Connect the HDTV dual tuner correctly

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In order to make the most of the television offerings, many participants would like to be able to record one program while another is being viewed. An HDTV dual tuner is required for this. However, its operation places certain demands on the signal source.

Don't forget the twin LNB.
Don't forget the twin LNB.

What you need:

  • circuit diagram
  • Splinters

HDTV can be received via multiple systems

Satellite technology probably plays the dominant role in the spread of digital television reception. Therefore, in these instructions, the connection of an HDTV dual tuner for DVB-S resp. DVB-S2 are treated.

  • It does not matter whether the dual or twin tuner is built into the television set, or whether it stands next to it as a separate device. Its purpose is to receive 2 different television programs at the same time. The one on the screen viewed while the other is being recorded from a storage medium.
  • To use the full bandwidth offered by an HDTV dual tuner, two separate coaxial cables are required from the dish to the receiver. This ensures that stations that transmit on different levels and / or different polarizations can be received next to each other.

This is how a dual tuner attaches to the cables

  1. Connect the two existing antenna cables to the two input sockets of the twin tuner. They are marked with the satellite symbol and require an F-connector with a thread at the end of the cable. The choice between connections "1" and "2" is irrelevant.
  2. In most cases the television is connected to an HDMIcable connected to the receiver. The corresponding socket is labeled "TV out" or similar. Connect the hard disk recorder, if present, or other media and components according to the instructions in the operating instructions.
    3. Connecting a twin satellite receiver - you have to pay attention to that

    A so-called twin satellite receiver enables you to connect two different ...

  3. In many cases, a dual tuner only needs to be operated on one antenna cable. In this case, you can only receive two programs at the same time with restrictions. The transmitters must be equally polarized (horizontally or vertically) and transmit in the same frequency range. This drastically reduces the number of possible programs.
  4. To use this method, connect a splitter with two outputs in front of the dual tuner and thus supply the two antenna sockets with a signal. But you can also switch special additional devices between the satellite dish and the dual tuner to avoid this shortcoming, for example. T. balance. One of them is the Johansson stacker, but it is not available for free.

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