DIY digital antenna for DVB-T2. Options for making a do-it-yourself TV antenna Do-it-yourself antenna for analogue television

So, imagine this situation: in the evening you decided to watch your favorite TV program, and suddenly the TV stopped showing - the cable TV was turned off. Or another case: you arrived at the dacha, already prepared for a vacation and discovered that you forgot to buy an antenna for the TV - not a single channel works. What to do in this case? The answer is simple - you need to make an antenna for the TV with your own hands from scrap materials, because most likely the cause of the breakdown is in this device. Next, we will look at the simplest manufacturing options, which will require a minimum of available parts and time.

Idea #1 – Use beer cans!

This version of a homemade television antenna is the simplest and fastest to manufacture. The maximum number of channels that you can catch is 7, but this figure can vary significantly depending on the region, terrain features and distance to the TV tower.

To make a TV antenna from beer cans, you will need the following materials:

• 2 small self-tapping screws, also called “bugs” (not needed if you have a soldering iron);
• 2 prepared beer cans (empty, washed and dried);
• from 3 to 5 meters of television cable (can be taken from a failed device);
• soldering iron and tin (for better fixation of contacts), availability is optional;
• screwdriver;
• wooden trempel (hanger);
• electrical tape or tape.

Finding all the materials in the house will not be a problem, so having prepared them, we immediately get down to business.

In order to make a homemade antenna from cans, you need to complete the following steps:

1. We prepare the cable. First, at a distance of 10 cm from the edge, you need to make a shallow circular cut and remove the top layer of insulation. Having opened access to the screen, we collapse it into one bundle. After this, we cut off the middle insulating layer, exposing the copper core of the cable by a few cm. At the second end of the wire there should be a regular antenna plug.
2. We prepare the jars. There will also be no difficulties with containers that will act as signal receivers. First you need to choose the optimal dimensions of beer cans. It is better to use liter ones, but if these are not available, containers with a volume of 0.5 and 0.75 liters will also cope well with the task.
3. Let's make contacts. At this stage, the twisted cable screen is fixed to one can, and the copper core itself is fixed to the other. Fixation is carried out by bedbugs using a screwdriver or a regular screwdriver. However, it is recommended to fasten the wire not with bugs, but with a soldering iron. The result should look like this:
   
4. We assemble a homemade antenna for a TV. The signal receiver is ready, now we make a supporting structure, which we use as a trempel or a regular hanger. Under no circumstances should it be made of wire or metal. Using electrical tape, we fix the containers to the trempel (as shown in the photo). We draw your attention to the fact that the banks must be strictly on the same straight line, otherwise the homemade product will not work and receive the signal stably.
   
   
5. Setting up an antenna for the TV. Now you need to experiment with the optimal distance between the cans, as well as where to hang the device and its position so that the homemade product catches many channels. We turn on the TV and determine exactly how the receivers should be located and where is the most suitable place for their work. This completes the technology for creating the device.
   
   

As you can see, the whole process is quite simple and does not represent anything complicated. The optimal distance is 75 mm between the ends of the cans, and the best installation location is near a window or on an external mast. In individual cases, the distance between the banks can be made larger or smaller.

Visual video instructions for creating a simple antenna from cans

Idea No. 2 – Use wire

Another equally good option that is advisable to use in the village is a homemade antenna made of copper wire with an amplifier.

All you need for production is:

• amplifier (suitable from an old device, for example, a non-working or disassembled antenna);
• two pieces of wire 180 cm each, it is advisable to choose thick and stiff so that the wind does not damage the device;
• a piece of metal (or wood) plate 15*15 cm;
• electric drill with a set of drills (a welding machine is desirable);
• small bolts;
• hammer;
• iron pipe;
• a television cable of suitable length with a plug (sold in radio stores, not expensive, can be removed from a non-working device).

So, to make your own TV antenna from copper wire, you need to complete the following steps:

Please note that in the photo examples, both the amplifier, the reflector, and the wire are covered with paint. Painting protects the structure from corrosion and other adverse factors, significantly extending the service life of a homemade TV antenna.

