Digital TV standard DVB-T2 It has long been the main source of free TV channels in Russia, but many users still mistakenly believe that to view it necessarily need a separate console. TV 4S/4A/5X/6X, Redmi Smart TV and others) equipped with built-in tuners DVB-T2, allowance 20 Free Digital Channels in Full HD without additional equipment - it is enough to connect the antenna correctly and perform the setting.
In this article, we will examine the whole process from A to Z: from choosing an antenna to solving typical channel search problems. You will learn how to distinguish a room antenna from a street antenna in technical terms, why a TV can not “see” multiplexes, and what to do if not all channels are found after auto-search. TV Android TV (firmware included MIUI TV 3.0+), and for hybrid devices with DVB-T2/C/S2 tuners.
1. Check the compatibility of your Xiaomi TV with DVB-T2
Before you buy an antenna or try to set up channels, make sure your model supports digital broadcasting.Most Xiaomi TV, Released after 2019, equipped with a built-in tuner, but there are nuances:
- ✅ Supporting. DVB-T2 No prefixes: all models of the Mi series TV 4S (2020+), Mi TV 5X/6X, Redmi Smart TV X, Xiaomi TV A2/A Pro, as well as hybrid versions with the marking DVB-T2/C boxed.
- ❌ Requires a prefix: old models Mi TV 3S/4A (2018 year and earlier) and devices marked No Tuner in specifications (e.g. some variants for the Chinese market).
- ⚠️ Check through the menu: go to Settings → Channels → If there's an antenna on the list (DVB-T) Digital TV, your TV is compatible.
If you are not sure about the model, look for its name on the sticker on the back of the TV (format: LXXM6-XX or LXXM7-XX) And check the specifications on the official Xiaomi website or in the documents. TV 4S 55" (model L55M6-6ARU) supportive DVB-T2, Mi TV 4A 32" (model L32M5-5AIN) — no.
2.Selecting an antenna for digital TV: what really matters
The quality of digital channels is 80% dependent on the antenna, and many users make the mistake of buying the first digital antenna they get from Aliexpress, without considering the key parameters:
| Type of antenna | Range (MHz) | Reinforcement (dB) | Suitable for | Average price |
|---|---|---|---|---|
| Passive room room | 470–862 | 0–5 | Cities (signal) >70%) | 300–800 ₽ |
| Room active | 470–862 | 10–20 | Suburbs (signal 50–70%) | 800–2000 ₽ |
| Street directional | 470–862 | 25–35 | Sela (signal) <50%) | 1500–5000 ₽ |
| Street omnidirectional | 470–862 | 15–25 | Dachi (unstable signal) | 2000–4000 ₽ |
Critical parameters in the selection:
- 📡 Range: antenna should support 470-862 MHz (decimeter waves, DMV). Antennae for FM-radio or meter waves will not work.
- 📶 Strengthening: 5-10 dB for a city, a country house requires at least 20 dB. Too powerful antenna in a city can cause signal overload!
- 🔌 Power: Active antennas require network connection 5V/12V. Make sure there is a power supply with an F connector in the kit.
- 🛡️ Interference protection: Look for filtered models 4G/LTE, If there are cell towers nearby.
Popular Verified Models for Xiaomi TV:
- Rolsen RDA-03 — budget room antenna with amplification of 5 dBi (suitable for Moscow, St. Petersburg).
- Locus LA-20DV — 20 dBi amplification active antenna and filter 4G.
- Remo BAS-5113 — street-directional antenna for weak signal.
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Before buying an antenna, check the signal level in your region on the site map.ptr.pf. If the level is green (70%+), If you have a yellow/red antenna, you need a street antenna.
3. Connecting antenna to Xiaomi TV: step-by-step instruction
When you select an antenna, you have to connect it to the TV correctly, and many people make mistakes, like using the wrong cable or screwing the connectors loosely, which causes you to lose your signal.
☑️ What you need to connect
Step-by-step process:
- Turn off the TV (remove the plug from the socket) and prevent static electricity from damaging the tuner.
- Connect the antenna: If the antenna is room - insert the plug into the connector ANT IN If the antenna is outdoor, extend the cable through the hole in the wall (avoid sharp bends!) and connect it to the wall. ANT IN.
Connect the power to the active antenna
Don't connect the antenna to USB 3.0 (blue connector) – this can cause interference!
Turn on the TV.
Important nuances:
- 🔧 Use only coaxial cable. RG-6 75 ohms wave resistance cable RG-59 (for analogue TVs, not suitable!
- 📏 Maximum cable length without amplifier is 15 meters. If you need more, use an active signal amplifier.
- ⚡ Avoid connecting the antenna through splitters (branches) – they weaken the signal by 3-7 dB.
What to do if the connector ANT-T-T-T-T-T-T-T-T-T-T-T-T-T-T-T-T-T-T-T-T-T-T-T-T IN absent?
4. Digital Channel Configuration: Manual and Automatic Search
Now, to the most important thing, channel search. TV There are two ways: automatic and manual. Autosearch is easier, but manual is more control, especially if not all multiplexes are broadcasting in your area.
Automatic search (recommended for most users):
- Open the menu: Settings → Channels → Channel setting → Digital channels (DVB-T).
- Select Automatic Search.
- Please indicate the country: Russia (or your region, if available in the list).
- Click Scan and wait until it is completed (it will take 3-10 minutes).
Manual search (if the search engine does not find all channels):
- Settings menu → Channels select Manual Search.
