Xiaomi’s current Smart TVs and Redmi sub-brand are based on Android TV, making the initial configuration process intuitive but sometimes demanding attention to detail. After connecting an antenna cable, many users find that automatic search does not find broadcasts or only shows a fraction of the available multiplexes, often due not to hardware breakdown, but to the wrong choice of signal source or regional settings.
In this article, we will discuss all the steps necessary to consistently receive DVB-T2 terrestrial digital television. You will learn how to properly connect the antenna, perform manual and automatic adjustments, and what to do if the TV writes “No signal” or “Channels not found.” The right sequence of actions will allow you to enjoy content in high resolution without delays and image artifacts.
Before you go to software settings, you need to make sure that the physical integrity of the connections is checked. Check whether the antenna plug is tightly inserted into the Antenna In socket on the back of the TV. If you use an indoor antenna with an active amplifier, make sure that it is connected to the power source, as passive models in the conditions of remoteness from the TV tower may not provide a stable signal.
Preparation of equipment and selection of antenna
The quality of reception of the digital signal depends on the characteristics of the receiving device. For the DVB-T2 standard, which is used in Russia and CIS countries, a decimeter antenna (DMV) is required. Old meter antennas that worked in the analog era will not be able to decode the digital stream, and the TV will show a black screen or an error message.
If you live in an urban area, a room amplifier is often enough, but in rural areas or on lower floors of houses, shadow areas will require an external directional antenna mounted on the roof or facade of a building, and it is also important to check the integrity of the coaxial cable: bending, insulation damage, or oxidized contacts can complete the signal.
- 📡 Type of antenna: Make sure the antenna supports the DMV range (300–900 MHz) and standard DVB-T2.
- 🔌 Cable: Use a 75 Ohm cable, avoid twists and use only factory F connectors.
- 🔋 Power: Active antennas require connection to the USB-port of the television or separate outlet 5V/12V.
⚠️ Note: Do not connect a satellite or cable cable (where the signal is directly from the provider without a console) directly to the antenna socket unless you have an access card. CI+ And the contract, which could damage the tuner.
📊 What type of antenna are you using?
Power room
Street directional
Common house
Cable from the provider
Automatic setup of digital channels
The easiest way to find available channels is to use the autosearch function. To do this, on the remote control, click the gear button or the Menu button to enter the main menu. In the Android TV interface, select Settings (the gear icon in the upper right corner), then go to the Channels category.
From the menu that opens, select Enter/Antenna or Ether antenna. The system will select a country; for frequency plans to work correctly, it is important to specify Russia or your current country of residence. After that, click on AutoSearch channels. The TV will start scanning all frequencies, the process can take from 2 to 5 minutes.
The scan shows the progress bar and the number of channels found, and it is not recommended to interrupt this process, as this may lead to incorrect preservation of the broadcast list, and after the procedure, the TV will automatically switch to the first channel found.
What if the search engine found 0 channels?
If the list is empty after the scan is completed, check if the tuner mode is activated. In some Xiaomi models, you need to manually switch the signal source from Cable or Satellite to Antenna before starting the search. Also try to disconnect the antenna and reconnect it, making sure the lock clicks. Manual frequency and multiplex setting In situations where the automatic mode does not find all channel packets or the signal is unstable, manual setting is applied. Digital television is transmitted in packets called multiplexes. In Russia, there are two of them: the first.-1) and the second (RTMS)-2). Each multiplex is broadcast on a specific physical frequency (TBC). For manual settings, go to the Channels menu. → Manual setting. Here you need to enter the channel number (TBC) for your region. You can find out the exact frequencies of the nearest towers on the official website of the Russian Television and Radio Broadcasting Network (RTRS) by entering your address in an interactive map, 35 or 54) And you'll see a scale of quality and signal strength, if you see the green bars and the numbers above. 50-60%, press the button OK Repeat the procedure for the second multiplex by changing the frequency. DVB-T2 European standard for digital broadcasting UMB frequency range (UHF) Decimeter waves (300–862 MHz) Modulation 64 QAM / 256 QAM Automatically or according to the RTRS card Number of multiplexes 2 (basic) 20 channel + High quality radio Removal of signal problems and artifacts Digital signal differs from analogue in that it is either there or there is none. If the signal level is weak, instead of ripples, you will see the image “quaking”, the picture fading or the complete absence of the video stream. Often the problem lies in overloading the antenna amplifier if you are too close to the TV tower. Try to turn off the power of the active antenna (if it is fed through the cable) and start the search again. Sometimes this allows the Xiaomi tuner to correctly synchronize with the transmitter. It is also worth checking whether the reception is affected by powerful sources of interference: microwaves, Wi-Fi routers or metal structures of the building. If the channels are found, but periodically disappear, try to reset the channels, after you have a search for the channel, then you fix everything on the menu. 📉 Low level: Check the integrity of the cable, replace the plugs, try to lift the antenna higher. 📶 Signal jumps: Make sure there are no running electrical appliances around that cause interference. 🔄 Frequent interruptions: Try manually adjusting the frequency, sometimes the auto-choice of lane width doesn't work properly. ⚠️ Attention: If the signal quality scale is 0% even when the antenna is connected, the tuner in the TV may be faulty or the antenna amplifier burned from a voltage surge. In this case, only replacing the equipment will help. IPTV Owners of Xiaomi Mi TVs TV redmi TV They have access to a lot of content over the Internet, and if the broadcasting is not catching well, it's a great solution to install apps to watch. IPTV. This allows you to watch hundreds of channels in high resolution over an Internet connection. To do this, go to the Google Play Store or use the built-in file manager to install. APK-Popular applications such as Lime HD TV, Peers.TV or OTT Club, which offers ready-made lists of channels, you only need a provider account or subscription, and the advantage of Internet TV is that it does not depend on the geographical location and the quality of the antenna. HD or 4K A stable Internet connection at least a speed 15-20 Mbit/s. 💡Use of the IPTV-Apps – the best alternative for residents of homes with complex air coverage or owners of TVs without built-in tuner DVB-T2. Resetting tuner settings and software updates Sometimes software failures of the Android operating system TV can block the correct operation of the signal reception module. If standard methods don't work, it's recommended to check for system updates. Manufacturers regularly release patches that improve compatibility with various antenna equipment. Go to Settings → About TV → Update. If a new version is available, install it. After the reboot, try to start the channel search again. In extreme cases, you can completely reset the TV settings to factory ones, but this will remove all installed applications and accounts. To perform a full reset, select Settings → About TV → Reset. Confirm the action and wait for the reboot. After the initial reboot, try to reset the channels. In the last case, you can perform a full resetting of the antenna procedure, you can not follow the contact in the above the physical menu. Make sure you select Etheric antenna (DVB-T2) mode, not Cable or Satellite. Also check if your antenna is powered (if active) - some Xiaomi models require the power option to be enabled in the tuner settings. Can you watch digital TV without an antenna? Yes, if you have access to the Internet. You can use online cinema apps, IPTV services or stream an image from your smartphone to your TV through the Chromecast-in function. The built-in DVB-T2 antenna tuner requires you to manually check the channel for your network? In most cases, no. Xiaomi TVs are equipped with a built-in DVB-T2 tuner. A separate set-top box (receiver) will only be needed if the built-in tuner is faulty or if you want to connect satellite TV that requires a special module.