Idea No. 3 – Home HDTV device

If the first 2 options worked at a frequency of no more than 270 MHz, then the next manufacturing method will allow you to enjoy a higher quality picture, because The signal range can reach up to 490 MHz. The only part that is unlikely to be found among household items is a matching transformer from 300 to 75 Ohms. You will need to buy it in advance at a specialized store, but some plugs already contain this part.

Although, there are instructions on the Internet for making a homemade transformer, you can find and use it, this will significantly improve your skills in assembling homemade antennas.

Materials you will need:

1. Scotch
2. Cardboard
3. Stationery knife
4. Foil
5. Stapler
6. Scissors
7. Marker
8. Roulette
9. Glue (pencil or PVA)

Having prepared all this school kit, let's get down to business!

First you need to draw (or print on a computer) this diagram:

Now, according to the diagram, we cut out all the spare parts, including the necessary pieces of foil:

After this, you need to make a reflector with dimensions of 35 * 32.5 cm (height and width). Cover one side with foil.

In the middle we cut out two identical rectangles, which are necessary in order to completely assemble the signal catcher for a homemade antenna for a TV. The rectangle should be 3.5 cm long, its purpose is to maintain the distance between the reflector and the auxiliary parts.

We glue the parts onto the rectangle, and when the glue sets, we drill holes for the television cable.

We connect the transformer and cable using twists, tape or a soldering iron. A more powerful TV antenna is ready for use! It should also be noted that this homemade version is only suitable for indoor use, because The paper will quickly become wet from being used outdoors.

Assembling a digital antenna from a TV cable and a cardboard box

Another option for a powerful device made at home:

HDTV antenna made from improvised means

Idea No. 4 – Apartment option

There is another way to make a powerful antenna for a TV from improvised materials, which is suitable for both outdoor and indoor use.

To make the device you will need the following materials and tools:

• 4-meter copper wire, cross-section 4 mm2;
• board of arbitrary thickness, 55 cm long and 7 cm wide;
• wood screws;
• ruler or tape measure;
• a simple pencil;
• screwdriver;
• soldering iron;
• antenna plug.

So, first, we transfer the drawing to the workpiece and drill holes in the board:

Then we transfer the drawing data to the board and drill in the appropriate fastening points.

Next, the copper wire must be straightened and cut into 8 equal pieces of 37.5 cm each.

In the middle of each of the 37.5 cm sections, the insulation must be removed (as shown in the picture). To do this, use a sharp knife; a stationery knife is perfect.

We cut off 2 more pieces of wire 22 cm long and divide them into 3 equal parts, bend them slightly and, again, remove the insulation in these places.

We bend the prepared wire in exposed areas. We draw your attention to the fact that for those segments that are bent in half, the distance between the ends should be 7.5 cm (the optimal value for receiving a signal from a homemade television antenna).

Next, we attach the plug to the finished homemade product, and connect the television cable to it.

This concludes the manufacturing process. We select a suitable location and direction where signal reception is best, and install the device.

We tried to select the simplest instructions. We hope that now you know how to make a home TV antenna with your own hands! We draw your attention to the fact that today on the Internet you can find many other options in which inventors come up with more and more new manufacturing options, using, for example, copper and aluminum tubes, disks, electrodes... The choice of components for assembly is usually determined only by their availability, so don’t be afraid to experiment and come up with your own original manufacturing methods.

Related materials:

Despite the rapid development of satellite and cable television, the reception of terrestrial television broadcasts still remains relevant, for example, for places of seasonal residence. It is not at all necessary to buy a finished product for this purpose; a home UHF antenna can be assembled with your own hands. Before moving on to considering the designs, we will briefly explain why this particular range of the television signal was chosen.

Why DMV?

There are two good reasons to choose designs of this type:

1. The thing is that most channels are broadcast in this range, since the design of repeaters is simplified, and this makes it possible to install a larger number of unattended low-power transmitters and thereby expand the coverage area.
2. This range is selected for digital broadcasting.

