In detail: do-it-yourself repair of the radar detector from a real master for the site my.housecope.com.
ANTI-RADAR SCHEME
Probably every driver at least once had the idea to acquire a radar detector, especially after another racket of a traffic policeman on the road. So get down to business! But let's clarify right away: a radar detector is a device that suppresses police radar, and its assembly is a very difficult task. Here we will consider a simpler anti-radar scheme - the so-called radar - a detector that signals that an inspector is scanning your car.
To measure the speed of a car, the traffic police radar receives radiation reflected from the car, and the radar detector - direct, therefore the radar detector is always able to detect the radar earlier than it measures the speed of the car! So, if a traffic cop scans from his radar 500 m from the car, this is the range of the Vizir device, then before the car approaches a visible distance of 100 m you have the opportunity to slow down.
This anti-radar scheme is quite common on the network, and although I personally did not assemble it, I had to repair such a homemade device. There, a microwave diode - the detector stood in a small funnel made of tin and the whole structure fit into a body soldered from foil PCB, the size of a pack of cigarettes. Under microwave irradiation, it blinked and peaked. Here is another version of the anti-radar circuit from the Radio magazine:
All radars in service with the traffic police operate at frequencies of 10525 MHz, 24150 MHz and 34700 MHz. These radar detectors are capable of detecting all of them.
Setting up the anti-radar circuit can be done while standing close to the person with the radar;
Or so as not to light up, near the stationary radar - camera:
 |
Video (click to play). |
Sometimes they are placed a couple of kilometers in front of the traffic police post:
Recently, the authorities have adopted: The VIZIR radar video recording speed meter consists of two independent units - a speed meter and a digital photo and video camera. The camera turns on both automatically when the driving car exceeds the preset speed limit, and manually - by an auto inspector. Surveillance cameras with built-in radar. The device works constantly, and when the speed is exceeded, the sensor is activated, which activates the camera.
The market also offers radar detectors. This device is not prohibited: nowhere in the law is it written that you cannot use radar detectors. Here are some examples of branded foreign products:
Cobra XRS-9445 Radar Detector. Price: $ 109.99
Cobra XRS-R9G with GPS Speed & Red Light Camera Detector. Price: $ 229.98
Cobra XRS-9970G Radar Detector. Our Price: $ 319.99
Questions about radar circuitry? FORUM
gusek, they are on several bands (modern). For the microwave range, a microwave generator is needed IMHO in the region of 10-12 GHz (or pile from a waveguide and a Gunn diode - drill a waveguide in a certain place), + optical range - for a laser rangefinder, there must be a lens in the antiradar.
If the sensitivity is regulated, turn until a beep appears.
If not, look for the generator of the G4-XXX series and look for the detector with an oscillator, that is, move from the indication to the beginning.
Or a familiar traffic cop with a radar.
Monitor's Killer
Posts: 3757
gusek, Place 4 stoves next to it and press the “+” button on the keyboard.
In fact, I have 2 pieces lying around, so I'm waiting for a convenient moment when a thread of friends I know breaks, so that a couple of radars on different diapanos can be removed from them.
Currently, devices such as radar detectors are gaining more and more popularity among our compatriots. Such devices are designed to fix cameras, as well as police radars, which are used to determine the speed of a car and warn the driver about their presence. Like any other gadget, the detector can fail over time. In what cases it is necessary to repair radar detectors and what malfunctions are typical for such devices - we will talk about this below.
How to check such a device at home?
If we are talking about diagnostics of functionality, then the gadget is checked in the car, the diagnostic procedure is as follows:
What malfunctions are most often manifested in the operation of detectors:
As for the repair, it is far from always possible to carry out it with your own hands. If you have the appropriate knowledge and skills, you can try to repair the detector yourself.
How can you restore the device to work:
Is your TV, radio, mobile phone or kettle broken? And you want to create a new topic about this in this forum?
First of all, think about this: imagine that your father / son / brother has an appendicitis pain and you know from the symptoms that it is just appendicitis, but there is no experience of cutting it out, as well as the tool. And you turn on your computer, access the Internet on a medical site with the question: "Help to cut out appendicitis." Do you understand the absurdity of the whole situation? Even if they answer you, it is worth considering factors such as the patient's diabetes, allergies to anesthesia and other medical nuances. I think no one does this in real life and will risk trusting the life of their loved ones with advice from the Internet.
The same is in the repair of radio equipment, although of course these are all the material benefits of modern civilization and in case of unsuccessful repairs, you can always buy a new LCD TV, cell phone, iPAD or computer. And for the repair of such equipment, at least it is necessary to have the appropriate measuring (oscilloscope, multimeter, generator, etc.) and soldering equipment (hairdryer, SMD-hot tweezers, etc.), a schematic diagram, not to mention the necessary knowledge and repair experience.
