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The easiest digital TV antenna

Analog television is a thing of the past, therefore, to maintain the ability to watch TV shows, a transition to DVB-T2 broadcasting is required. For this, it is necessary to use a specialized antenna, which can be made personally from the available materials, which I will do.

Materials and Tools Required


To make the antenna you will need:
  • a piece of television coaxial cable 20 cm;
  • HF connector (transition from F type connector to a TV plug);
  • F type connector.

You will also need the simplest set of tools that everyone can find. It is enough to have a tape measure or ruler, a sharp knife, wire cutters or pliers.

Determining the frequency of broadcasting in the city


The easiest digital TV antenna

Before you begin assembling the antenna, you must first find out the frequency of digital broadcasting in the region. Since I live in Russia, for this I go to the official website of the digital television of the Russian Federation. I’m looking for a tab on it"And choose your locality. On the map that opens, you need to find the nearest repeater and click on it with the cursor.
In the window that appears, click on the link "more". As a result, detailed information on the digital television settings of this repeater will open. In my case, two packages of RTRS-1 and RTRS-2 television channels are presented. I am interested in the direct frequency in megahertz. Available packages are broadcast at 754 and 778 MHz.
Based on these data, it is necessary to calculate the actual length of the working part of the antenna in centimeters. A simple formula is used for this. It is necessary to divide 7500 into each frequency. In my case, 7500/754 = 9.94 cm and 7500/778 = 9.6 cm.
Thus, in order for the antenna to accept both frequencies normally, it will be enough to make it 10 cm long. Naturally, residents of other cities will get a different result, but regardless of this, the direct manufacturing process is completely identical.

Direct manufacture


To make an antenna you don’t have to buy anything, since in most cases all the necessary materials are already available, as they were used to ensure the operation of analog television. First you need to take a piece of coaxial cable of about 20 cm. One of its ends is stripped to secure the F connector. To do this, remove the top insulation about 3 cm from the edge to open the cable screen. The bare winding together with the protruding foil is bent to the opposite end from the working edge.
After this, 3 mm back from the obtained edge of the cut of the upper insulation, you need to cut the cable to the central copper core. After that, the F type connector is screwed. The copper core of the wire protruding in its center is cut so that its tail extends beyond the connector by no more than 1 cm.
Now, the RF connector is screwed onto the F connector, which is subsequently connected to the TV plug.
The easiest digital TV antenna

Having retreated about 3-4 cm from the edge F of the connector, already in the opposite direction, you need to put a mark on the coaxial cable. From it is measured as much as was calculated by the formula, and the wire is cut off. I cut through 10 cm.
The easiest digital TV antenna

According to the previously set mark, it is necessary to cut through the upper insulation to the screen winding. It is removed, as a result of which the inner insulating layer opens.
The easiest digital TV antenna

The easiest digital TV antenna

The easiest digital TV antenna

The existing screen winding is removed because it is not needed, as it creates an obstacle to picking up the signal. The antenna itself is bent at 90 degrees in the place of the step between single and double insulation.
The easiest digital TV antenna

Now the antenna can be screwed directly into the connector on the TV or set-top box, if DVB-T2 is not supported by it.
The easiest digital TV antenna

With sufficient proximity to the repeater, the signal is captured clearly enough to watch TV without interference. If the picture ripples and slows down, then the antenna will have to be put out on the street. For this, a coaxial cable of the required length is used, well, a couple of additional adapters.

Channel setup and search


TV setup is very simple. Everything happens automatically. We choose the search for just digital or digital and analogue channels.
The easiest digital TV antenna

We start the search and wait for a while.
The easiest digital TV antenna

About a dozen channels were caught.
The easiest digital TV antenna

The feasibility of using an antenna


Making an antenna will only help if the TV supports the DVB-T2 digital television reception function. Outdated models are deprived of such an opportunity, therefore, they require the purchase of a specialized set-top box, in the kit for which the antenna usually already goes.
It is also important to check the presence of a nearby repeater before manufacturing. The effective range of such an antenna cannot exceed more than 6-15 km. This is only subject to good visibility of the tower without waves of high-rise buildings and other obstacles located on the trajectory of movement. If the distance is greater, then the use of an additional amplifier will be required, which ultimately also depends on the purchase of a specialized TV set-top box.