Indoor TV antenna “Rhombus”

This simple, but at the same time, reliable design was one of the most common in the heyday of on-air television broadcasting.

Rice. 1. The simplest homemade Z-antenna, known under the names: “Rhombus”, “Square” and “People’s Zigzag”

As can be seen from the sketch (B Fig. 1), the device is a simplified version of the classic zigzag (Z-design). To increase sensitivity, it is recommended to equip it with capacitive inserts (“1” and “2”), as well as a reflector (“A” in Fig. 1). If the signal level is quite acceptable, this is not necessary.

The material you can use is aluminum, copper, and brass tubes or strips 10-15 mm wide. If you plan to install the structure outdoors, it is better to abandon aluminum, since it is susceptible to corrosion. Capacitive inserts are made of foil, tin or metal mesh. After installation, they are soldered along the circuit.

The cable is laid as shown in the figure, namely: it did not have sharp bends and did not leave the side insert.

UHF antenna with amplifier

In places where a powerful relay tower is not located in relative proximity, you can raise the signal level to an acceptable value using an amplifier. Below is a schematic diagram of a device that can be used with almost any antenna.

Rice. 2. Antenna amplifier circuit for the UHF range

List of elements:

• Resistors: R1 – 150 kOhm; R2 – 1 kOhm; R3 – 680 Ohm; R4 – 75 kOhm.
• Capacitors: C1 – 3.3 pF; C2 – 15 pF; C3 – 6800 pF; C4, C5, C6 – 100 pF.
• Transistors: VT1, VT2 – GT311D (can be replaced with: KT3101, KT3115 and KT3132).

Inductance: L1 - is a frameless coil with a diameter of 4 mm, wound with copper wire Ø 0.8 mm (2.5 turns must be made); L2 and L3 are high-frequency chokes 25 µH and 100 µH, respectively.

If the circuit is assembled correctly, we will get an amplifier with the following characteristics:

• bandwidth from 470 to 790 MHz;
• gain and noise factors – 30 and 3 dB, respectively;
• the value of the output and input resistance of the device corresponds to the RG6 cable – 75 Ohm;
• the device consumes about 12-14 mA.

Let's pay attention to the method of power supply; it is carried out directly through the cable.

This amplifier can work with the simplest designs made from improvised means.

Indoor antenna made from beer cans

Despite the unusual design, it is quite functional, since it is a classic dipole, especially since the dimensions of a standard can are perfectly suitable for the arms of a decimeter range vibrator. If the device is installed in a room, then in this case it is not even necessary to coordinate with the cable, provided that it is not longer than two meters.

Designations:

• A - two cans with a volume of 500 mg (if you take tin and not aluminum, you can solder the cable instead of using self-tapping screws).
• B – places where the cable shielding is attached.
• C – central vein.
• D – place of attachment of the central core
• E – cable coming from the TV.

The arms of this exotic dipole must be mounted on a holder made of any insulating material. As such, you can use improvised things, for example, a plastic clothes hanger, a mop bar or a piece of wooden beam of appropriate size. The distance between the shoulders is from 1 to 8 cm (selected empirically).

The main advantages of the design are fast production (10 - 20 minutes) and quite acceptable picture quality, provided there is sufficient signal power.

Making an antenna from copper wire

There is a design that is much simpler than the previous version, which only requires a piece of copper wire. We are talking about a narrow band loop antenna. This solution has undoubted advantages, since in addition to its main purpose, the device plays the role of a selective filter that reduces interference, which allows you to confidently receive a signal.

Fig.4. A simple UHF loop antenna for receiving digital TV

For this design, you need to calculate the length of the loop; to do this, you need to find out the frequency of the “digit” for your region. For example, in St. Petersburg it is broadcast on 586 and 666 MHz. The calculation formula will be as follows: L R = 300/f, where L R is the length of the loop (the result is presented in meters), and f is the average frequency range, for St. Petersburg this value will be 626 (the sum of 586 and 666 divided by 2). Now we calculate L R, 300/626 = 0.48, which means the length of the loop should be 48 centimeters.

