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Video: ❶ How To Strengthen The Antenna Signal
2023 Author: Madeline Holiday | [email protected]. Last modified: 2023-05-24 11:49
To improve the quality of the received image and "catch" previously inaccessible channels, it is not necessary to buy a new powerful antenna. The receiving capacity of the antenna depends on various external factors, on the shape and design, changing which, you can adjust the image quality. Location: Location:
The quality of the television signal directly depends on the location of the antenna. Concrete walls, metal fences and structures greatly interfere with the signal transmission, therefore, it is most often located outside the house, on a wall or roof. If you know where the nearest transmitter tower is, the antenna should be turned in its direction.
In general, customization most often requires a certain amount of time and effort. It is necessary to move and twist the antenna, while constantly monitoring the image quality.
Two or more antennas can be used to get a clearer signal. They are located as high as possible, at the same distance from the switch.
A special TV signal amplifier can be connected to almost any antenna. It operates on a 220 V network; you can buy an amplifier in most electronics stores. For the correct choice, it is important to know some parameters: the noise figure (it should be as low as possible, preferably no more than 2 dB), the gain Ku (calculated based on the presence of cable branches and its length).
Most often, the antenna design is thought out taking into account the standard search for the terrestrial signal. It can be changed with any conductive metal object: wire, cable, balcony dryer, central heating batteries, etc. Aluminum and copper items with a large surface area are best suited. On the other hand, metal objects that are not in contact with the antenna interrupt the signal.
Some antennas require special tuning before use. You should check if the correct frequency range is set to receive a particular signal.
In-phase lattice effect
If you take several identical antennas and space them horizontally and vertically so that the phases of the signal are the same in them, then you can achieve significant amplification. For example, if a single antenna gives a factor of 7 dB, then a double antenna - up to 10 dB, consisting of four parts - up to 12 dB, etc.
Basic rules for in-phase lattice: parts can be purchased or made by yourself, but always the same. It is important that the "floors" and "rows" are completely symmetrical, with the same length of lines, cable jumpers. For fixation, frames made of insulating materials such as wood or plastic are used.