Видео

how often do the tuning forks need to be calibrated?

These are extremely outdated radars. The new DSR 2X and laser systems are nearly perfect. He also likely had it where approaching and distancing car's speeds were combined. That can happen with faulty equipment

Where do u buy it from ?

no one in video more than 65-70. I'd guess 65 or below even. as someone that drove 100 before.... no one is over 80. and 130 would zip by twice as fast

32-years in the business and don't recall a single redlight "shaver" being cited. Of course you'll hear all sorts of one-sided hearsay tales you can file away with the "know a guy who knew a guy who got a ticket for 1-mph over the speed limit stories," but cops drive too and know that some redlights are timed so poorly that you either have to dynamite the brakes or run the light at the first yellow. To get a ticket for a redlight you have to bust the intersection well into the red cycle, usually bad enough to cause cross traffic to slow. A shaver might get stopped just to see if he's sober or because car looks like a maggot wagon, but not cited.

Who gives a F------

Now I have proof that the tree ran into me.

oh my 44

please buy a dashcam that has GPS. if this ever happens to you, you'll have proof you were not actually driving 88 million miles an hour as charged.

This is pointless....

Just shows that radar is not accurate

What about the all red clearance time? That should be factored in. Most states use a two second all red clearance to give the total clearance of the intersection of six seconds

I agree with everything you pointed out, but you left a lot of important information out too. Firstly, police do not NEED radar to give you a speeding ticket, they are trained to judge speed by eye and only "confirm" with radar readings. Also, police vehicles' speedometer are certified accurate every 6 months so simply driving next to, or behind a vehicle and matching speed (called pacing) will give an accurate measurement. And finally, the officer pulled out into traffic well before initiating the traffic stop, most likely to observe the driver and/or passengers for other probable cause to initiate a traffic stop. The speed limit at the location the officer was stopped at may have also been 55mph before changing to the higher limit so they may have issued the speeding ticket referring to the original measurement from when the officer was stationary. I can not say for sure any of that last part is true based solely on this video, but hopefully your source for information was more than just this dash cam video, or you too are doing nothing more than speculation, same as I have.

Best video of RADAR testing. Thank you sir!

Haha! You busted a police car!

It's a metal detector for a bill fold

This is absolutely fascinating I do use the solfeggio tuning forks but has no idea they were used this way to tune radars. I would wager NONE of the police in my area do this before OR after any shift.

Good ol golden eagle 2. Lol

If you don't have a FCC part 90 license using that radar system ? You're committing a worse offense than those speeders.!

Officers need to apply common sense, if a vehicle passes you at 130 mph it will be obvious!

Interesting

FWIW, it’s not worth the cop’s time to issue a speeding ticket for 7 mph. It’s usually 10+ they’re looking for.

Quite simply an occasion of "double bounce" when the signal is striking two objects together and the two speeds are calculated as one speed. This is easily detected when something that should be travelling 50 mph is being calculated at 100 mph. This is why the radar is a tool that corroborates the officer's opinion the driver of the vehicle was speeding. Nothing to see here...move on.

radar jammers will make the read erratically as well.

Great video, well explained and well edited. Thank you.

Vehicles are moving faster than the readout indicates. That is a very sharp approach angle which makes the radar less accurate; of course it's inaccurate in favor of the motorists. If you angle the antenna too sharply in the moving move, it drops the patrol speed and falsely adds the difference onto the target speed. Of course I reckon you know all that.

Anyone who uses traffic radar is aware that the fan can be detected by inside windshield deflection. You move the antenna, or just keep the fan speed below any possible violation speed. Or ignore it, since the fan speed disappears when a vehicle appears. Traffic radar locks onto the strongest signal, and no reflected fan can compete with a vehicle . Last, radar is not used to determine speed. The eye is; the radar only confirms what is being visually observed. It's part of the "tracking history."

The radar is hitting a large vehicle coming towards the patrol car, the radar ricochets off a truck on the oncoming lane, reflects back to the first vehicle then back to the patrol car, it measures the closing distance of the two vehicles instead of the real speed. This is why cops listen to the Doppler audio so they can immediately rule out false hits like that. I think the newer units filter that stuff out

Does this need to be tested every morning for cops?

Look at the angle and the mounting... you're the one making the mistakes.

