How to choose and how to check a satellite converter

The converter is the most important part in
satellite television , the quality of the signal depends on it, it is a frequency and polarization converter and can catch different frequencies. In this article we will talk about its meaning and how to choose it, what you should pay attention to.

What is a satellite converter and what does it serve

The satellite converter provides reception of a signal that is reflected from the surface of the antenna and transmitted in amplified form to the satellite TV tuner. This is a complex mechanism that involves the basic laws of physics. You can buy such a converter at an affordable price.

The main characteristic of the converter is additional noise, measured in decibels. When there is little noise, the image on the TV is not distorted much.

In science, a converter is defined as a receiver that processes a satellite signal. In fact, there are two devices in a single monolithic block. The first device amplifies the signal received from the satellite. This is where the level of additional noise plays the main role. At lower values, there will be much less interference, – 0.3 – 0.5 dB.

The name LNB or low noise block is also related to the satellite converter.

The second device converts wave frequencies. With their help, the signal is transmitted to the receiver or TV via remote access. Offset satellite dish is optimal for signal transmission. Here is an elementary explanation of how it all works:
The converter makes the received signal stronger. This helps to compensate for losses in the
cable that connects the antenna to the receiver. The receiver adds its own noise to the signal. They have constant power. The satellite signal from the antenna alone is not strong, so it gets weaker inside the cable, hence it needs to be amplified. However, the device introduces its own noise into the signal, so it is important that they are small. The converter can be purchased from different brands.

It is necessary to determine in which band, “Ku” or “C”, it is applied. The big difference between the devices lies in their operation in different frequency ranges. The frequency converter works in a wide variety of weather conditions.

The principle of operation of the satellite converter

The converter collects the waves, converts them into signals of electrical origin, which transmit the signal to the receiver. The LNB converter is placed at the focus of the antenna, where the waves are focused. The signal is amplified in the converter, converted to a lower frequency. To transfer a signal from C or Ki to the L-band, you need a local oscillator that generates a radio signal. The mixer helps to get the third signal, which is the difference of the first two. As a result, it turns out.

In the Ki range, in the opposite way, the frequency of the local oscillator is calculated from the frequency of the signal received from the satellite. There is also another feature. You cannot transfer the entire Ki-band to the L-band. Either the converter has one local oscillator and does not cover the entire Ki-band, or the satellite signal goes into the L-band only partially, the bottom or top of the range is involved. The second type of converters is
universal, it has 2 local oscillators, the second of which covers the top of the Ku band. Ranges are switched using an electronic key controlled by a special signal. Inside the converter is a metal construction. The filling of the device is hidden in a metal case, where the output for the F-connector is inserted. The converter can have a different number of outputs. Sometimes the number reaches eight.

This is very convenient for everyday use. Sometimes there may be several tuners that allow you to optimize the signal for several TVs.

How to check the converter for operability

It is very easy to check the converter for serviceability. If you have problems with the TV’s perception of the signal, you need to see if the matter is really in the converter. First you need to check the cable from the receiver to the antenna by eye, if it is broken anywhere. If the cable is intact, you need to check the dish head, then the contacts with the wires, there is an easier option, namely, change this head and see if the signal has changed. Then you can understand whether the cause of the problem is in a broken converter or in another node. How to choose a satellite head and check the satellite dish converter for performance, satellite dish converters with two, three and four outputs: https://youtu.be/s6IW8HPgTEE

How to choose LNB, what to look for

Noise figure is the main parameter for choosing a converter. It is important to consider when choosing the frequency range, phase noise, current used, polarity. The most important components are noise figure and gain. In a good way, the noise figure should be indicated on the packaging.

If it is not specified, do not buy the device. At the same time, even a low coefficient does not guarantee that the converter will be of high quality. This parameter is checked only in the laboratory. Therefore, it is better to buy devices only in those places that have been tested and have been able to give a good account of themselves. A universal converter can be bought inexpensively on the Internet and in radio parts stores. This is the best option. How to choose a satellite converter: https://youtu.be/nP7UpiEubro

Specific Models

The converter for a satellite dish from Tricolor is popular because of its reliability, and besides, you can buy it at an affordable price. It will not be expensive, but it will provide the owners of the house with a high-quality signal.
Satellite head from Tricolor [/ caption] ALYNO satellite television has a combined C + Ku converter based on two converters. It has a dependent output “Ferret direct focus Twin-Twin”, which provides constant signal reception in two ranges at once: C and Ku. Works only together with passive multiswitch 4/2. Made for offset antennas. Polyethylene caps. General Satellite GSLF-51E converter with waveguide diameter: 40 mm (standard); connector type: 75 F-type is also popular among subscribers. Converter Galaxy Innovations GI-301 is a circular polarization converter. It is very convenient to use in daily life.

Design and installation on the antenna

Electromagnetic radio waves fall on the mirror. Since its shape has the form of a sphere, the signal, falling on the mirror area, is reflected only in a single direction, a beam is formed that is focused at one point. The necessary device is placed in the “focus” – the satellite converter itself. This beam falls on him. The main elements of the converter are the irradiator, the waveguide through which the signal goes, the electronic unit that converts waves into pulses. The converter converts the frequency, polarization, provides a high-quality signal. Designed for watching TV in high quality.

Mistakes when choosing and installing, how to avoid them

The quality of the case is often chosen improperly. Workplace – street. During use, the device is affected by temperature fluctuations. Therefore, the body of the device must be of high quality. The removable sun cover must be resistant to radiation. Therefore, you should again choose high-quality material.

Important! With any depressurization of the device, atmospheric moisture will get there, which will lead to breakage.

The body color should not be bright, otherwise it will attract birds that will peck at bright plastic.
Before setting up, it is important to see how the device is capable of working.

Important! A working device shows a signal even if
the antenna is not tuned to the satellite .

Questions and answers

Converter or Converter? That’s right: a converter, and in any value. This complies with the rules of the Russian language and foreign languages.
Which converter is suitable for receiving MTS TV ? Answer: having a linear Ku-band polarization. It will work perfectly.
At what price can you buy a satellite converter? The device can be purchased at a price of 350 rubles. The converter is one of the main parts of satellite television. It converts the frequency, changes the polarization. Therefore, it is important to purchase the right head, which has a small amount of noise and is suitable for a particular range. So, the converter must be chosen very carefully.