The DVB-T tuner is a device that allows you to receive and decode digital television signals. The signals are transmitted using the DVB-T standard, which is an international standard for digital terrestrial television. The DVB-T tuner can be built into a TV set, or it can be a standalone device that you connect to your TV.
The DVB-T tuner allows you to receive digital TV signals from a terrestrial (ground-based) transmitter. The advantage of DVB-T over other digital TV standards is that it uses a single frequency network (SFN), which means that the same frequency can be used for multiple transmitters. This allows for a more efficient use of the spectrum and reduces the cost of setting up a DVB-T network.
The DVB-T tuner can also be used to receive signals from a satellite. In this case, the tuner needs to be connected to a satellite dish. The dish must be pointing at the right satellite, and the tuner must be tuned to the right frequency. The advantage of using a satellite is that it can provide a wider coverage area than a terrestrial transmitter.
There are two types of DVB-T tuners: internal and external. Internal tuners are built into TV sets, while external tuners are standalone devices that you connect to your TV. External tuners usually have a better performance than internal tuners, but they are more expensive.
If you want to receive digital TV signals, you need a DVB-T tuner. You can buy a DVB-T tuner as a standalone device or as part of a TV set. External tuners usually have a better performance than internal tuners, but they are more expensive.