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FlightRadar24 COM How to find the right plane. How FlightRadar24 works. The main essence of the work ADS-B is reflected in the picture.

G ruffle, traveling by the plane is much safer than car. Perhaps this is really so, at least, airplanes are faced with each other in the sky, it happens very rarely. However, who had a specialized Internet service confidence in the safety of airborne displacements could be hidden. This original resource clearly demonstrates how much at the moment there are civil airliners in the sky and where they fly.

It shows the direction of flight, speed, height, local time, temperature overboard and a bunch of different other parameters, however, most of which are only available in the premium version. But the most important thing is that all this is displayed in real Time.

Having brought closer to the mouse with the place of the terrain, you will see that the aircraft move, literally fly over the earth. To view details about a specific flight, you need to click on the mouse on the aircraft figure. In this case, on the left side of the web page will immediately appear information panel With different information like that: points of departure and destination, their local time, type and registration number of liner, the distance passed to them, height and speed of flight, current latitude and longitude and some other information.

In the upper right corner of the web page there is a button in the form of a gear, clicking on which you can call the settings panel, allowing you to set more familiar units for you, for example, replace mile kilometers . There you can also set many other display parameters, in particular, change the map type. Multiple modes are supported: Land, Satellite, Road map, Hybrid and Light and Dark Radar.

Users with installed plugin Google Earth. Moreover, they can still switch to 3D—mode. There are also different information about the weather, clouds, ocean currents and other things, but for access to them you would have to make a subscription. By the way, its value is only 1.99 Euro per month, provided you facilitate it for a year. For free use of the service, a small restriction is superimposed: you can only monitor the movement of aircraft 30 minutes To continue the observation, you will have to restart the page.

Probably everyone who has ever met or accompanied relatives or friends on the plane, enjoyed free Flightradar24 service. This is a very convenient way to track the position of the aircraft in real time.

As a survey showed familiar, very few people know that this service is supported only by enthusiasts that send data to the server. Already know that anyone can join the project.

Fill this gap. About how it works will continue under the cut.

Iron

The very first question is where the data come from.

Each civilian board is equipped with a special transmitter, the so-called ADS-B Transponder:


(Photos from Garmin)

This device sends special parcels at a frequency of 1090 MHz, containing the main flight parameters, the type of aircraft, its coordinates, destination, etc.

The signal on the spectrum looks like this:

And what is the most important thing for us, decoding this data is easy, a rather RTL-SDR receiver, the price of about $ 8 connected to the computer. Actually, the idea is probably clear - if you collect data from a variety of receivers, we will get a picture, approximately such:

But that's not all. Part of the aircraft transmit data packets, but they do not have GPS coordinates. If you take the data at the same time from a plurality of receivers whose coordinates are known, then, analyzing delays in different receivers, you can find out the location of the aircraft. This technology is called Multilateration (MLAT), you can read more about it on the site.

And finally, the last question is how data is accepted. The answer is simple, a receiver can accommodate anyone who wants, the issue price ranges from 0 to $ 50. For example, the FlightAware service receivers card looks like:

As you can see, the coating of the Russian part leaves much to be desired, so some quite have a chance to be first.

For data reception needed:

Raspberry PI2 / 3 with connected Internet (price from $ 20)
- RTL-SDR-Dongle (price from $ 10)
- At least the simplest antenna of their 2 slices of wire 6.8cm long (1/4 dipole on 1090mgz)

It is also preferably a place with a more or less open overview of at least part of the sky, because Gigahertz frequency signals are absorbed by obstacles like houses or trees.

I and Raspberry Pi, and RTL-SDR were already, so I didn't have to buy anything. But try free to get a ready-made receiver can anyone - and FlightRadar and FlightAware send kits for free users from areas where the coating is currently not enough. You can send a request by reference (FlightRadar or FlightAware), of course, try it is advisable to those who live in a fairly remote area.

I used a set of RTL-SDR V3, which, together with antenna and mini-tripod cost $ 27 with free shipping from China:

By the way, as a second bonus, all sending data to the server, and FlightRadar24 and FlightAware provide unlimited access to Premium account And all server functions (separately such access is about $ 50 / month). So if someone is interested in aviation and wants to have advanced access to such an account, the installation of the RTLSDR receiver is a completely cheap alternative.

Testing

The installation is extremely simple, it is enough to connect the receiver to the Raspberry PI and run one command:

Sudo Bash -C "$ (Wget -o - http://repo.feed.flightradar24.com/install_fr24_rpi.sh)"
The script will request the necessary data (coordinates and receiver type, email address), then the software will work automatically, attention from the user is no longer required. In parallel, you can activate the premium account (for FR24 at https://www.flightradar24.com/premium/signup?Account\u003dFree) and immediately use all its capabilities (track tracks, etc.).

