Xiaomi’s Android TV smart TVs offer users a wide range of entertainment options, from online cinemas to games. However, despite the abundance of streaming services, terrestrial and cable TV remain popular sources of content for millions of viewers. The process of initial signal reception adjustment often seems difficult due to the specifics of the MIUI TV or Google TV interface, which is different from the usual menus of older TVs.
Device owners often find that automatic search does not find all available stations, or the image quality leaves much to be desired. This may be due to the wrong choice of antenna type, outdated tuner drivers or regional settings. In this article, we will discuss in detail all the stages of connection, from the physical connection of the antenna to fine-tuning the frequencies manually so that you can enjoy the TV in high quality.
We're going to look at not only standard procedures, but also ways to solve common problems, such as no signal or channel listing. Understanding how DVB-T2 digital tuner works will help you avoid typical mistakes. Let's start by looking at the process that will turn your TV into a full-fledged media center.
Preparation of equipment and inspection of connections
Before you go to the software settings, you need to make sure that the physical connection of the antenna cable is correct. Unlike analog TVs, modern Xiaomi models are sensitive to signal quality, so using damaged cables or cheap adapters can lead to permanent image freezes. ANT IN back-end.
If you use an active antenna (amplifier), check if it is powered.Many digital antennas require a separate power source, which is often supplied through a power supply system. USB-The port of the TV itself or from the 220V network. Lack of power on the active antenna is one of the most common reasons why the TV writes "No signal", even if the cable is serviceable.
⚠️ Warning: Never connect a satellite TV cable directly to the TV's antenna input without a suitable receiver. DVB-T2/C permanently.
For residents of apartment buildings using collective antennas, it is important to know the type of incoming signal. In most regions of Russia and CIS countries, the DVB-T2 digital broadcasting standard is used. If your house is connected to a cable provider, the setting will be performed in DVB-C mode, which requires clarification of the parameters from the service provider.
Automatic Channel Configuration through the Menu
The easiest and fastest way to get a list of channels is to use the automatic search function, which is suitable for most users, because the system itself scans the entire frequency range and sorts the resources found. To start the process, you will need a remote control.
Press the settings button on the remote or select the gear icon in the upper right corner of the main screen. In the menu that opens, find the Settings section and go to the Channels category. Here you will see the Channel Search option, which initializes the scan. The system will suggest choosing the signal source: antenna or cable.
☑️ Checklist before auto search
Once the source is selected, the scanning process will begin, which can take 2 to 10 minutes depending on the number of frequencies available, during which time the progress scale and current signal level will be displayed on the screen, and it is not recommended to interrupt this process, as this may lead to an incomplete list of available programs.
If the automatic search is successful, you will see a message about the number of TV and radio channels found. The system will automatically assign numbers and names if the relevant information is broadcast in the data stream. However, in some cases, the list may be empty or contain not all available channels, which requires a transition to manual configuration.
Manual frequency setting and list sorting
Manual mode is required when automation cannot find certain frequencies or if you want to add channels from a particular cable TV provider. To enter this mode in the channel search menu, select Manual setting or Channel Editing. Here you will need to enter the exact frequency settings.
The main parameters for manual adjustment are frequency (in MHz), modulation and bandwidth, which is usually provided by the service provider or can be found on specialized coverage map sites for broadcasting. In the frequency field, type a value, for example, 570,000 kHz, and start a search for a specific frequency.
⚠️ Note: When manually configured cable TV, incorrectly selected modulation (QAM) This will cause the TV to see the signal but not be able to decode it.
Once you scan the frequency, you can sort the channels by removing the unwanted ones or changing their order. Sorting allows you to move your favorite stations to the top of the list, assigning them numbers with 1, 2, 3, and so on, which is especially convenient for older users who find it difficult to navigate a long list of hundreds of positions.
Where can I find the exact frequency for my city?
Table of the main parameters of digital broadcasting
To properly manually adjust, it is important to understand the differences between broadcast standards. Below is a table with the basic parameters that may be required when manually entering data. Values can vary by region and operator.
| Parameter | DVB-T2 (Ether) | DVB-C (Cable) | Description |
|---|---|---|---|
| Frequency | 498 - 858 MHz | 100 - 860 MHz | The frequency range in which the search is conducted |
| Modulation. | QPSK, 16-QAM, 64-QAM | 16-QAM, 64-QAM, 256-QAM | Method of signal encoding |
| Strip width | 8 MHz | 8 MHz | Standard channel width |
| Flow speed | Auto / 3/4 / 2/3 | Automobile | FEC (Forward Error Correction) |
Using the right parameters from the table greatly improves the chances of successful reception of the signal, especially in areas of uncertain reception. If the automatic mode misses some multiplexes, manual input of the frequency of a particular data packet often solves the problem.
Solving problems with signal search and quality
One common problem is that the Xiaomi TV doesn’t find any channels. First of all, check if the antenna power is on the TV menu. Go to Settings → Channels → Power the antenna and switch the slider to the On position. This is only true for active antennas.
If the channels are there, but the image is constantly falling into squares or fading, the problem is low signal strength, in which case using an external signal amplifier or replacing the antenna with a more powerful one aimed towards the nearest tower will help, and also try to change the position of the antenna in the room.
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Use the Digital Ether Map app on your smartphone to accurately determine the direction and distance to the nearest tower, which will help you to correctly orient the antenna.
In some cases, the channel list may be reset after the TV is turned off, indicating an internal memory overflow or software failure, try resetting the channels to the factory and re-search the old records.
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The digital signal reception quality is binary: either the picture is perfect or it is not at all. "Snow" on the screen is impossible when digital broadcasting, the appearance of squares means a critical drop in the signal level.
Updating the tuner software
Manufacturers regularly release firmware updates that may contain fixes for the tuner module. If you've tried all methods but the TV isn't stable, check for system updates. Go to Settings → About TV → System Update.
Installing the latest version of the software can add support for new frequencies or fix audio decoding errors, and it is important that the TV is connected to a stable Wi-Fi network or Ethernet cable during the upgrade, and the process is not interrupted.
⚠️ Warning: Do not turn the TV off the socket during system upgrades, which can damage the software and require expensive repairs at the service center.
After the update, it is recommended to re-examine the full channel search, as new scanning algorithms can find previously unavailable resources. Regular software updates are the best prevention of many software failures in the operation of a smart TV.