In the country areas, the television signal is rarely taken without amplification: too far from the repeater, the relief is usually heterogeneous, and the trees interfere. For the normal quality of "pictures", you need antennas .To, who at least a little to handle a soldering iron, can make an antenna for giving with your own hands. Aesthetics outside the city is not like that of great importance, the main - quality of reception, simple design, low cost and reliability. You can experiment and do yourself.
Simple television antenna
If the repeater is within 30 km from your cottage, you can make the most simple on the design part. These are two identical tubes interconnected by cable. The cable output is fed to the appropriate television input.
The design of the antenna for the TV in the country: do it yourself very simple (to increase the size of the picture, click on it with left mouse button)
What is needed for the manufacture of this TV antenna
First of all, you need to know at what frequency the nearest television is broadcast. The frequency depends the length of the "Usov". The broadcast band is in the range of 50-230 MHz. It is divided into 12 channels. For each needed its length tubes. The list of channels of essential television, their frequencies and the parameters of the television antenna for self-making will lead in the table.
| Canal number | Channel Frequency | Length of the vibrator - from one to the other end of the tubes, see | Length of cables for a matching device, L1 / L2 cm |
|---|---|---|---|
| one | 50 MHz | 271-276 cm | 286 cm / 95 cm |
| 2. | 59.25 MHz | 229-234 cm | 242 cm / 80 cm |
| 3. | 77.25 MHz | 177-179 cm | 187 cm / 62 cm |
| four | 85.25 MHz | 162-163 cm | 170 cm / 57 cm |
| five | 93.25 MHz | 147-150 cm | 166 cm / 52 cm |
| 6. | 175,25 MHz | 85 cm | 84 cm / 28 cm |
| 7. | 183.25 MHz | 80 cm | 80 cm / 27 cm |
| eight | 191.25 MHz | 77 cm | 77 cm / 26 cm |
| nine | 199.25 MHz | 75 cm | 74 cm / 25 cm |
| 10 | 207.25 MHz | 71 cm | 71 cm / 24 cm |
| eleven | 215.25 MHz | 69 cm | 68 cm / 23 cm |
| 12 | 223.25 MHz | 66 cm | 66 cm / 22 cm |
So, in order to make an antenna for the TV with your own hands, you need the following materials:
- The metal pipe with a length of 6-7 cm is shorter than specified in the table. Material - Any Metal: Brass, Steel, Duralumin, etc. Diameter - from 8 mm to 24 mm (more often put 16 mm). The main condition: both "Usa" should be the same: from one material, one length, from the pipe of one diameter with the same wall thickness.
- Television cable with a resistance of 75 ohms. Its length is determined at the place: from the antenna to the TV, plus a meter of one and a half to the sagging and half the meter for the coordination loop.
- A piece of thick textolite or getynaks (a thickness of at least 4 mm),
- Several clamps or metal strips for fastening pipes on the holder.
- Rod for antenna (metal pipe or corner, with not very high height - wooden bar, etc.).
Simple antenna for the cottage: Even a schoolboy can make with their own hands
It would be nice to have a soldering iron, a flux for soldering copper and solder: All connections of central conductors are preferably disappearing: the image quality will be better and the antenna will work longer. Places of pieces then need to be protected from oxidation: it is best to pour the silicone layer, it is possible - epoxy resin, etc. As a last resort - take it with a tape, but it is very unreliable.
This homemade antenna for the TV, even at home, will make a child. You need to cut off the tube of that length, which corresponds to the frequency of broadcasting the nearby repeater, then cut it exactly in half.
Order assembly
The resulting tubes are discussed on one side. These ends are attached to the holder - a piece of hetinaks or textolite with a thickness of 4-6 mm (see the picture). The tubes are located at a distance of 6-7 cm from each other, their long-distance ends must be on the distance specified with the table. They are fixed to the holder, they should be kept firmly.The installed vibrator is fixed on the mast. Now you need to connect two "usa" through the matching device. This is a cable loop with a resistance of 75 ohms (type RK-1, 3, 4). Its parameters are indicated in the extreme right column of the table, and how it is done - in the right side of the photo.