If you take a thick RG-6 cable with braided foil, it can be used instead of copper wire to make a loop.

Now let's tell you how the structure is assembled:

• A piece of copper wire (or RG6 cable) with a length equal to L R is measured and cut.
• A loop of suitable diameter is folded, after which a cable leading to the receiver is soldered to its ends. If RG6 is used instead of copper wire, then the insulation from its ends is first removed, approximately 1-1.5 cm (the central core does not need to be cleaned, it is not involved in the process).
• The loop is installed on the stand.
• The F connector (plug) is screwed onto the cable to the receiver.

Note that despite the simplicity of the design, it is most effective for receiving “digits”, provided that the calculations are carried out correctly.

Do-it-yourself MV and UHF indoor antenna

If, in addition to UHF, there is a desire to receive MF, you can assemble a simple multiwave oven, its drawing with dimensions is presented below.

To amplify the signal, this design uses a ready-made SWA 9 unit; if you have problems purchasing it, you can use a home-made device, the diagram of which was shown above (see Fig. 2).

It is important to maintain the angle between the petals; going beyond the specified range significantly affects the quality of the “picture”.

Despite the fact that such a device is much simpler than a log-periodic design with a wave channel, it nevertheless shows good results if the signal is of sufficient power.

DIY figure eight antenna for digital TV

Let's consider another common design option for receiving “digits”. It is based on the classic scheme for the UHF range, which, because of its shape, is called “Figure Eight” or “Zigzag”.

Rice. 6. Sketch and implementation of the digital eight

Design dimensions:

• outer sides of the diamond (A) – 140 mm;
• internal sides (B) – 130 mm;
• distance to the reflector (C) – from 110 to 130 mm;
• width (D) – 300 mm;
• the pitch between the rods (E) is from 8 to 25 mm.

The cable connection location is at points 1 and 2. The material requirements are the same as for the “Rhombus” design, which was described at the beginning of the article.

Homemade antenna for DBT T2

Actually, all of the examples listed above are capable of receiving DBT T2, but for variety we will present a sketch of another design, popularly called “Butterfly”.

The material can be used as plates made of copper, brass, aluminum or duralumin. If the structure is planned to be installed outdoors, then the last two options are not suitable.

Bottom line: which option to choose?

Oddly enough, the simplest option is the most effective, so the “loop” is best suited for receiving a “digit” (Fig. 4). But, if you need to receive other channels in the UHF range, then it is better to stop at “Zigzag” (Fig. 6).

The antenna for the TV should be directed towards the nearest active repeater, in order to select the desired position, you should rotate the structure until the signal strength is satisfactory.

If, despite the presence of an amplifier and reflector, the quality of the “picture” leaves much to be desired, you can try installing the structure on a mast.

In this case, it is necessary to install lightning protection, but this is a topic for another article.

The indoor antenna allows you to receive terrestrial television, analogue and digital, at home. Analog television is gradually becoming a thing of the past, and digital television is becoming increasingly widespread.

Currently, there are two multiplexes with 10 channels each, work is underway to introduce a third multiplex with another 10 channels, some of them will be in HD quality. The first two multiplexes are free, but the third one may require a fee.

To connect to terrestrial digital television you will need:

• install a decimeter antenna, indoor or outdoor;
• purchase a special digital set-top box if your TV does not support receiving a DVB-T2 signal;
• connect the antenna and set-top box with a television cable.

Many companies provide services for connecting to terrestrial television. But it’s actually easy to make and set up an indoor antenna with your own hands. After that, you will be able to watch 20 channels in digital quality for free.