Let's consider a situation if you are a beginner / advanced radio amateur soldering all sorts of electronic gizmos and having some of the necessary tools. You create an appropriate thread on the repair forum with a short description of “patient symptoms”, ie. for example “Samsung LE40R81B TV does not turn on”. So what? Yes, there can be a lot of reasons for not switching on - from malfunctions in the power system, problems with the processor or flashing firmware in the EEPROM memory.
More advanced users can find the blackened element on the board and attach a photo to the post. However, keep in mind that you are replacing this radio element with the same one - it is not yet a fact that your equipment will work. As a rule, something caused the combustion of this element and it could “pull” a couple of other elements along with it, not to mention the fact that it is quite difficult for a non-professional to find a burned-out m / s. Plus, in modern equipment, SMD radio elements are almost universally used, soldering which with an ESPN-40 soldering iron or a Chinese 60-Watt soldering iron you risk overheating the board, peeling tracks, etc. The subsequent restoration of which will be very, very problematic.
The purpose of this post is not any PR of repair shops, but I want to convey to you that sometimes self-repair can be more expensive than taking it to a professional workshop. Although, of course, this is your money and what is better or more risky is up to you.
If you nevertheless decide that you are able to independently repair the radio equipment, then when creating a post, be sure to indicate the full name of the device, modification, year of manufacture, country of origin and other detailed information. If there is a diagram, then attach it to the post or give a link to the source. Write down how long the symptoms have been manifesting, whether there were surges in the supply voltage network, whether there was a repair before that, what was done, what was checked, voltage measurements, oscillograms, etc. From a photo of a motherboard, as a rule, there is little sense, from a photo of a motherboard taken on a mobile phone there is no sense at all. Telepaths live in other forums.
Before creating a post, be sure to use the search on the forum and on the Internet.Read the relevant topics in the subsections, perhaps your problem is typical and has already been discussed. Be sure to read the article Repair strategy
The format of your post should be as follows:
Topics with the title “Help fix the Sony TV” with the content “broken” and a couple of blurred photos of the unscrewed back cover, taken with the 7th iPhone, at night, with a resolution of 8000x6000 pixels are immediately deleted. The more information you post about the breakdown, the more chances you will get a competent answer. Understand that the forum is a system of gratuitous mutual assistance in solving problems and if you are dismissive of writing your post and do not follow the above tips, then the answers to it will be appropriate, if anyone wants to answer at all. Also note that no one should answer instantly or within a day, say, no need to write after 2 hours “That no one can help”, etc. In this case, the topic will be deleted immediately.
You should make every effort to find a breakdown on your own before you get stumped and decide to go to the forum. If you outline the entire process of finding a breakdown in your topic, then the chance of getting help from a highly qualified specialist will be very great.
If you decide to take your broken equipment to the nearest workshop, but do not know where, then perhaps our online cartographic service will help you: workshops on the map (on the left, press all buttons except “Workshops”). You can leave and view user reviews for workshops.
For repairmen and workshops: you can add your services to the map. Find your object on the map from the satellite and click on it with the left mouse button. In the field “Object type:” do not forget to change to “Equipment repair”. Adding is absolutely free! All objects are checked and moderated. A discussion of the service is here.
For novice radio amateurs, you can offer a simple metal detector circuit on a single integrated circuit TDA0161. It is based on a specially designed circuit for detecting metal objects. The scheme is quite simple, because basically everything is assembled in a microcircuit and a few details around it.
The power indicator is suitable for any novice radio amateur. It can be built into speakers, a tape recorder or an amplifier by selecting the resistance R7. More details ...
The small size of the speakers installed in the car does not provide good reproduction of low frequencies (“bass”). One of the solutions to this problem is to install a subwoofer with an amplifier common for the right and left channels with its own speaker in the car. The subwoofer will only reproduce the low frequency components of the audio range. Next, you will learn how to make a do-it-yourself subwoofer. More details ...
Subscribe to our RSS feed to receive site news. Always be in touch!
- A simple and reliable DIY metal detector - 186 209 views.
- A simple DIY metal detector - 176,300 views.
- DIY microwave oven repair - 174,528 views.
- Charger from a computer power supply. - 158 649 views
- Car chargers. Scheme. Principle of operation. - 134,714 views.
- Simple and reliable incubator thermostat diagram - 123 439 views.
- Do-it-yourself moonshine still - 107,344 views.
- How do I change the USB connector myself? - 95 720 views
- Crafts from plastic bottles - swans for the garden - 87 309 views.
- Simple Automatic Charger - 79,027 views
Master Cog. Do it yourself! Is a site for those who like to make, repair, create with their own hands! Here you will find free reference books, programs.