The average cable veins are screwed (soldered) to the discharged ends of the tubes, their braid is connected by a piece of the same conductor. Get the wire simply: cut off a piece of slope slightly more than the desired size and free from all the shells. Ends Clean and fasten to cable wiring (better supay).
Then the central conductors are connected from two pieces of matching the loop and the cable that goes to the TV. Their braid is also connected by a copper wire.
Last Action: The loop in the middle is fixed to the rod, it is also screwed down to the cable going down. The bar is raised to the desired height and there "set up". For configuration, two people need: one turns the antenna, the second is watching TV and evaluates the picture quality. Having determined where the signal is best received, the antenna made by its own hands is fixed in this position. To do not suffer for a long time with "setup", see where the receivers of neighbors (essential antennas) are directed. The simplest antenna for giving with his own hands is made. Install and "catch" the direction by turning it along its axis.
About how to cut a coaxial cable Watch the video.
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Pipe loop
This antenna for giving with your own hands is slightly harder in the manufacture: you need pipe bender, but the radius of reception is more - up to 40 km. The source materials are practically the same: metal tube, cable and rod.
The radius of the bend pipe is notable. It is necessary that the pipe has the desired length, and the distance between the ends was 65-70 mm. Both "wings" should be the same long, and the ends should be symmetrical about the center.
Homemade TV antenna: a television receiver with a radius of receiving up to 40 km from a piece of pipe and cable (to increase image sizes, click on the left key of the mouse)
The length of the pipe and cable is indicated in the table. Learn, at what frequency broadcasts the relay closest to you, choose the appropriate string. Screw the pipe of the desired size (diameter is desirable 12-18 mm, the parameters of the matching loop are given).
| Canal number | Channel Frequency | Length of the vibrator - from one to the other end, see | Length of the cable for a matching device, see |
|---|---|---|---|
| one | 50 MHz | 276 cm | 190 cm |
| 2. | 59.25 MHz | 234 cm | 160 cm |
| 3. | 77.25 MHz | 178 cm | 125 cm |
| four | 85.25 MHz | 163 cm | 113 cm |
| five | 93.25 MHz | 151 cm | 104 cm |
| 6. | 175,25 MHz | 81 cm | 56 cm |
| 7. | 183.25 MHz | 77 cm | 53 cm |
| eight | 191.25 MHz | 74 cm | 51 cm |
| nine | 199.25 MHz | 71 cm | 49 cm |
| 10 | 207.25 MHz | 69 cm | 47 cm |
| eleven | 215.25 MHz | 66 cm | 45 cm |
| 12 | 223.25 MHz | 66 cm | 44 cm |
Assembly
The tube of the required length bend, making it absolutely symmetrical relative to the center. One edge is flattened and brewed / seal. Fill the sands, and close up the second side. If there is no welding, you can drown the ends, just put the plugs on good glue or silicone.The resulting vibrator is fixed on the mast (rod). It is screwed to the ends of the pipe, and then the central conductors of the coordination loop and the cable, which goes to the TV is puzzled. The next step is to connect a piece of copper wire without insulation of the braid cables. The assembly is completed - you can start "configuration".
If you want to do it yourself, read how to choose an antenna for giving here.
Basket Antenna
Despite the fact that it looks out seriously, the image becomes much better. Verified repeatedly. Try!
Outdoor antenna from beer cans
Need:
- Two tight cans with a capacity of 0.5 liters,
- a piece of wood or plastic about 0.5 meters long,
- a piece of television wire RG-58,
- soldering iron
- Aluminum flux (if aluminum cans),
- solder.
How to make an antenna from cans
We collect like this:
- In the bottom of the banks strictly centered hole (5-6 mm in diameter).
- Through this hole, stretch the cable, output it through the hole in the lid.
- This bank is fixing the left on the holder so that the cable is sent to the middle.
- I pull out the cable from the bank approximately 5-6 cm, remove the insulation about 3 cm, we disassemble the braid.
- Cutting the braid, its length should be about 1.5 cm.
- It is distributed over the surface of the can and solder.
- The central conductor sticking on 3 cm must be soldered to the bottom of the second bank.
- The distance between two banks needs to be made as small as possible and fix in any way. One of the options is sticky tape or tape.
- All, homemade antenna DMV is ready.