You can go to the Raspberry PI IP address page and see the current status:


Much more information can be seen on the FlightRadar24 account page:

I live on the 6th floor relatively close to the airport, so the number of observed aircraft per day was more than 1000, even on a simple antenna on the windowsill. Interestingly, even with such an antenna, the maximum range to the accepted board was 215 miles. Different options for antennas can be found on eBay by typing ADS-B Antenna.

Alternative

The bonus for those who have enough patience to fulfill until here. Some readers may have a question: can I do without third-party services like FlightRadar? Of course, you can start the decoder on the Raspberry PI can be directly. Download source code at github.com/antirez/DUMP1090.

Enough on Raspberry Pi to dial 3 teams:

Git Clone https://github.com/antirez/dump1090.git CD DUMP1090 / MAKE
Then the decoder can be launched by a command:

./dump1090 --interactive --net
The decoder starts work, and we see "raw data" - a list of visible "sides":

Now you can log into the Raspberry PI browser and admire your own, local FlightRadar, the picture may look something like this:

Why can it be necessary? First, just out of interest, secondly, FlightRadar24, unfortunately, filters part of the data and shows not all Airplanes (for example, Military, Government, or Business Jeta may not be shown). Running your own local service, we see everything "as is", without any censorship. But, of course, the amount of data is limited to our local location and the quality of the antenna, MLAT technology will not be available. DUMP1090 is available in sources, so that wishes can even create their own version of FlightRadar, with blackjack and other bells and whistles.

conclusions

As you can see, everything is not so difficult, while it is quite interesting and inexpensive. To understand the price order: 10 years ago, the AIRNAV Radarbox receiver cost about $ 1000, now RTL-SDR, which does the same, can be taken for $ 10.

In my case, the receiver was launched only for testing, practical sense to keep it constantly included, no coating density of the European part already reaches 100%. For residents of the Russian depthion, on the contrary, it can be quite interesting - it is possible to make a useful case for aircraft travelers around the world, expanding the coverage area and access the premium account of the above-mentioned sites.

All successful experiments.

There are many sites dedicated to online tracking - thanks to them you can track real-time flights. It is very convenient because it allows you to find out with great accuracy, where the plane you are interested in.

How to track the aircraft online?

FlightRadar24 (Flytradar) deserves special attention among this kind of resources, which in the form of an interactive card demonstrates the location of any aircraft. All flights are tracked up to a few minutes.

So now find out where the plane of relatives or friends is located, will not work. Moreover, the resource comes in handy and those who are often traveling. With the help of a mobile application with a fairly convenient interface, the passenger will be able to determine where the plane is located, which is very by the way, if the flight is delayed or during the flight I want to know if there is no lagging from the schedule.

Using the site FlightRadar24 is very simple. To find the right aircraft, just enter the flight number in the search field. And you can also choose any icon that I liked and click on it - then you can see what the route has already been done. In addition, in the special column on the left, detailed information on the flight will be displayed - for example, an airplane model, speed, height, etc.

The data is updated once a minute, so all information is fresh and up-to-date. However, due to some technical difficulties, it can act with a delay of 5 minutes - such aircraft are specifically marked on the Orange map.

Finally, the FlightRadar24 database contains information not only about flights, but also at the airports of many countries, and also provides the ability to track all flights of a particular airline. In general, this is not only useful, but also an entertaining site - if only because you can look at the fire for a very long time, water and how they are moving along the map of the aircraft figurines.

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FlightRadar24 is an Internet service that in real time shows airflow worldwide. FlightRadar24 displays data from many sources, such as ADS-B, MLAT and FAA. The data from the ADS-B, Mlat and FAA systems are synchronized with the schedule and flight status according to airports and airlines, and all this gives unique experience in aircraft for you on FlightRadar24 and in FlightRadar24 applications.

ADS-B.

The main technology we use to receive flight information is called Automatic Dependent Surveillance-Broadcast (). The principle of operation ADS-B is displayed on the picture on the right.

  1. The aircraft determines its location on the GPS scenery system.
  2. Transponder (transmitter) ADS-B by plane transmits these, and many others, data radio signal
  3. ADS-B Radio Signal is accepted by the receiver
  4. The receiver transmits data to FlightRadar24
  5. The data is shown on the website www.fr24.com and in FlightRadar24 applications

Today, about 60% of all passenger aircraft are equipped with an ADS-B transponder. This percentage is constantly increasing as ADS-B is implemented as a primary radar for aircraft control.

FlightRadar24 has a network of more than 3,000 ADS-B receivers worldwide, which make information about the aircraft and flight parameters from the aircraft ads-b transponders and transmit this information to our servers. Since the frequency is 1090 MHz, the coating of each receiver is approximately 250-400 km (150-250 miles) in all directions from the receiver antenna, since the crirness of the land "lights up" signal. The farther the aircraft from the receiver, the higher it should fly so that you can take the signal from it. Therefore, over the oceans, the reception of ADS-B signals simply nothing.