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Comments (16)
  1. Dmitry Spitsyn
    #1 Dmitry Spitsyn Visitors November 16, 2018 15:27
    7
    A bend is needed if you insert it directly into the TV without a cable.
  2. Guest Alex
    #2 Guest Alex Guests November 16, 2018 19:52
    0
    bends, not relevant, 2 lattices from an old refrigerator, 2 pieces of any metal mesh, cable screen on one mesh, central core on another mesh, it catches just super, ...
  3. Ivan
    #3 Ivan Guests November 16, 2018 23:21
    5
    if in TV there is a DIGITAL function then it will show, and if not, at least get caught :(
  4. Guest Alex
    #4 Guest Alex Guests November 17, 2018 00:14
    1
    It will be better to catch the Kharchenko biquadrat, and even better if it is supplemented with two more squares, for 21 and 23 ranges - 15.5 cm side.
  5. ildar
    #5 ildar Guests November 17, 2018 2:05 p.m.
    0
    it doesn’t depend on the cable length. If you plug it in, it will show. It depends on the TV.
  6. Guest Vladimir
    #6 Guest Vladimir Guests November 17, 2018 2:44 p.m.
    55
    Why does everyone fence the finished garden. No "specialized" antenna is needed to receive a digit. The digital signal is broadcast on the decimeter range, which is accepted by all the old all-wave antennas. And do not powder the brains of ordinary people. The only thing you need for old televisions is a digital set-top box, and new ones perfectly accept the number on the old antenna. And then write nonsense with a smart look, it's really disgusting.
    1. Guest alexander
      #7 Guest alexander Guests 17 november 2018 20:01
      3
      I wrote everything correctly ..
    2. vitos
      #8 vitos Guests December 14, 2018 13:28
      1
      One hundred pounds. I have a simple 20cm telescope that catches approx.to the station 40km.
  7. myhea
    #9 myhea Guests November 17, 2018 17:48
    3
    In Moscow, it catches 30 channels from a TV cable (without an antenna). Rostelecom is resting.
  8. Alex s
    #10 Alex s Guests November 18, 2018 13:16
    5
    It is NOT clear why connector F is needed?
    1. Nick
      #11 Nick Guests November 19, 2018 10:12
      0
      To connect to the cable through the F-barrel
  9. Guest Prokhor
    #12 Guest Prokhor Guests November 19, 2018 11:22
    1
    This is not the easiest antenna. I just have a piece of wire (not antenna, not shielded) tied to the window handle. Naturally, the other end is inserted into the middle contact of the plug. True, the window has a wonderful view of the Ostankino tower and the distance is only 5-7 kilometers.
    It also works with analog itself.
  10. Edward
    #13 Edward Guests November 19, 2018 16:22
    2
    It’s easier without any connectors - just strip the cable to a certain length (in this case - 10 cm).
  11. Sergey Nikolaevich
    #14 Sergey Nikolaevich Guests November 22, 2018 19:22
    4
    It’s even easier to take two beer cans, empty of course, to attach them with a scotch tape to a suitable piece of wood, or better to a school ruler at a distance of 7 cm, fasten a cable to the keys to open the cans, put on the plug and plug it into the TV ... I have 60 km to the repeater. works without problems ...
  12. Michael.
    #15 Michael. Guests November 24, 2018 07:37
    4
    If the TV received an analog signal, then no troubles with the antenna are needed. It will simply receive a digital signal, since it is the same radio wave. Forget about ranges and frequencies. Moreover. The digit can be received on a much lower quality antenna than the old analog signal. For example, my TV worked on an outdoor antenna, and it perfectly catches a number on an indoor antenna. Naturally, it depends on the reception conditions — the distance from the transmitting station, the presence or absence of any objects on the path that attenuate this signal. In general, forget about this article and do not break your brain in vain, because there are simply no problems with the number.
  13. Xavi
    #16 Xavi Guests January 4, 2019 2:25 p.m.
    0
    We also have an old antenna made of metal mustache that works 100%. Somewhere even the room pulls. Although we live outside the city ... All 20 channels.

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