This isn't misreading. What it's doing is combining 2 vehicles speeds. Cops know this that's why he isn't pulling anyone over for 128 or 140

The cop probably isn't wearing a seat belt, either. It must be nice to be a sovereign citizen, where the laws don't apply to you.

At least it doesn't show him writing tickets I wonder how many cops have row tickets knowing radar is faulty

Probably best straight to the point video! Thank you!

This video cames from last century... Nowadays there are tecnlgies much more advanced, even in my country, a developing country... 3D radars, automatic (no operator needed), digital files, ANPR, etc...

This would make a good physics experiment! What would the displays show if the gun was placed on the passenger seat and pointed at the wall under the dash while the patrol car is traveling at 60 mph? According to mathematicians, the left and right displays would both be dark because the speed of the wall is zero relative to the gun. But, according Einstein and the Doppler Effect, BOTH the target display AND the patrol display would show 60 mph.

I was wondering how this worked. Thanks.

Tf is this shit?

You’re getting inaccurate readings because of how you’re parked. You’re supposed to be parallel with the lane in which you’re monitoring on the right side of traffic, meaning the opposite side of the road in this video. That’s why there’s front & rear antennas. Police radar has a “TARGET” and “FAST” box, target displaying the target vehicles speed and fast displaying a trailing car that is traveling at a faster or slower speed. I see this one doesn’t have that, meaning it’s probably combining the speeds of 2 cars instead of giving them separate readings. Radar is extremely accurate when used right and is easy to calibrate

Poor cosine angle. What's the sensitivity set at? There's no point by aiming at that much traffic approaching and departing. Tickets aren't written in those conditions using K or Ka band radar.

Errors of Photo Radar. How many people know what angular deviation is? The use of Radar to calculate the speed of a vehicle on a highway is quite accurate on a straight line highway, but when a radar beam is place on a vehicle traveling in a curved section of a highway, the reading can be as high as 30 percent off. The province of BC conducted tests in 2008 which showed that a radar gun placed at a 45 degree angle to the speed of a vehicle traveling at 100 km / hour, actually reads 115 to 120 km / hr. I actually participated in one of those tests. Last year I moved from British Columbia to Alberta and I've got a vehicle equipped with a dash cam camera. Last week I experienced traveling in Devon Alberta in a 30 km zone at the speed 35 km/hr, as recorded by the dash cam. I was pulled over and received a ticket from a Town CPO where the officer wrote in the radar speed to be 44 km / hr. An error of 9 km / hr. I traced back the location of where the radar was used at and sure enough the officer was shooting his radar at an angle of 30 to a 60 degree angle. Such a high deviation angle gave the officer a false speed reading. I covered 390 meters in exactly 40 seconds. When you do the math, 390 meters in 40 seconds calculates to exactly what my dash cam indicated, that being 35 km per hour. Because British Columbia has plenty of curved roads, there were 1000's of Radar readings that were way above the actual speed of the vehicle which was traveling within the correct speed limit. Many photo radar operators know about this angle deviation, and will purposely place themselves close to a curved highway area and collect false radar readings so as to increase their earnings and the profits they illegally collect for their local government, an act that robs funds from motor vehicle drivers. This act is better know as a "Cash Cow Profit" for the government that allows it to operate.

everyday traffic is 80-85 mph so doesn't matter on high way city and residential yes

While this is entertaining to watch, we don't know if this radar unit was calibrated correctly, recently passed certification, or defective. Yes, all humans and machines will make errors, but if the officer is properly trained and the unit passed it's calibration test (at the beginning of each shift), errors will be minimized. We cannot tell from the video if there are high voltage power lines,TV/Radio tower, or airport nearby. These can induce interference with the radar unit.

And that’s why I use a radar detector. Now we wait for the comments of well you shouldn’t be speeding

Who cares...

is this detector from radio shacks?

Pretty sure officers aren't supposed to shoot radar across 2 lanes of opposing traffic, and trucks are known to cause false readings due to their large size. I'm not an expert but that's what i've read in the manual.

I have one of them old Radar set ups front and rear. im mounting them in my school Bus . Good to know. .. Its just for fun.

Looks like a radar unit bought from a Chinese supplier on eBay.

Looks like a radar unit bought from a Chinese supplier on eBay.