About 99% of Europe covers ads-b receivers. Good coverage is also in the USA, Canada, Caribbean, Brazil, Russia, Middle East, India, Japan, Thailand, Malaysia, Indonesia, Australia and New Zealand. In the Durga Parts of Light an ADS-B coating varies.

MLAT.

Some regions are covered by several FR24-branded receivers with which it becomes possible to determine the coordinates of the aircraft using the multilateration technology (Multilateration), by calculating the time difference in receiving signals (TDOA). Measuring the difference in the time of receiving signals from the "old" transponders of MODE-A / C aircraft, it becomes possible to calculate the location of the aircraft. Four FR24 receiver and more, should receive signals from one aircraft - this is a prerequisite for MLAT. This implies that the MLAT operation is possible at altitudes above about 10,000-20000 feet, and the probability of receiving a signal of 4 or more receivers increases with an increase in the height of the aircraft flight.

Currently, MLAT covers a limited part of Europe and North America, but quickly expands.

FAA

In addition to the ADS-B and MLAT data, we also receive data from Federal Aviation Administration (FAA) from the USA. In contrast to the ADS-B and MLAT data, which are real-time data, the FAA data has a delay of about 5 minutes by FAA standards. On the map FlightRadar24, all aircraft received from FAA are orange.

The FAA data is based on data from ordinary radars (i.e., aircraft not only with ADS-B transponders) and include the most importantly on commercial flights in the airspace of the United States and Canada + partially over the Atlantic and Pacific Oceans.

What aircraft can be visible on FlightRadar24 (inside the ADS-B coating)

Socialized aircraft models that usually have an ADS-B transponder and visible on FlightRadar24 (inside the ADS-B coating):

  • All AIRBUS models (A300, A310, A318, A319, A320, A321, A330, A340, A350, A380)
  • Antonov AN-148 and An-158
  • ATR 72-600 (MOST New Deliveries)
  • Bae ATP.
  • BAE AVRO RJ70, RJ85, RJ100
  • Boeing 737, 747, 757, 767, 777, 787
  • Bombardier CS100 and CS300
  • Embraer E190 (MOST New Deliveries)
  • Fokker 70 and 100
  • McDonnell Douglas MD-10, MD-11
  • Sukhoi SuperJet 100.
  • Some new Ilyushin and Tupolev (for example IL-96 and TU-204)

Socialized aircraft models that usually do not have an ADS-B transponder and are not visible on FlightRadar24 (inside the ADS-B coating):

  • "Air Force One"
  • Antonov AN-124 and An-225
  • ATR 42, 72 (EXCEPT MOST New Deliveries of ATR 72-600)
  • Boeing 707, 717, 727, 737-200, 747-100, 747-200, 747SP
  • Bae Jetstream 31 and 32
  • All Bombardier CRJ Models
  • All Bombardier Dash Models
  • All Casa Models
  • All Dornier Models
  • All Embraer Models (Except Most New Delivery of Embraer E190)
  • De Havilland Canada DHC-6 Twin Otter
  • Fokker 50.
  • McDonnell Douglas DC-9, MD-8X, MD-90
  • Saab 340 and 2000
  • Most helicopters
  • Most old aircraft
  • Most business jets
  • Most military aircraft
  • Most breeding aircraft

Of course there are exceptions to the rules. Some old A300, A310, A320, B737, B747, B757, B767, MD10, MD11 Airplanes fly without ads-b transponders, which would have made them visible on FlightRadar24 in the ADS-B coverage zones. But there are some Twin Otters, Saab 340, Saab 2000 and MD-80 aircraft with ADS-B transponders who are visible on FlightRadar24.

Airplanes visible on FlightRadar24 (inside the MLAT or FAA coating)

In regions with MLAT or FAA coating, most air traffic apparently regardless of the type of aircraft, however, considering that the MLAT operation is limited by the presence of several FR24 receivers in one reception area and heights above about 10,000-20000 feet. The data provided by FAA often does not contain information on the aircraft registration data.

Blocking information

In order to ensure security and privacy, information about some aircraft is blocked and it is not displayed on the map.

Coating map

In areas where FlightRadar24 has a coating, all main airports are marked with blue markers.

FlightRadar24 is gaining volunteers worldwide to increase its coverage. .

Please keep in mind that the coating and visibility of the aircraft depends on many factors including the type of aircraft, the type of aircraft transponder, the height of the aircraft and the earth's surface and can change. If the plane you are looking for is not visible to FlightRadar24, then it or does not have the necessary transponder or is out of the FlightRadar24 coating zone.

Please visit our FAQ to search for frequently asked questions about FlightRadar24.