How to check the signal from a satellite dish. How to select, configure and test a satellite converter. How to determine if the converter is faulty

If you are convinced that your satellite dish is configured correctly, and some television channels do not work, then this is one of the signs that your head (convector) has burned out, or the disk (switch) on the satellite dish has failed.

How to find out that your satellite dish is configured correctly - read the article " ?", or look video clips.
Find out which television channels do not work on your satellite dish using the section " Frequencies and keys"find out whether they should be working at the moment. Also, using this page, you will find out which satellite broadcasts these television channels. The article will help you find out which head (converter) is working on this satellite" " And video clips. Also, the above symptoms are also characteristic of a faulty drive (switch). Therefore, before replacing the head (convector), remove the disc from the circuit. That is, the antenna cable that connects the disik (commutator) and the tuner (receiver) must be disconnected from the disik and connected to the head (commutator) that is supposedly out of order. If after this action previously non-working channels begin to work, then your disk is faulty and you need to replace it with a working one. It will help you replace the disk our channel in Youtybe and our article below “How to identify a faulty drive (switch) and replace it?” Before replacing the head (convector), make sure that the disk ports in your tuner (receiver) are set correctly; this can be done using the article on this page " How to set the disk ports ", or our YouTube channel
If you have done all of the above, then you can start replacing the head (convector). To do this, you need to have: access to a satellite dish, two 10mm open-end wrenches, a cross-shaped screwdriver and pliers. Using pliers, we disconnect the antenna cable from the faulty head, using 10mm open-end wrenches. unscrew the nut and pull out the bolt closest to the head. We remove the head together with the (mount) cartoon. Using a cross-shaped screwdriver, remove the izmult head. We install the new head in the reverse order. In this case, all work must be done this way. so that the new head is in the same place as the old one relative to the satellite dish.
If you have any difficulties, our specialists in Poltava will always be happy to give you advice, tel. 0500566818, 0980049051. (Our YouTube channel https://www.youtube.com/channel/UCSr59O512uDka0Oj0Sc5GGg. We also recommend that you visit the website -http://sputnikovoe-kiev.com.ua/

More detailed information on this topic is in the video film, which is given with “”.

Tel. 050-056-68-18, 098-004-90-51.

Interesting sites about satellite TV -

What is a converter for a satellite dish?

In order for satellite television to work, you need special equipment that receives the signal from the satellite, processes it and broadcasts it to the TV. The required kit consists of: a TV receiver (receiver), a coaxial cable, a converter and a satellite dish.
One of the important components of a satellite antenna is the converter, in common parlance - the head (sometimes also called the emitter). This receiving device is mounted on a holder in front of the antenna and serves to collect signals reflected from the dish, convert them into the radio frequency range for transmission via a coaxial cable to the receiver, and from there to the TV. The converter can also be described as a low-noise amplifier that receives high frequencies from a satellite, converts them to lower ones and amplifies them for transmission over a distance over a cable.

Signs of a malfunction of the Tricolor satellite converter.

A malfunction of the Tricolor TV converter can be determined by several signs.

External signs.

The main external sign of a malfunction in the converter is the presence of damage: oxidized or broken contacts at the junction with the cable, dents, chips, breaks.

Internal (software) features.

The converter does not require any software. Therefore, internal signs of a malfunction include the absence of a signal or its sudden loss. That is, the inability to reproduce the signal due to a change in the location of the dish, the difference in receiving and transmitting frequencies between the converter and the receiver. This also includes overvoltage, moisture, and short circuit.

How to check the Tricolor converter at home?

Based on all the visible signs, you can create an approximate algorithm on how to check the Tricolor TV satellite antenna converter at home for faults.
1. First, you need to visually check the cable that goes from the receiver to the antenna for breaks, kinks, twists, knots, pinched places, and damage to the integrity of the braid. If you have a special device at home called a multimeter, you can use it to “ring” the cable and determine its functionality.
2. So, you have found out that the cable is intact. The next step is to check the satellite dish head for visible damage, the absence of dirt, ice, and snow. You also need to make sure that it is installed as required by the instructions, does not dangle, and is firmly secured.
3. It would be useful to check the contacts at the junctions of the cable, converter and satellite dish.
4. There is a simpler option: if you have a spare working head, you just need to change it and check if the signal appears. Thus, you can understand whether the cause of this problem lies in a faulty converter or in something else.