The second end of the cable is finished with a suitable plug, turn on the TV jack. This design, by the way, can be used to receive digital television. Fir your TV supports this signal format (DVB T2) or there is a special console to the old TV, you can catch a signal from the nearest repeater. You only need to know where it is located and there to send your television antenna, made with your hands from tin cans.
Simple homemade antennas can be made from tin cans (from under beer or drinks). Despite the frivolousness of the "components" it works very well, and it is very simply made
The same design can be adapted to receive a meter channel channels. Instead of 0.5 liter cans, put on 1 liter. Will take MV range.
Another option: if there is no soldering iron, or you do not know how to solder, you can make it easier. Two banks are tied at a distance of several centimeters to the holder. The end of the cable is cleaned by 4-5 centimeters (carefully remove the insulation). The braid is separated, you are tied to the harness, you make a ring on it, in which the self-sustain is. From the central conductor, make the second ring and through it the second self-tapping screw. Now at the bottom of one cans we clean the speck, to which the screws are screwed.
In fact, for better contact need a soldering: braid carriage is better to post and sob, like a place of contact with metal cans. But also on self-drawing, it turns out not bad, however, the contact periodically oxidizes and it needs to be cleaned. How will "snow" you will know why ...
Perhaps you are wondering how to make a brazier from a balloon or barrels, you can read about it here.
Antenna for digital TV do it yourself
Antenna design - frame. For this option of the receiving device you will need a crosstorn from wooden boards and a television cable. We also need a tape, several nails. Everything.We have already said that for receiving a digital signal, only a decimeter ether antenna is needed and the corresponding decoder. It can be built into televisions (new generation) or made in the form of a hotel device. If the signal reception function in the DVB T2 code on the TV is there, connect the antenna immediately to the TV. If there is no decoder in the TV, you will need to purchase a digital prefix and connect from the antenna to it, and it is to the telly.
How to decide on the channel and calculate the perimeter of the frame
In Russia, a program was adopted, on which the towers are constantly being built. By the end of 2019, the whole territory should be covered by repeaters. On the official website http: //xn--p1aadc.xn--p1ai/when/ Find your tower nearest to you. There is a broadcast frequency and channel number. The perimeter of the antenna frame is depends on the channel number.
This looks like a digital television number
For example, on the 37 channel broadcasting is carried out at a frequency of 602 MHz. Long wave is considered as follows: 300/602 = 50 cm. This will be the perimeter of the frame. Calculate similarly to another channel. Let it be 22 channels. Frequency 482 MHz, wavelength 300/482 = 62 cm.
Since this antenna consists of two frames, then the length of the conductor should be equal to the double wavelength, plus 5 cm on the connection:
- For 37 channels, we take 105 cm of copper wire (50 cm * 2 + 5 cm = 105 cm);
- For 22 channels need 129 cm (62 cm * 2 + 5 cm = 129 cm).
Maybe you are more interesting to work with a tree? How to make a birdhouse is written here and about the manufacture of a dog booth - in this article.
Assembly
The copper wire is best used from the cable, which will continue to receive a receiver. That is, take the cable and remove the shell and braid from it, freeing the central conductor of the desired length. Act carefully it can not be damaged.
Next, we build a support from the boards, as shown in the figure. To do this, it is necessary to determine the length of the side of the frame. Since it is turned the square, then the found perimeter is divided by 4:
- For 37 channels: 50 cm / 4 = 12.5 cm;
- For 22 channels: 62 cm / 4 = 15.5 cm.
The distance from one nail to another must match these parameters. The laying of copper wire begins to the right, from the middle, moving down and then on all points. Only in the place where the frames are suitable close one to the other, do not shorterate the conductors. They should be at some distance (2-4 cm).
Homemade Antenna for Digital Television
When the entire perimeter is laid, the braid from the cable long in several centimeters is twisted into the harness and solder (primed, if it does not work out) to the opposite edge of the frame. Further, the cable is laid as shown in the figure, priming it with a tape (can be more often, but the laying track cannot be changed). Then the cable goes to the decoder (separate or built-in). All antenna for giving with your own hands for accepting digital television is ready.
How to make an antenna for digital television with your own hands - another design is shown in the video.
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