Different ways to make an antenna

You can make an indoor TV antenna with your own hands in different ways from different materials. First, make sure that your home is in a reliable reception area. This can be checked on the official website of digital terrestrial television. If you are far from the broadcast tower, then you will not be able to catch the signal with any antenna - neither purchased nor homemade. Purchase a passive or active external antenna. Although some of the instructions below on how to make an antenna with your own hands are also suitable for external use.

Let's consider one of the simplest methods - making it from a coaxial cable:

It’s also easy to make a TV antenna from beer cans with your own hands. Moreover, it can be used as an indoor room, or it can be placed outside:

This design works great, although it does not look very aesthetically pleasing.

A zigzag antenna is more difficult to make with your own hands, but it has proven itself to be universal and reliable:

You can easily make an antenna out of a cardboard box with your own hands:

The beer can design has a more aesthetic option, the so-called butterfly. 4 rows of screws are fixed on the board, and instead of transverse slats, pieces of copper wire bent in half are used. Thus, you get rows of copper “forks” sticking out in different directions. The rows are also connected to each other by wire, output to a cable, then you just need to connect it to the TV.

Connection and setup

Setting up an indoor antenna consists mainly of its correct installation:

1. Secure it as close to the window as possible so that there are no obstacles (reinforced concrete walls, metal bars) in the signal path.
2. Connect to your TV or digital set-top box.
3. Now you just need to configure the programs: start an automatic search through digital channels.
4. If a channel is found, but the screen says “no signal,” try installing the antenna in a different location, and then tune the channels again by running auto search.

And finally, instructions on how to connect the cable to the TV connector:

These are some ways to make your own TV antenna. Theoretically, any piece of metal wire can serve as an antenna. But there is no guarantee that this will be enough to adjust the signal reception in your conditions. If you have ideas on how else you can design an effective indoor antenna yourself, leave your comments and tips below.

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A super simple and super quick to make antenna from a coaxial cable for receiving digital television channels can be made with your own hands in about 5 minutes. For this you will need absolutely nothing except the cable itself. And this is the main advantage of this antenna.
You can't live without a TV now.

This design will definitely help you out, for example, when you have just moved into your home and have yet to install a cable or install a stationary antenna. Of course, this is not the only example where this truly simple loop antenna will help.
Now in the comments someone will definitely write that there are even simpler antennas, like a whip one. To make it, it will be enough to simply remove two insulations from the cable and everything will work. Of course, I agree with this, but the loop antenna that I will make from coaxial cable will have much greater gain, due to its directivity and resonant closed circuit.

Making an antenna from coaxial cable

This is what the version made from black cable looks like.

Now let's start making the antenna in order. All we need is less than half a meter of coaxial cable of any color. I took the white one.

We retreat 5 cm from the edge of the cable and remove the top insulation.

Next, remove the insulation from the central core.

Now we twist everything together neatly and tightly.

Then, from the edge with the insulation removed, we retreat 22 cm and cut out a 2 cm piece of the top insulation and the shielded wire from the hose, without touching the insulation of the central core.

Now we measure another 22 cm from the end of the cut and make a cut 1 cm wide only by removing the top insulation. We do not touch the cable shield.

Next, take the end of the cable from which we started. And we wrap it very tightly at the last cut, forming a circle of the antenna.

At this point, our antenna is ready for use. Of course, this is not necessary, but if you hang the antenna outside, it is better to insulate all exposed areas of the cable with electrical tape. You can also add a rigid frame, but this is optional.

Antenna location

We direct the antenna to a repeater or television tower. The direction can also be selected experimentally by rotating the antenna.
The best option would be to place it outside the window, since the walls of the house greatly dampen the high-frequency signal.

The test showed excellent results

If you still don’t understand how to make an antenna from a cable, be sure to watch the video below or ask questions in the comments.

How to make an antenna for a TV with your own hands so that it is not inferior in quality to a purchased device is a question that interests many home craftsmen and TV enthusiasts. There are various ways to make an antenna yourself, from the simplest designs to devices that receive satellite signals.

This option is suitable for people who want to install a regular indoor antenna at home or in the country for viewing federal channels. Anyone can construct such a device; no special knowledge is required.