Variants of faults and methods for their elimination.

If some channels are no longer shown in your satellite system, this may be due to a breakdown of the converter (head) or a malfunction of the switch (disc). The malfunction of these devices usually leads to the non-operation of television channels of one of the satellites. To identify a malfunction of the head or disk, you must turn on any satellite television channel that does not work. Near the satellite antenna, in its rear part, disconnect the antenna cable by unscrewing the F-nut from the suspected faulty head. Then you need to disconnect the central cable from the disc, which goes to the receiver (tuner) and connect it to the supposed faulty head. If after this action previously non-working television channels are shown, it means the disk was faulty. How to replace a faulty disk, see the section or on our YouTube channel. https://www.youtube.com/channel/UCSr59O512uDka0Oj0Sc5GGg. If there are no changes, then the head is faulty or not configured, the antenna cable that goes from the head to the tuner may be broken, the tuner may also be faulty, or the settings of the disk ports in the tuner firmware may be incorrect. See how to adjust the head. How to replace the head, watch the video following the link on our website on the “Videos” page.

How to configure the disik ports in the tuner - read the article or watch our YouTube channel. A break in the antenna cable will be visually visible, then it can be eliminated by replacing the entire cable or by connecting the cable using a coupling. The malfunction of the tuner can be determined by replacing it or by diagnosing it at any TV repair shop.

More detailed information on this topic is in the video film, which is given with.

Interesting sites about satellite TV -

As you probably know, on the dish (satellite dish) there is a satellite converter or converters for different purposes.

No, it’s me, there’s only one goal!

Catch a signal from a satellite and process this signal beautifully. In order for a beautiful picture to appear on the TV.

The LNB or satellite head is installed on the receiving satellite antenna. If you want to watch movies from many satellites, then there will be not one but several satellite converters.

And so we have clarity that converters are designed to convert received signals, namely, to lower the frequency spectrum, linearly transfer it to a lower frequency region.

Why such transformations?

The need for such a conversion arises because the frequencies at which satellites operate are too high to transmit via cable.

The decoding of the abbreviation LNB ambiguously hints at the main characteristic of the converters and this is the noise level, you probably guessed, the lower the noise, the better.

The noise level of modern converters does not play a big role, since it usually ranges from 0.1 to 0.5 decibels and has virtually no effect on the signal quality.

This LNB device or satellite converter is mounted on a special holder called a remote bracket (included in the satellite dish kit) so that the head is in the focus of the antenna mirror.

Satellite converters can be divided into groups according to several criteria.

For broadcasting TV programs from satellite, 2 bands are used. C-band is a frequency band from 3.4 to 4.2 GHz. Ku-band is a frequency band from 10.7 to 12.75 GHz. The Ku-band is too wide, so it is divided into 2 sub-bands: lower (10.7-11.7 GHz) and upper (11.7-12.75 GHz).

The Ku-band converter includes two local oscillators to work with both sub-bands. As a rule, a local oscillator with a frequency of 10.6 GHz is used for the upper subband, and 9.75 GHz for the lower subband.

LNBs come in circular (Circle) and linear (Universal) polarization. There are two types of satellite signal polarization: left-right (circular) and vertical-horizontal (linear).

Different satellite TV operators operate with different polarizations. The most common ones are presented below:

Tricolor TV -CIRCULAR
NTV Plus -CIRCULAR
Telecard - UNIVERSAL
Continent TV -UNIVERSAL
Rainbow TV -UNIVERSAL

LNBs differ in the number of independent outputs. There are converters with one (SINGLE), two (TWIN), four (QUAD) and eight (OCTO) outputs. If you buy a converter to watch satellite TV on only one TV, then you need a converter with one output.

If you intend to install the kit on 2 TVs, then the converter, accordingly, should have two outputs. Sometimes, in order not to run a lot of wires into the apartment, instead of installing, for example, a converter with four outputs, they use a satellite signal divider.

Outwardly, this really looks more aesthetically pleasing and in some cases much more convenient, but we should not forget that when using a divider you get about 5 decibels of noise into the load, which will negatively affect the quality of the signal.

But in some cases, you can’t do without a divider when the house has already been finished and wired for on-air television. In this case, it is impossible to do without a divisor.

Remember!

