Why Does Digital TV Keep Losing Signal?

It’s incredibly frustrating trying to watch a TV show that constantly loses signal! After troubleshooting my TV signal loss problems, I found solutions that might help you too.

If you’re wondering why your digital TV is getting less and less signal, follow the tips in this article and you should get a clear TV signal back. Let’s review the troubleshooting steps to reduce the problems.

Why does digital TV lose its signal?

Digital cable TV often loses signal when the HDMI cable, the coaxial F-connector or the cable from your building is defective. Terrestrial television can lose its signal for several reasons. B. due to a defective antenna, an antenna outside the range of transmission masts or poor living conditions. In this article, I’ll cover both cable and terrestrial television.

Cable TV No signal:

You might think that cable television, where every connection is physically connected, shouldn’t lose signal, but it’s actually quite common, even if you’re using a set-top box.

Some issues can be resolved on your end, while others must be resolved by the cable company. Before you call the company, you can try a few things:

Check the HDMIcable .

You can make a mistake. No signal on your TV because of the HDMI cable. If the set-top box is turned on and shows no error, the problem is probably related to the HDMI cable. HDMI cables can last a long time, but damage such as animal bites or twisting can render the cable unusable.

Do not bend the HDMI connector as this may damage the connection to the TV, set-top box or HDMI cable. What you can do is adjust the thread a bit, straighten it out and see if it works. Sometimes the signal comes if you move the wire a little. Finally, try another HDMI cable.

If the new cable works, the problem is probably with your original HDMI cable. You should also check the video source. Make sure the TV is set to the correct HDMI source.

Switching the box and the TV on and off

The classic solution to all technical hardware problems; turn off and on again. Surprisingly, it can solve many problems. One reason could be that there was a problem when you started the set-top box or TV software and they can’t communicate with each other. A simple reboot can usually solve these problems.

Reset of upper part

The steps vary slightly depending on the top case being used, but most can be reset by unplugging for 30 seconds and then plugging it back in. This allows the device to be reset to its default settings, which should protect it from software problems.

If you are still having problems, your box may be faulty, in which case you should have it replaced by the cable operator. In most cases, you can get a free replacement, or even buy your own. If you buy your own box, you will need to give your cable operator a new MAC ID number for the box so they can register it.

Damaged or defective amplifier

Are some channels pixelated and others clear? The cause may be a defective or damaged amplifier. The amplifier will attempt to cancel the frequencies on the low power channels.

Adding or replacing a TV amplifier is relatively easy and there are many TV amplifiers available online. It’s worth a try. Buying an amplifier usually erases weak signals so that all channels are clear.

Tighten or replace connections F.

If you have a decoder that connects via coaxial cable, you can just tighten the connection, it should be firm and tight. Your home may also have coaxial F connectors that need to be replaced.

I suggest you call the cable company to replace it. Especially in old buildings, connectors can rust and fail over time, although they are generally very durable. It’s a good idea to replace them. There are probably several in your building that a technician will check and replace. Sometimes the coaxial cable also needs to be replaced, but this rarely happens.

Problems on the enterprise side

If you have exhausted all possible solutions on your end, the last resort is to call your cable company and ask them to send a technician. It’s frustrating when problems are out of our control, but the technician can probably isolate them. Downtime can also be caused by scheduled maintenance on the network.

Terrestrial television reception No signal

Signal outages are much more common in terrestrial television because there are many potential problems. In general, cable broadcast signals are much less reliable than cable connections. However, there are a few things you can try to make the signal disappear on your site.


Satellite television is often affected by the weather, on days when there are many clouds, the signal is often poor. This is due to cloud cover, rain and other weather conditions that may interfere with the transmitter signal.

For example, if the television reception is poor, you will have to wait until the weather clears. Another problem could be something blocking the signal. B. Tree stumps or other structures.

Problems with TV signaltoday:

Is your television not getting a signal today? You can try checking for network outages and whether others are reporting problems, reconnecting devices, selecting the correct source on the TV, and reconfiguring the antenna.

Unaligned satellite or antenna

Satellites are usually installed by engineers and generally stay in place, but certain conditions, such as B. strong winds, can easily cause them to deviate from their trajectory. You can call the company and send a technician to install the satellite.

Poor free air reception on some channels

If Freeview reception is poor on some channels, you can try improving your antennas or buying a signal amplifier. A more sensitive antenna can pick up weaker signals while an amplifier tries to pick them up, the end result should be recognizable.

What you can do is buy a new antenna or align the one you already have, place it in the house by the window and see if the signal gets clearer. Sometimes you just need to move the antenna or satellite a little to receive a stronger signal.

Another option is to reconfigure the device. This allows for rescanning of channels, which can sometimes solve problems with some channels. You can also use the Troubleshooting Guide on the BBC website to find the location of a transmitter to which your antenna or satellite needs to be pointed.


  • Radio waves (4G, 5G, etc.) Interference
  • Electromagnetic interference
  • Static electricity
  • Overloaded TV station
  • And much more.

Bottom row:

It can be very frustrating when your television constantly loses signal. The good news is that these problems are usually temporary and caused by something unpredictable, like weather and other conditions. Some problems can be solved by yourself, sometimes a simple reboot will solve all the problems, in other cases you have to ask for help. In any case, I would start with the simplest tasks and then move on.

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