The site contains simple schemes, as well as tips for beginners homemade. Some of the schemes and repair methods were developed by the authors and friends of the site. The rest of the material is taken from open sources and is used for informational purposes only.
Do you like tinkering, making crafts? Send photos and descriptions to our website by e-mail or through the form.
Programs, schemes and literature - everything is FREE!
If you liked the site, add it to favorites (press Ctrl + D), and you can also subscribe to RSS news and always receive new articles on the feed.
If you have a question about a diagram or a craft? Welcome to our forum!
We are always happy to provide assistance in setting up circuits, repairing, making crafts!
How do radar detectors work? The following requirements are imposed on radar detectors:
The detection range of a signal by a radar detector is one of the most important characteristics of the device, since the amount of time it takes to make a decision depends on it. In the “city” mode, the detection distance of the radar radiation fluctuates within 700-850 meters, outside the city the distance can reach 3 km.
Working range of waves - the wider the range of waves received by the device, the more models of DPS radars it can take direction finding. Today, without fail, radar detectors must operate at the following frequencies:
- X-band (10.525 GHz) is an obsolete frequency, models on it are not produced, but they are still found on the roads.
- K-band (24.15 GHz) - this frequency is used in most radars in service with the traffic police.
- Ultra X - short pulse range, introduced since 2002, used in modern Sokol radars.
- Ultra K - the K range of short pulse frequencies, introduced since 2004, is used in Iskra and Berkut radars, as well as in video recorders.
- VG-2 - radar detector blocker when detecting direction finding equipment from traffic police officers.
- POP TM is the frequency range of radars used in the USA.
Most modern models have a multiband matrix for determining the incoming signals.
One more antiradar characteristic - the ratio of false signals to real ones. It is known that the radar detector takes only part of the signals, in each specific situation there are conditions for false alarms (electric door locks with photocells, high-frequency emitters, terrain features, radar impulse).
Important characteristic radar detectora is the processing time of the incoming signal. Modern models of radars in service with the traffic police operate in a pulsed mode, with a short period of the emitted signal, operational reception and its processing increase the efficiency of the radar detector.
Reliability of the result - in addition to the coefficient of false signals, the reliability of the data, the correspondence of the received data on the distance to the radar, plays an important role.
Appliance functionality - Premium models are equipped with additional features to make the appliance easier to use. For example, a local oscillator built into the antiradar circuit has a blocking system in the presence of a DPS radar. Local oscillator sensor without phonit protection with amplification of the signal from the radar.
Reliability - the radar detector is used in a dynamic mode, since it is quite rigidly fixed on the front window of the car (the rubber suction cup weakly dampens shock loads), therefore, all potholes and irregularities in the road turn into vibration. Continuous exposure to vibration when the instrument is poorly executed can result in poor readings.
In addition to the listed characteristics, radar detectors can take direction finding of laser signals, however, the determination of laser exposure does not have accurate statistical data due to the specifics of the application of such radars.
Radar detectors are manufactured in a monolithic case, so most breakdowns can only be repaired at a service center. Among the frequent breakdowns - the radar detector constantly beeps, the radar detector does not work, the radar detector does not catch. Some of these faults may not be such. If your anti-radar does not catch any one type of radar, it may turn out that it is simply not capable of this constructively. There is also an uninterrupted supply of signals in the city, but, as a rule, this is not a defect, since the device must be switched to the “city” mode. Any repair of radar detectors is best done in a service center or at authorized dealers, if the warranty is valid. Self-repair can finally "finish off" your radar detector.
and where does the VF trade wind?
only a turret machine gun can be placed there. a
Whistler 138 Ru is a radar detector, not a radar detector
What's the difference? I’m, you might say, a teapot. Explain, if not difficult. Or where to read something sensible about it?
difference in terminology
a radar detector is essentially a special device that disables the radar. it's illegal everywhere.
the detector only informs about the possibility of irradiating it with signals similar to radar. it is illegal in some countries. in the RF norms.
Actually, modern radars are less visible and the meaning of a radar detector is becoming less and less.
depending on what "graze".
tripods emit constantly and they are "visible" from afar.
The vizier works on the sight. but most likely, if you are not alone on the road, they will check the cars in front and again you will cross ..
Stationary arrows are few and far between, and they are close when it's too late.
well, hair dryers without video recording seem to have been banned
about antiradar - it is a source of strong electromagnetic radiation .. is it pleasant to be irradiated yourself? well, for the time being it.
you will drive a couple of times .. then the facts will be compared. This time .. well, and secondly, it is not a fact that this radar detector will effectively drown out the entire frequency band, so it can be useless, especially since different radars work in different ranges - and all to jam, it is necessary to carry a cart with an additional generator
- Like
- I do not like
Moderator Sep 25 2012
Well, what about the irradiation you turned it down. Despite the fact that everywhere there are mobile networks, wi-fi and the like, your radar detector will not do anything wrong. It just might be a problem due to its illegal use. Install a radar detector)
and which model is more reasonable to choose?
depending on what "graze".
tripods emit constantly and they are "visible" from afar.
