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How does radar work?
A basic summary of how radar works is that a pulse is transmitted and any return or echo is listened for. If a return is sensed, the timing between the transmission and the reception of the echo is used to determine how far away an object is. There are some other ways in which radar works as well.
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The radar works just fine, but the operator (the traffic officer) may not be able to see an approaching vehicle as well or as far away in fog conditions. The proper way to use… traffic radar is to observe a speeding vehicle, visually estimate its speed, and then confirm the speed with the traffic radar. In dense fog, the traffic radar may indicate speeding vehicles the officer cannot see.
A sonar transmits sound waves and captures it back after they strike an object. They work on the dopplers principle.
"RADAR" is an acronym for RAdio Detection And Ranging, which is a broadcast beam and receiver, used primarily to detect the objects (such as aircraft) which are at a distance …that cannot be observed visually. It is one of the applications of microwaves. Radar is used along with advanced transponder technology in air traffic control. Smaller radar units have been used to measure the speed of cars and trucks on highways, using the Doppler effect (frequency shift for moving objects), although these have mostly been replaced with laser devices using the same principle. Radar is based on the principle that the RF signal at a high frequency is reflected back by reflective objects, typically large objects made from metal, composites, or rubberized materials. The distance between the radar antenna and the target can be measured by the delay time (microseconds, millionths of a second) between the broadcast and detected return. The reflected signal is known as a 'radio echo'. The time taken by the signal to travel one nautical mile is 6.18 micro seconds, so it requires 12.36 microseconds to reach and return from an object one nautical mile away. The formula to determine the distance of the object 'S' is S=T/12.34 where 'T' is the time taken for the transmission and reception of the signal. --- Radar is an acronym for RAdio Detection and Ranging. It uses RF transmission (radio frequency) in the microwave band to detect and range any detectable target within its range. It is an "active sensor" which emits RF waves that bounce off a target and are detected when the wave is received back. The time delay between transmission and detection produces its range given that the RF wave propagates at a uniform speed. Modern "stealth" aircraft use RF scattering, along with microwave-absorbing materials, to avoid detection by traditional radar. Some advanced planes have radar reflection signatures so low that they are less than those of small birds.
I would assume so. Radar is just another form of electromagnetic radiation, just like light. I would infer that if you can see through the rain (that's light), then other form…s of electromagnetic radiation (such as radar) can also pass through the rain. Of Course, I would also assume that the range and effectiveness of the radar gun would be reduced at least a small bit. As long as the radar is functional normal rain water will not have any effect on it working to detect speed.
The official description of how Ghost Radar works (acording to it's developer Spud Pickles) is as follows: How does Ghost Radar work? Modern mobile devices are amazing devic…es filled with sensors and transceivers. To name a few, there is a WiFi transceiver, a touch sensor, an acceleromete, a phone transceiver, a microphone, and a magnetometer. As you can see there are plenty of ways for paranormal activity to interact with the device, the trick is to interpret the readings from these sensors and receivers and present them in a way to help track the paranormal activity. The majority of equipment used to hunt for paranormal activity was not originally designed to hunt ghosts and do not find the majority of their use in the paranormal. For example EMF detectors and KII meters were designed for electrical work and are used predominantly in that field, not the paranormal. Also, IR cameras were originally developed during the Korean War for the military to find enemies in the dark. These days IR cameras are mostly used by firefighters, astronomy, police, etc. Even though these devices were not originally designed for the field of paranormal they do seem to be the most effective tools in the hunt for the unknown. Ghost Radar enables your mobile device to be used for the paranormal even though the device was not originally designed for the paranormal, just like the EMF detector, KII meter, and IR camera. The readings that Ghost Radar presents are open to your interpretation and up for debate. Ghost Radar uses a variety of readings from the sensors on the iPhone and iPod touch to measure anomalous changes in the Quantum Flux. A large portion of the flux readings come from the background anomalies of the accelerometer. These sensor readings come in constantly and have only very minor changes. Ghost Radar tracks these readings and analyzes them; watching for strange behavior. Based on a multitude of different readings and historical trends Ghost Radar uses its proprietary algorithm to present various visual and audible representations of the readings. I have personally had very good results using Ghost Radar and believe that the possibility that it is actually being used as a communication device between the dead and the living is about 50% probable.
No. With police officers in motion, it would appear that cars would be going slower. Say that a car is going 50 MPH, and you are going 45 MPH. Eventually the vehicle wil be ah…ead of you. Now say you are a police officer with radar. If you test this car, it will appear (on radar) that the 50 MPH car is only going 5 MPH, thus to get the accurate speed, you must be going 0 MPH. Disagree. The original police radar required a stationary unit. Radar is use for the past 30 years is capabable of adding or deducting the speed of the police car from the observed speed. It does not require that the police car be in one fixed spot. Added: The second cotributor is correct. I seriously doubt that any of the old radar units are still in operation much less certifiable as accurate. ALSO: the term "radar" is a commonly used by the the public to describe ALL police speed-clocking devices. Any of these can be calibrated to be used while the vehicles are in motion.