This is the most basic method, so you only need copper wire 70–90 cm, thickness 2–3 mm. An indoor antenna is made as follows:

1. Strip both ends of the copper wire.
2. Attach one end to the battery, and insert the other into the TV connector.

The signal will appear immediately, and from 1 to 5 channels will be available to the user. With this simple method you can make a home antenna in 5 minutes.

The most popular way to make an antenna with your own hands from scrap materials. To make this you will need beer cans. Experts say that it will take no more than an hour to assemble an antenna from beer cans.

You will need:

1. Connecting cable.
2. Several cans of beer.
3. Plug.
4. Screws in the amount of 2 pieces.
5. Screwdrivers.
6. Insulating tape or heat shrink tubing.
7. A wooden beam or metal pipe for mounting the antenna.

You can make a homemade antenna from tin cans according to the following scheme:

This is another easy option on how to make a TV antenna in a short time. The device picks up the signal well, providing high image quality.

All-wave antenna with amplifier

An all-wave antenna with an amplifier can be of different configurations. Its assembly takes more time than the first two options. But the advantage is that it is very powerful and receives all analog channels in excellent quality. One of the common options is the all-wave antenna of the “BUTTERFLY” shape.

Tools:

1. Board or plywood sheet, dimensions 550/70/5 mm.
2. Copper wire.
3. Connecting cable PC75.
4. Drill.
5. Soldering iron.
6. Plug.

Instructions:

The DIY TV antenna is ready for use.

UHF antenna

Homemade antennas that pick up a decimeter signal can be of a variety of configurations.

Option 1

The simplest option is considered it is relatively easy and simple to assemble.

You will need:

1. Plywood.
2. Cord.
3. Soldering iron.

Instructions:

1. Make a ring from the connecting cable, size 53 cm.
2. Cut another piece of cable to make a loop, size 17.5 cm.
3. You need to solder a loop to the ring and a cable that will be inserted into the screen.
4. Attach the structure to the plywood.
5. Point the assembled device towards the TV tower.

Thus, a UHF antenna is assembled with your own hands.

Option 2

Another possible method for making a TV antenna UHF band called "Eight".

Tools:

1. Wire (copper, aluminum).
2. Glue gun.
3. Cable.
4. Wire cutters.

Instructions:

This is another way you can make an antenna yourself.

This device's signal range can reach up to 490 MHz, this means that the picture quality will be very high. But for manufacturing you need to purchase a transformer.

You will need:

1. Transformer.
2. Foil.
3. Glue.
4. Roulette.
5. Cardboard.
6. Stapler.
7. Marker.

Instructions:

The device is ready for use.

DIY satellite dish

One of the most popular questions is, is it possible to make a satellite dish with your own hands? There are many videos on the Internet on how to make a dish for watching satellite television yourself.

This device can be made at home in two ways:

1. Sticking on the matrix.
2. Soldering mesh and wire.

The first manufacturing method is considered the most optimal and convenient. To do this, you need to make a drawing of the future device. The work must be approached very responsibly at this stage, all parameters must be calculated accurately, otherwise the output will be a device unsuitable for operation. The drawing draws a parabola, which is then transferred to a steel sheet. Its thickness should be 0.05 cm.

Stages of work

1. Using a welding machine, make a steel frame with a diameter of 9–10 cm. The steel rods are turned to the outside, and the bearing is welded to the center.
2. Install the resulting structure on a level place, and a pipe is attached to the installed bearing, then a knife is installed.
3. Then the frame is filled with concrete and dried for 5 days.

At the final stage, it is necessary to glue the antenna; this can be done in different ways. To make work easier, it is recommended divide the structure into 8 parts. For gluing, fiberglass or epoxy primer is used.

Apply machine oil to the dry concrete form and insert the pipe into the washer. Afterwards, the homemade plate is covered with resin and the fiberglass is glued. The manufacturing process of the device is completed. Read also,.