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What Is A Radio Direction Finder Used For?

What is a radio direction finder used for? You may also ask the same question and are curious about the unique device. In the airspaces that have been denser lately, air controllers are facing more challenges. They need to coordinate many more aircraft.


To coordinate many more aircraft, air controllers must be in constant radio contact, especially with several pilots at once. The radar system is going to let them get an overview of all aircraft’s positions. To ease them identify the pilot, they are using the radio direction finder device.


What Is A Radio Direction Finder Used For?


The air controllers are using a radio direction finder to get additional directional information. Using the information, the air traffic controller won’t have to work too hard in looking for identification on the screen. A radio direction finder is going to support air traffic control both at checkpoints and airports.


The radio direction finder is going to detect the direction of any calling aircraft before displaying it on a radar image. If the air controller is using some direction finders, simply take cross bearings, and then the air traffic controller can easily determine the aircraft’s position.


When an aircraft is calling, the radar screen is going to display it with a marker. This is going to make it quick and easy to identify any aircraft that is calling. It is also going to avoid any misunderstandings and confusion.


If there is a small airport that has no radar, the radio direction finder is going to be the only direction information source. The radar screen will not display the bearings, the supplied panel will display them. so, what is a radio direction finder used for? In small airports, it can replace the radar.


A Bit History of A Radio Direction Finder


What is a radio direction finder used for

If you need to know more than just what this device is used for, learn about the history of this helpful device. Thus, you’ll get every single piece of information about the device and you’ll understand more about it. Here are some details about the device’s history.

  • The launch of the field

In 1888, Heinrich Hertz launched a radio direction finder’s field with the discovery of the radio waves’ directional properties. Some investors tried to determine the radio signals’ location through mechanical dipole and swung loop antennas.


However, the systems have some limitations, such as in the functionality and portability because of the big size of the device. If you can’t move the device to another location, then what is a radio direction finder used for?

  • The first antennas

A radio direction finder can capture two or even more measurements that came from the same signal. And then the device can use the differences of marginal between the points so that it can locate the source of the signal. This concept was founded in Boulogne, France, in 1910.


The founder of this device was two Italian engineers, Alessandro Tosi, and Ettore Bellini. They created one of the very first antennas for radio direction finders. Their invention made the radio finder practical on a wider scale. It was used for aerial navigation between the 1920s and the 1950s.

  • The huge wireless station

The French government then hired Tosi and Bellini to set up the huge wireless station located at Boulogne. The station allowed the resultant aerial to rotate while the real or actual aerial system stayed fixed. They used two triangular antennas and arranged them at the right angles.


The goal is to get signals. Unlike the first model of the radio direction finder, they connected the antennas to the separate look antenna that wasn’t fixed. The antennas produce signals that were channeled into coils that were wrapped around the wooden frame.

  • The results

The technique used by Bellini and Tosi allowed the device to recreate the signals in the space between the coils. The antennas from Bellini and Tosi were then used in aerial and maritime navigation. They linked the ground stations to radio sets in ships and aircraft.


Now you’ve got the answer for what is a radio direction finder used for? If you need sophisticated devices that can also help governments and intelligence agents, SMS Broadcaster is going to let you get the best one. Only quality devices with awesome features are available in SMS Broadcaster.

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