The vizier works on the sight. but most likely, if you are not alone on the road, they will check the cars in front and again you will cross ..
Stationary arrows are few and far between, and they are close when it's too late.
well, hair dryers without video recording seem to have been banned
about antiradar - it is a source of strong electromagnetic radiation .. is it pleasant to be irradiated yourself? well, for the time being it.
you will drive a couple of times .. then the facts will be compared. This time .. well, and secondly, it is not a fact that this radar detector will effectively drown out the entire frequency band, so it can be useless, especially since different radars work in different ranges - and all to jam, it is necessary to carry a cart with an additional generator
I hear about it for the first time.
difference in terminology
a radar detector is essentially a special device that disables the radar. it's illegal everywhere.
the detector only informs about the possibility of irradiating it with signals similar to radar. it is illegal in some countries. in the RF norms.
Actually, modern radars are less visible and the meaning of a radar detector is becoming less and less.
thanks, now I will know. I'll think about it.
Cyril, where does infa come from?
for example, to normally mute the phone, you think the phone has enough power. you need many times more! And this is not taking into account that it is necessary to jam the entire potential band and not a couple of frequencies at which the signal is actually transmitted (!)
And where does the infa come from that the radar detector is harmful to health? If the rays are directed, then all the more there is nothing to be afraid of. Maybe you don't use a microwave either? There, too, the radiation is good
And where does the infa come from that the radar detector is harmful to health? If the rays are directed, then all the more there is nothing to be afraid of. Maybe you don't use a microwave either? There, too, the radiation is good
It's just that there is powerful radiation in the antiradar, that's all. If a person is irradiated like that, then nothing good will happen. But this is all theory
something in the news slipped the idea of the traffic police to ban these things.
who thinks about this?
Yes, this idea is not the first time jumping, but has not yet been banned. If they are banned, they will come up with something new.
Yes, this idea is not the first time jumping, but has not yet been banned. If they are banned, they will come up with something new.
And what can you think of new here?
- Like
- I do not like
Don't drink while driving! 11 oct. 2012
And what can you think of new here?
But you never know what. Once upon a time, there were no anti-radars, and there were no detectors. Then they came up with it. Well, that's the same and something else will come up with. Progress.
As for me, all these anti-radars and radar detectors are illegal, or at least go against their conscience. It would be better for something to come up with a device so that drivers observe traffic rules
Why is it against your conscience? What's so terrible about that?
It is hard to imagine a car enthusiast who would not have heard anything about such a device as a radar detector, in the common people called antiradar... It helps to capture the radio signals emitted by radars, which are usually used by traffic police officers in order to identify violators of the speed limit on the road.
At the same time, many can say, they say, they heard something, but they just never thought to use this device, because the speed limits have never been violated and we are not going to violate.
But in fact, any experienced driver will say that there are situations when you really lose control over the speed of the car, and even if this is expressed even in a slight excess, this is enough to be fined or even deprived of a driver's license.
In this regard, antiradar it is recommended to purchase and install a car for everyone, at least as a reminder that the speed limit on the road must be observed. But if you plan to use this device, pay attention to two important nuances. First, your car should not have an athermal windshield. Such glasses are now in vogue, because they allow you to reflect the sun's rays and prevent the heating of the car interior, thanks to the silver oxide contained in their composition.
But the point is that such glass prevents radio signals from entering the car interior, i.e. the radar detector, in this case, becomes incapacitated and does not catch. That is why, if you are not sure which windshield is installed on your car, take a close look at it.
If you notice a metallic sheen on the outside, as well as in the protection area where the rear-view mirror is located, it means that you either have to refuse to buy an anti-radar device, or you will need to replace the windshield. However, you can choose a radar detector with a spaced-type installation. For example on some car models Peugeot an athermal windshield is installed through which very badly catches anti-radar.
The second nuance - pay attention to the complete set of your car. Fancy bells and whistles such as cruise control, a blind spot sensor or other functions that measure the distance between an object and your car can jam the radar signal, therefore the radar detector becomes useless again.
Of course, there is an option with the purchase of radar detectors capable of separating interference from the radar signal, but, firstly, today only two models of such devices have been developed, and secondly, their price is unlikely to suit an ordinary domestic motorist.
What to do if the stove in the car does not work?
Replacing the crankshaft oil seal on the timing side with ep6, 308, 408 and 3008
- Like
- I do not like
