. Since most chronographs are used for shooting sports and archery, I chose a subject roughly …

26 Jul

“Remember class, there’s no such thing as a stupid question.”

I had a great question today. “I heard that a car with a supercharger will screw up a radargun. Is this true?”

This is untrue in every way, shape, …

24 Jul

Ever wonder how a police officer can ticket you for speeding if they are driving? Depending on the model Radar Gun they use, some models have a Moving Mode Radar. These units actually take two speed measurements to figure …

19 Jul

Radar Guns are all calibrated before they leave the factory. Some are done once, and others are calibrated again before shipping. So how do you know if your radargun is still working properly after years of use? Higher end radar

18 Jul

Recently, I have had many requests for permanently mounted radar sensors with remote displays. Most of the time these requests are for building a pitching booth, but there have been a couple fun ones like a new tennis club with …

17 Jul

Last weekend I went over to my aunt and uncle’s house for dinner. My cousins, ages 4 and 6, just got new bikes so I brought over my Bushnell Velocity Radargun for a little fun. I was amazed at how …

12 Jul

We’ve all seen those speed displays on the side of the road. They are commonly found at a toll booth, construction site, school zone, or any place where you are being asked to slow down to a crawl at a …

12 Jul

If you really want to know how radar guns work, you really need to check out the Traffic Radar Handbook: A Comprehensive Guide to Speed Measuring Systems by Donald Sawicki. This all-inclusive book reminds me of my college Physics textbooks, …

09 Jul

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