What does radar what? What does it do? Weather radar scans layers of the atmosphere to find rain and storms. Rain or clouds will reflect the radar signal back to the transmitt…er, indicating a cloud heavy with rain or a lighter, non rain cloud. Radar may also be used at an airport to tell the controllers where planes are both in the air and on the ground. Radar may also be used in a plane to tell the pilots if their are other planed in the sky near them that they should know about. Radar may be used on a car, (usually the nicer more expensive cars), to tell the driver if there is something behind them that they are about to back over or if they are going too fast and getting too close to the car in front of them. Some cars will automatically slow down if they are too close to the back bumper of the car in front of them. When radar is used underwater, it is called sonar.
Radar sends out a radio wave and measures the reflected radio wave using it to calculate a target's speed, shape, material the object is made of, and direction of moveme…nt.
The Frank's Box was one that cycles through random frequencies and allegedly allows spirits to manipulate said frequencies so that certain broadcasted words can be used to res…pond to questions. We covered the Frank's Box in a previous article and having seen it in action I can't say that there is much happening here other than random words that may or may not be relevant to a posed question. The Ghost Radar is the newest of these gadgets to make their way to the public for mass consumption. For a few bucks anyone with an Android phone, iPhone, iPad, and BlackBerry devices can get an ad free version of the software. I am not going to bother explaining how it works, as I am not sure it even does. I have used it in places where no known activity is said to exist and I still get random words spoken and ghostly blips on the radar. These random words could mean something to someoneone and if you were to listen with a group of friends there is bound to be more relevant "hits". The interesting part is that when investigating an allegedly haunted location, the words spoken tend to take on more meaningful logic. During a recent investigation at Historic Fort Morgan we heard some words spoken that were VERY relevant if the spirit of someone who had been stationed at the previous fort that stood on the spot of Fort Morgan was hanging around with us. Fort Bowyer guarded Mobile Bay prior to the erection of Fort Morgan. It was taken by the British during the war of 1812. The sad part is that this battle as well as the Battle of New Orleans should never have happened because the Treaty of Ghent had been signed the previous Christmas Eve and the war had officially ended. Because of the difficulty getting communications to these points neither side was aware the war had ended. Two battles raged after the war had ended and lives were pointlessly lost. Obviously, U.S. Soldiers who lost the fort in the War of 1812 had very strong feelings about these Europeans. As evidenced by the responses we got on the ghost radar. Someone Doesn't Like Europeans We also had a female investigator present and the application pointed out the fact that she was in a Fort where women were not allowed by saying "Female". We assume that's what it meant, it could have just been a random word. During another session with the Ghost Radar the word "melted" was spoken which could have been completely random if there had not been a fire at the fort in the enlisted men's quarters, roughly in the spot where we were sitting. The main problem I have with this software is that it speaks ALL THE TIME. Granted, it became much more accurate in a place suspected of having paranormal activity and the words spoken were very relevant to the history of the fort. Or, they were just random words generated by a silly cellphone application and we inflated the importance of these spoken words so that they fit within the context of our investigation. The application did not allow the words to respond directly to us, not that we experienced anyway. We would ask questions and there would be words spoken that seemed relevant to our surroundings but did not answer our questions directly. Reviews on the company's site indicate that others have had moderate success with spirits using the software to directly interact with them, this group however was not so fortunate. As with any tech, the jury is out on this tool. We will use it a few more times to determine if it provides any value whatsoever. I am not comfortable using this tool as "evidence" when there is no proof of its scientific value, but it does add an interesting dimension to those slow investigations where you feel like you are simply entertaining yourself. The name of the application again is Ghost Radar and the maker of the application is Spud Pickles.
Yes!!! Radar uses its own emitter. To the receiver it is always night until the transmitter is tuned on. Turning on the transmitter is like turning on a flashlight.
Block diagram mti radar
i don't the answer
Yes it does work at night and so...don't speed.
Radar is something that is in use all around us, although it is normally invisible. Air traffic control uses radar to track planes both on the ground and in the air, and also …to guide planes in for smooth landings. Police use radar to detect the speed of passing motorists. NASA uses radar to map the Earth and other planets, to track satellites and space debris and to help with things like docking and maneuvering. The military uses it to detect the enemy and to guide weapons. Radio pulses are transmitted from the antenna, reflect back off objects, and are received again by the same antenna. The time is measured from transmission to reception and used to calculate distances to the objects. In most systems the time measurement & distance calculation are a single implicit operation done directly in the display by calibrating it in distance not time units.
go to the key items pocket select poke radar, then select use then the grass will shake, walk to pach that shuffles, if the pach sparkles, it's a shiny pokemon.