The average converter can last from one to five years, depending on environmental factors, mainly the amount of precipitation and humidity.

There are also cases when, due to a manufacturing defect, the converter fails within a couple of weeks from the moment of installation.

But even in this case, there is no point in searching for the truth, since it is unrealistic to prove that the cause of the breakdown is the quality of the converter’s assembly, and the warranty, as a rule, does not apply to them.

There is an opinion that it is easier to buy a new one than to repair it. But this is also not a panacea for everyone. Since we are already talking about a new converter, we would like to bring to your attention a new product for reliable 4K reception.

Universal converter with linear polarization (2 outputs).

The Inverto Essential converter is the ideal solution for satellite broadcast reception throughout Europe, allowing you to get the most out of your antenna.

The developers of Inverto Essential took care of the 4G/LTE signal filter, so that new generation mobile networks do not interfere with the excellent reception of this converter!

What is relevant is low noise figure, low phase noise, DVB-S2 (HDTV) and 4K Ultra HD compatible, low power consumption, high Cross-Pole performance.

Main characteristics:

Low phase noise, DVB-S2 (HDTV) compatible
Ultra Low Noise technology ULN+
Low power consumption
High cross-polarization characteristics
High frequency stability
Noise figure: 0.3 dB (ULN+) Typ. (0.7dB Max.)
Input Low range: 10.70-11.70 GHz
Input High range: 11.7-12.75 GHz
Output Low range: 950-1950 MHz
Output High range: 1100-2150 MHz
Low local oscillator frequency: 9.75 GHz
High local oscillator frequency: 10.60 GHz
Waterproof housing
Number of outputs: 2

How to determine if the converter is faulty?

There are not many disease syndromes of satellite converters.

And so, during a manual search, the receiver shows that the signal strength is more than 50 percent, but the quality is 0 percent. But often the same indicators occur when you mistakenly tuned in to another satellite.

Or even like this... sometimes converters “lose polarization”, or only some of the frequencies. However, some channels are not shown. The receiver displays the message “No signal” on them.

As a rule, the effective treatment under any circumstances is to replace the faulty converter with a new one.
It must be remembered that the new converter must be of the same polarization as the previously failed one.

When installing a satellite converter yourself, be careful, try not to change the antenna direction angle, this will save you from having to re-adjust the antenna to the satellite.

Let's sum it up

Converter functions

Converter for converting microwave frequencies to a lower frequency, called intermediate (900–2150 MHz). The signal at this frequency is transmitted through the cable to the receiver and fed to its antenna input.

To reduce the received frequency spectrum, one or two local oscillators are built into the converter - stabilized high-frequency sources. The input frequency is reduced by subtracting the local oscillator frequency from it.

Converter for amplification of the received signal. After all, the signal from the satellite is received with very low power, which is completely unacceptable in the paths of receiving equipment. Therefore, the second, no less important, function of the converter is amplification.

The 13/18 V signal is used in modern universal converters only to switch polarization.

Universal converters differ from other full-range Ku-band converters in the versatility of the signals that control band switching and polarization, and also in the fact that these signals are transmitted over a single cable with an intermediate frequency.

If there is a need to receive broadcasts in both bands (C- and Ku-), you can go in three ways:

Firstly, install two converters on the antenna, each with its own feed and polarizer. But in this case, the feed of at least one converter will not be entirely in the focus of the antenna, which will somewhat reduce the directivity of the antenna;

Secondly, purchase a design called a C/Ku rotor, which includes irradiators for the C and Ku bands, dividing the received flow into two parts. C/Ku rotors are produced combined with electromechanical polarizers.

But at the same time, there are significant losses in the power of Ku-band signals and frequent failure of the moving parts of the electromechanical polarizer, especially at low temperatures;

Thirdly, install a combined converter for receiving C- and Ku-bands, which is still inferior to separate converters in terms of technical characteristics.

Converters must be sealed. Otherwise, due to daily temperature fluctuations, condensation forms inside the converter, which leads to a deterioration in its parameters and, ultimately, to failure.

In addition to insufficient tightness, there are other types of structural defects, for example, high damage due to exposure to sunlight or temperature changes.

We got to the place about with an offset satellite dish, read it.

