Satellite television is a system for receiving a television signal from a transmitter to a consumer via satellite. To install satellite TV, you need to purchase special equipment, mount it and configure it to receive a signal from a geostationary spacecraft. To watch programs, a TV or computer monitor with a built-in DVB-S card is used.
Content
- Equipment set
- Item overview
- Types and principle of operation of antennas
- Self-installation
- Connecting and setting up a dish
Equipment set
The operators Tricolor-TV, NTV + and Raduga-TV are especially popular among satellite TV users. Therefore, it is better to purchase equipment from these manufacturers. The signal receiving kit includes:
-
Receiver (tuner) - a converter of the received signal for viewing on TV. - Antenna - the device is a dish for receiving a signal from a satellite.
- Convector - a device designed to collect reflected signals from the antenna and transmit them to the receiver.
- Mounting bracket - metal structure, with the help of which the antenna is installed and oriented.
- Dissek (DiSEq) - provides connection of several convectors into one cable.
In addition to these basic parts, the kit includes adapters, a cable between the receiver and the TV, connectors for connecting satellite equipment.
Item overview
When purchasing an antenna, you should pay attention to its diameter. In the area of good signal reception, a dish with a diameter of 90 cm is sufficient. When receiving multiple signals, the antenna diameter is selected based on the degree distance between the satellites. The polarization of the converter is selected depending on the transmission of satellite waves. It happens:
- circular;
- linear.
If the waves come from the Eutelast 36 satellite, which is designed to transmit the Tricolor and NTV + programs for the European part of Russia, then a convector with circular polarization is needed. When operating two TVs, a convector with two outputs is required to connect them.
The cymbal bracket should be secured with 3 or 4 anchor bolts to provide the antenna with environmental resistance. The rack where the cymbal clamps are attached should provide free rotation for ease of adjustment. When receiving a signal from multiple satellites, you can use multifeed.
Types and principle of operation of antennas
Before installing a satellite dish, it is advisable to familiarize yourself with its types and principle of operation. The receiving antenna is a parabolic dish that independently receives satellite microwaves from television repeaters.
The parabolic shape allows the incoming signal to be reflected in the center of the structure. Closer to the focus of the dish is an automatically tuned feed horn, which amplifies the received signal. Convectors select radio waves and transmit them to the converter.
It converts radio waves and electromagnetic signals into electrical components. The signal from the converter, or receiver, goes to the television receiver. There are two types of antennas:
- offset;
- direct focus.
Direct focus antennas are positioned so that the signal is collected directly in the center of the dish. In offset designs, the receiving focus is slightly offset, and they are mounted almost vertically, which excludes the accumulation of atmospheric precipitation. In direct focus antennas, the convector covers a significant part of the received area, which becomes almost invisible with an increase in the diagonal.
Self-installation
Previously, before choosing satellite equipment, it is advisable to decide on the choice of satellite. If the side of the house falls into the area of transmitting waves, then the antenna can be installed directly on the outer wall. Some owners manage to install and set up a plate on a loggia or glassed-in balcony.
If necessary, the structure is mounted directly on the roof of the house. The location of the bracket is determined using a compass, orienting it according to the cardinal points. When placing the antenna on the roof, you can use the already installed samples and copy the position of the existing dishes.
Operators such as Tricolor put their logos on their equipment, and a similar copy can be found. First, the bracket fasteners are marked, then holes are drilled with a punch. With the help of anchor bolts, the bracket is carefully and securely attracted to the wall.
The fasteners must be able to withstand strong winds on the antenna. With the use of clamps, the plate is mounted on the vertical support of the bracket and is slightly attracted. Next, they begin to determine the location of the antenna and set up satellite TV.
Connecting and setting up a dish
Before connecting the antenna, put a special lug on the cable. To do this, clean 1.5 cm of insulation from the edge of the cable, cut off the foil, clean the central core by 1 cm and screw the tip so that the wire does not protrude outward. In this way, both ends of the cable are prepared.
Then connect one end to the convector, and the other to the receiver. If there are several convectors, then the connection is made through the disc. To set up a satellite dish yourself, without outside help, you can resort to using special equipment. It is installed in the gap between the receiver and the convector.
As soon as the device starts to emit a sound signal when the dish rotates, it means that the antenna is installed directly on the satellite. In the absence of this device, you will have to constantly contact the tuner and check the signal quality. This operation will take much longer.
When the signal quality is within 75%, then the plate can be firmly fixed with nuts on the bracket. At the same time, the television cable is fastened so that there are no unnecessary loops. Tuning of television channels on the receiver is carried out according to the attached instructions.
