Today, many people prefer satellite TV. However, keep in mind that the antenna needs to be tuned. For this purpose, special devices are presented on the market that are capable of determining the exact location of satellites. This process is carried out using receivers. Capacitors are also used to change the threshold frequency of the signal.
It is quite difficult to assemble a device of this type on your own at home. However, if you study the basic configurations of devices, then you can choose the simplest model for assembly. It is also important to remember that for the correct use of the modification it must be tested. Features of the device settings depend on the type of model.
Beam transistor
To make this type of device for tuning satellite dishes with your own hands today is quite difficult. However, if you find all the necessary components, then you can understand this issue. First of all, a good receiver is sought for the device. Typically, it is selected asynchronous type. However, other modifications are also available on the market. In terms of parameters, they are very different.
The advantage of asynchronous receivers is their stability. They are also able to work at high frequencies. After installing the specified component, it is necessary to solder the resistors directly. To this end, you will have to use a blowtorch. However, the contacts before this must be cleaned with any metal object. Capacitors for this model are more suitable for field type. Their capacity is quite significant, but bandwidth is sometimes disappointing. Filters for the device are most often selected corrective type. The display for the model must be selected separately. Directly used microcircuits for receivers are class KK20.
Simple setup of the device on beam transistors
Tuning a satellite antenna tuner on its own occurs in short waves. First of all, the user must reset the signal. To do this, the sensitivity of the device must be reduced as much as possible. After that, it is important to check the settings. As an example, consider the Hotbird antenna. The transmitter is mounted on it shortwave.
Hotbird satellite dish tuning is done at a threshold frequency of 50 Hz. Then gradually it needs to be increased. In this case, satellite data must be known in advance. In this case, much depends on the type of receiver. After increasing the threshold frequency, the sensitivity must be reduced. This should be done until the signal is completely zeroed.
Laser Receiver Model
It’s quite difficult to make a DIY device for tuning satellite dishes with your laser receiver at home. First of all, the case is naturally selected for the model. At the same time, displays are often used with a P2P series modulator. Directly zener diodes for the model are suitable only for broadband.
However, some experts still prefer selective analogues. Install the receiver near the filter. In this case, the zener diode is soldered last. To test the model, you must use the Spectra program. Triggers for devices of this type are rarely used. The sensitivity parameter on average should be no more than 4 microns. Also, before checking the device, you must verify the integrity of the receiver.
Easy setup of the laser receiver model
Tuning a satellite antenna tuner independently occurs at a frequency of no more than 30 Hz. In this case, you must first lower the sensitivity of the device. After that, the satellite threshold frequency is selected. If the display system shows an increase in signal interruption, then the sensitivity must be increased. As a result, the user must have full synchronization with the satellite.
Using binary tires
Making a do-it-yourself device for setting up satellite dishes with a binary bus is not a big problem. The receiver in this case is more appropriate to choose the optical type. Today it is quite expensive, but it can work a lot. Resistors for models are suitable only non-chromatic type. However, before installing them, the bus is soldered directly. Due to its use, the capabilities of the device significantly increase. However, it should be noted that in this case, the modulator can only be used with the P2P series. The filters for the system are selected corrective type. To test the model, you can use the "Spectrum" (a program for setting up a satellite dish).
Precision tracking devices
You can assemble an accurate tracking device for tuning satellite dishes with your own hands using a wave receiver. Finding it at a radio store is pretty simple. For the price it is not very expensive. Capacitors with a capacity of at least 5 pF are suitable for this type of receiver. Filters deserve special attention in the device. Most often they are selected based on the power of the resistors. Chips of the PP20 type are often used as a modulator. It should also be noted that binary buses are rarely installed on such modifications.
Latitude Converter Devices
There are satellite antenna tuning devices of this type (market price) in the region of 3 thousand rubles. However, you can collect them yourself. They differ in a high threshold frequency parameter. In this case, the setup process is pretty fast. Receivers in models are often used optical type. There are three capacitors needed for the system.
However, their capacitance should not exceed 3 pF. All this is necessary so that the stability of the system is not violated even at a high clock frequency. Zener diodes for the model are appropriate to use the angular type. However, wave distortions in this case can be quite serious.
Fine tuning model with a latitudinal converter
This type of instrument is tuned at a threshold frequency of 35 Hz. First of all, to adjust the device, you need to set the satellite parameters. After that, it is important to check the sensitivity of the model. The indicator in this case should be at zero. The next step is to gradually increase the threshold frequency. In this case, the pairing of signals is checked on the display. In order for satellite television to adjust, the resonant frequency must ultimately stabilize. To test the device, the Ropit program is used.
Using Pulse Converters
Devices with pulse converters today are pretty much in demand. They are suitable for tuning selective type antennas. Receivers are most often selected for devices of the optical type. In this case, the assembly of the model must begin with the installation of feed-through capacitors with a display. In this case, the regulator can be taken only rotary type.
To stabilize the signal transmission process, only chromatic resistors are used. In this case, zener diodes are used quite rarely. Total thyristors for the device will require two. One of them should be installed directly at the converter. In this case, the second thyristor is mounted near the modulator.
Application of cyclic capacitors
Cyclic capacitor devices have been used to tune antennas for a very long time. Receivers for them are very diverse. To assemble the model yourself, first of all, you should choose a body. After that, the modulator is installed directly to adjust the threshold frequency of the device.
The next step is to fix the capacitors on the chip using a blowtorch. Then you just have to buy chromatic resistors. The converter in this case is advisable to use a pulse type. Many experts recommend the use of magnetic filters. The average sensitivity of the device must by default be at 3 microns. For short-wave systems such devices are ideally suited.
Setting up a model with cyclic capacitors
To adjust the device, it is necessary first of all to test it for serviceability. To do this, it is important to use the Spectra (a program for setting up a satellite dish). The system is checked, as a rule, at a frequency of not more than 55 Hz. In this case, the sensitivity of the device must be located at the level of 5 microns. Only after testing can you start directly to configure the antenna. For this, the satellite parameters are selected first of all.
As an example, you can consider the antenna "Telecard". It relates to short-wave models. The configuration of the Telecard satellite dish occurs at a frequency of 30 Hz. When setting parameters, you need to pay attention to the pairing indicator. If it deviates from its original value, then the sensitivity must be reduced. Next, a threshold frequency of 40 Hz is set. At this stage, the signal should stabilize.
Low sensitivity modifications
If a satellite TV is connected, the antenna can be tuned using a low-sensitivity model. Today it is quite common. However, her disadvantages are very significant. First of all, they are associated with poor stabilization of models. They only use optical receivers.
In this case, the sensitivity on average does not exceed 2 microns. All this is due to the fact that the filters in this case are suitable only for the magnetic type. However, the main advantage of the models is the quick adjustment of low-frequency zener diodes. Thus, the pairing of signals occurs rather quickly. For beginners, such devices are ideal.