- Specify multiplex frequencies for your region (see table below).
- For each multiplex, click Search and wait for the result.
- Repeat for all available frequencies.
Frequencies of multiplexes in Russia (2026):
| Multiplex | Channels | Frequency (MHz) | Coverage |
|---|---|---|---|
| RTRS-1 (MUX-1) | One, Russia.-1, Match TV, NTV, 5 channel. | 546 or 602 | 98% of the territory of the Russian Federation |
| RTRS-2 (MUX-2) | REN TV, STS, TNT, Muz-TV, TVC, etc. | 498 or 690 | 95% of the territory of the Russian Federation |
| RTRS-3 (MUX-3) | Channel Five, Carousel, OTR, TV3, etc. | 586 or 778 | 80% of the territory of the Russian Federation |
You can check the frequencies for your city on the website of CETV or RTRS. MUX-1 It broadcasts at 602 MHz and in St. Petersburg at 546 MHz.
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If the TV doesn't find channels on automatic search, always try manual frequency input. Often the problem lies in a weak signal on one of the frequencies, and the TV "misses" it in auto mode.
Typical problems and their solutions
Even if you set it up properly, users have problems: the channels are not there, the image is broken into squares, or the sound is lost, and we'll look at the most common cases and how to fix them.
⚠️ Note: If not all channels are found after searching (for example, only 10 out of 20), the problem is likely to be a weak signal on one of the multiplexes. → Channels → Signal status: If it's below 50 percent, you need a more powerful antenna or amplifier.
Problem 1: The TV doesn't find a single channel.
- 🔌 Check the connection of the antenna: the connector should be screwed to the end, without backlash.
- 📶 Make sure the antenna supports DVB-T2 (The box must be marked appropriately).
- 🔄 Try resetting channel settings: Settings → Channels → Reset.
- 📡 If an active antenna is used, check if the power supply is connected.
Problem 2: Channels are in place, but the image freezes or crumbles
- 📶 Check the signal level in the TV menu. If it fluctuates (for example, 40-60%), you need a high-amplification antenna.
- 🔧 Replace the cable: Old or damaged cable may interfere with the cable.
- 🛡️ If there are towers nearby 4G, Use an antenna with a filter LTE.
- 🔄 Reboot TV: Sometimes crashes are due to tuner software errors.
Problem 3: There is no sound on some channels
- 🔊 Check the sound settings: Settings → Sound. → The sound format should be Auto or Dolby Digital.
- 📻 Maybe the problem is on the broadcaster's side. Try switching to another channel and coming back.
- 🔄 Update the TV firmware: go to Settings → On TV. → Updating the system.
Problem 4: Canals are periodically lost
- 🌦️ Weather conditions (rain, snow) can affect the signal.
- 📡 If the antenna is room, try moving it closer to the window or window sill.
- 🔧 Check the cable for damage (bending, incisions).
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If the TV finds channels, but they periodically "disappear", try to manually save the found channels in the memory of the tuner. → Channels → Channel management → Save.
6.Signal optimization: how to improve reception without buying a new antenna
You don't always have to buy an expensive antenna to improve the signal, and simple steps often help.
- 📍 Position antenna: Place the room antenna on the windowsill or next to the window facing the TV tower).
- 📶 Signal amplifiers: If the cable is longer than 10 meters, use a passive amplifier (e.g., a power amplifier, SWA-100). An active amplifier is suitable for a weak signal (for example, LSA-01 nourished 12V).
- 🛠️ Homemade solutions: If the signal is weak, you can make a foil reflector by placing it behind the antenna at a distance of 10-15 cm. Use ferrite rings on the cable to reduce interference from other devices.
How to check the signal level on Xiaomi TV:
- Open the Settings menu → Channels → Signal status.
- Now, notice two things: Signal strength -- it should be at least 60 percent. Signal quality should be at least 70 percent.
If both parameters are below normal, a more powerful antenna or amplifier is needed.
If you live in an unstable reception area, consider a hybrid antenna (e.g. Locus). LA-30DV), catcher DVB-T2, so DVB-C (cable TV – this will give a backup signal source.
7. firmware update: why it's important for stable operation DVB-T2
Many users forget that the TV firmware directly affects the work of the tuner. manufacturers regularly release updates that fix channel search errors, add support for new compression standards (for example, for new compression standards, HEVC/H.265) and improve the stability of reception.
How to update the firmware on Xiaomi TV:
- Connect your TV to the Internet (via Wi-Fi or cable).
- Go to Settings → About TV → System Update.
- Click Check for updates.
- If a new version is available, click Download and Install.
- Wait until the TV is finished (the TV will restart automatically).
What the update does:
- 🆕 Correction of channel search bugs (for example, in firmware) MIUI TV 3.2.1 was a manual frequency input bug).
- 📶 Improvement of weak signal processing algorithms.
- 🔒 Adding support for new encryption standards (relevant for paid channels).
⚠️ Note: If after the update the TV stopped finding channels, reset the tuner settings: → Channels → Reset → Reset the settings DVB-T. This will bring back factory search parameters.
If the automatic update doesn’t work (for example, due to slow internet), you can update the firmware manually:
- Download the latest firmware for your model from the Xiaomi Support website.
- Copy the file (.zip format) to the flash drive formatted into FAT32.
- Put the flash drive in. USB-television-port.
- Go to Settings → About TV → System Update → Update via USB.