Breakdowns do happen, and it is quite difficult to insure against such pitfalls when purchasing. Here's a video that can help when repairing the head:

In addition, we will look specifically at setting up the LNB, what and why, and most importantly, what I do before the onset of cold weather and also recommend the same in the spring.

Good luck, Friends!

Today we will look at:

A satellite converter is a special device necessary to lower the frequency of electromagnetic waves that are transmitted by satellite broadcast in two bands: Ku band (107 - 1275 GHz) and C band (35 - 42 GHz). The converter for the satellite dish, in turn, lowers the spectrum of these frequencies to 900 - 2100 MHz, which is enough not to be scattered in the cable. Today in this article we will talk about what you need to pay attention to when you choose a converter for satellite TV, as well as how to choose the right one and how to check this device for its further correct operation.

Converter selection

Choosing a device for converting signals into low frequencies is one of the most important things when installing a satellite dish. There are many factors to consider, many of which are not entirely obvious and may not be understood. However, in order to make the choice of a converter for a satellite dish more correct, we have prepared several sections for you, each of which discussed one or another aspect that should be paid attention to.

Range support

When choosing a device, you always need to pay attention to several factors, the main one being the frequency range used. As we said earlier, there are two types of bands that can be used for broadcasting - these are the Ku and C bands.

European-made satellites typically transmit Ku waves. Russian satellites, in turn, can broadcast both in the Ku-band and in the C-band. Based on this, you should decide before purchasing what type of satellite converter you want to purchase. As observations show, there are plenty of devices on the market capable of working with the Ku-band and they are the most popular, although there are devices of mixed types. If you need an example of this, go to any online store and see for yourself.

Signal polarization

If we take converters that work with the Ku band, then we also need to take into account the type of LNB (it can be linear or circular). LNB is a special device that is mounted in front of a satellite dish and amplifies incoming signals. If we don’t go into detail about the differences between linear and circular amplifiers, we’ll tell you right away that by purchasing a universal converter for a satellite dish, you will receive a linear LNB, which can be made circular at any time.

For the curious, let’s say that a circular satellite converter differs from a linear converter in that they work with different polarizations, of which there are two types:

• circular;
• linear.

Different operators use different polarization, therefore, which converter to choose (satellite circular or linear) is up to you to decide, adapting to the operator. However, as we said earlier, universal converters can easily solve this problem. Also, such devices are perfect for those who are connected to several operators at the same time, which use different polarization.

Noise figure and noise temperature

If you have your eye on a satellite converter that works with Ku-type waves, then you need to pay attention to the noise figure, which reflects the minimum value of the satellite signal reception level. Accordingly, the higher this value, the better.

For converters that work with C-waves, an indicator such as noise temperature is taken into account. Here everything is a little opposite: the lower the noise temperature value, the better the satellite TV converter’s ability to receive incoming signals. The optimal noise temperature for today is considered to be 15 K.

In addition to the above, you should pay attention to the number of outputs of the converter, because you can easily purchase a satellite converter with 2 outputs in case you need more outputs. There are devices with 1, 2, 4 and 8 independent outputs. In principle, you can always purchase a device with eight outputs, but you may not use all of them, which will only lead to a waste of money. The main principle for choosing the number of outputs is that their number should be equal to the number of TVs in the house.

Device setup

Setting up the converter always begins with the correct installation of the plate itself. Understanding how to do this is not difficult. Another thing is to do all this in practice:

When you achieve an acceptable antenna angle, you can proceed to adjusting the satellite TV converter itself to strengthen the incoming signal:

• if you rotate the satellite converter in one direction or another, you can strengthen the incoming signal;
• It is not recommended to move the device to the mirror, since changing the angle of adjustment will have to be done first.

When you receive the highest quality satellite signal, secure the dish and satellite antenna converter more firmly and begin checking the quality of television broadcasting. The next step is software configuration, which will be discussed later.

How to check a satellite converter

You can check the correct installation of the satellite TV converter by trying to find a channel:

Using the instructions described in the article, you can set up the converter for both NTV and MTS yourself. However, do not forget that, despite the fact that in words everything may look very simple, in reality everything can turn out to be much more complicated. And to make it easier for you in your endeavors, we are ready to answer all your questions on this topic in the comments below.

If you are not confident in your actions and think that your actions can somehow harm the final state of the entire structure, then we strongly recommend that you still seek help from specialists who will help you solve this problem.