7 ways to make the antenna to the TV with his own hands

If you during your stay at the cottage or vacation suddenly needed a TV antenna, a hand model factory not it turned out, you can do without your favorite TV programs, but much more interesting, and to make such a device more quickly independently. It can be made for the reception of certain channels in the meter or decimeter band. Next we look at how to make the antenna to the TV with his hands in several ways, from which you can choose the most suitable for themselves.

The antenna of the coaxial cable

Quite simple embodiment of an indoor antenna, which can be easily implemented in a home environment in a short time. Designed for receiving television channels in the UHF broadcast band. For its production, you will need a piece of coaxial cable, plywood or other sheet material as a base, an insulating tape for fixing a knife and soldering.

• Take a piece of coaxial cable length of 0.53 m and bend it in the form of a ring (1) with open edges and lock in a form on a sheet of plywood;
• From the same piece of cable cut to a length of 0,175 m loop (2) and connect as shown.
• Connect the cable (3) on the second end of which set the connector for connecting to a TV.

The simplest dish is ready, but it may not be enough to receive the signal, so you will need to block the active amplification. Or produce a more complex model in the form of an eight.

Antenna "eight"

Pretty simple version of a homemade antenna, it can be collected within a few minutes. For this you need either a cardboard box, in this case, used a shoe, aerial cable, Plug, stationery knife, soldering, adhesive tape, foil and glue.

The manufacturing process consists in alternately performing such steps:

• Open the box and clean the interior surface of the accumulated dust and debris if they are missing, you can go directly to pasting.
• Coat the bottom of the box thin adhesive layer, it is important to not change the geometric parameters, the foil disposed thereon. Paste over the bottom of the foil - it will act as a signal reflector.

  

• Close the box and seal with tape, so that it can not open spontaneously.
• On the cover, set the two cables in the form of a piece of eight, which secure the tape side.

  

• Eight middle strip the cable and draw two conclusions from the metal sheath to connect the antenna.

  

• Cut a piece of wire for connection to a TV antenna, its length is selected in accordance with the distance from the installation site to the TV or digital set-top boxes.
• One end of a connecting strip the lace under the connector, a second smooth out so as to collect the output from the screen and the output from the central conductor through 1 - 2cm isolation.

  

• Connect the leads to the terminals eight, as shown in the figure.

  

To the second end, connect the TV-out connector, and connect to a TV.

Antenna "eight" is ready for use, today it would be an excellent replacement for satellite TV because of the digital signal picture it does not yield.

Double and triple the square

Unlike the previous version of the assembly of the antenna in the form of double and triple the square will require much more effort. But such a device would allow to make even weak TV signals, important to provide precise orientation on the repeater. The quality does not depend on the distance to the source, the main observe dimensions. For its production, you will need: metal tubes (copper, brass, aluminum) or rods, dielectric rods, wooden base for the bearing structure, and wiring harness.

Depending on the diameter of tubes antenna can receive different number of channels in a given frequency range:

• 10 - 20mm is suitable for reception in the meter range, can catch from 1 to 5kanalov.
• 8 - 15 mm is suitable for reception in the meter range, can catch 6 to 12 channels.
• 3 - 6 mm for channels in the UHF range.

As you can see in the figure, structurally double and triple the square represents two and three frames of regular shape, different sizes. Depending on the dimensions will vary and the length of the received wave.

Table: dependence of the size of the received wave meter range, mm

Wavelength	1	2	3	4	5	6	7	8	9	10	11	12
AT	1450	1220	930	840	770	410	390	370	360	345	330	320
R	1630	1370	1050	950	870	460	440	420	405	390	375	360
BUT	900	760	580	530	480	250	240	230	220	210	210	200
W	1500	1260	970	880	800	430	410	390	375	360	350	335

Table: dependence of the size of the received wave UHF, mm

Channels, pcs	AT	R	BUT	W
21-26	158	170	91	152
27 – 32	144	155	83	139
33 – 40	131	141	75	126
41 – 49	117	126	68	113
50 – 60	105	113	60	101

For triple square dimensions are given in the table below

Table: dependence of the size of the received wave meter range, mm

channels	1	2	3	4	5	6	7	8	9	10	11	12
D	1255	1060	825	750	688	370	354	340	325	312	300	290
AT	1485	1260	975	890	812	438	418	400	385	370	357	345
R	1810	1530	1190	1080	990	532	510	488	470	450	435	420
BUT	630	532	412	375	345	185	177	170	163	157	150	145
B	915	775	600	545	500	270	258	246	237	228	220	210
W	1500	1260	970	880	800	430	410	390	375	360	350	335

Table: dependence of the size of the received wave UHF, mm

Channels, pcs	D	AT	R	BUT	B	W
21-26	134	158	193	67	98	152
27 – 32	122	144	176	61	89	139
33 – 40	110	131	160	55	80	126
41 – 49	99	117	143	50	72	112
50 – 60	89	105	129	45	65	102

Shown in Figure shorted bridge designed to connect the frame to a symmetrical and asymmetrical cable acts as a matching unit.

The manufacturing process includes the following stages:

1. Fold the tube in the form of squares in accordance with the size;
2. Connect their top boom of conductive material, and the bottom boom of a dielectric material;
3. Set external antenna to a wooden support;
4. To cut the cable and separate the braid into a single output;
5. Connect the cable to the antenna, and a second end seal the antenna connector for transmitting television broadcast to a television.

The antenna is ready, this option is suitable for outdoor use, so it is best to install it on a roof or free-standing pedestal.

If you can find at home a couple of flat beer cans from tinplate or aluminum, then you have the ability to quickly assemble a good TV receiver. To do this, you need to take two cans of an increasing volume, a good result will be achieved with a volume of 1 liter, but if not, then descend and 0.5 liters, screwdriver screwdriver or a pair of screws, soldering, adhesive tape, cable television, substrate of dielectric material (in this case a wooden trempel).

The manufacturing process of the antenna of metal cans consists of the following stages:

• Rinse and dry cans from moisture, but care should be taken not to crush the wall. The smoother the banks, the better the received signal television receiver.
• Remove the top layer of insulation from the television guide, about 5 - 10 cm, so that only the metal sheath. Gently twist it into a kind of conductor. Then remove monolithic insulation from the central core to receive the bare metal.

  

Make loops to connect to the output conductor and braid.

• Sand the surface of the cans in the ground connection of the wires from the paint and varnish to get the bare metal. Secure hinges with screws - one jar from the screen, the second of the core. To improve the signal quality is desirable to solder the wires to the banks other than screws compound.
• Place the jars on the shoulders trempelya and secure with tape - from the antenna cans ready.

  

After installation, perform channel tuning by changing the distance between the banks. The optimum position is chosen based on signal quality on the TV. Such an antenna will take about seven analog TV channels.

In a frame

For manufacturing such an antenna you need aluminum plate, a metal mesh for the manufacture of the reflector (on barbecues, for plaster, etc.), nuts and bolts or rivets for fixing the frame parts, with plug cable to connect the TV to the room, a drill, a screwdriver and pliers.

The manufacturing process of the antenna is as follows:

• Cut aluminum correct size band and drill holes at their ends for bolting.
• Assemble the frame as shown in the figure above, the connection points are mounted overlapping. To prevent oxidation of these points is desirable to cover them with paint or varnish.
• For points A and B on the antenna, connect the TV cable to the antenna connector.
• Secure the frame to the reflector, most importantly, pay attention to the latter not to short the electric circuit of the antenna itself.
• Install the mast in place and provided for this place.

If the signal is weak, the receive antenna can be more potent by incorporating chain antenna amplifier.

In the shape of a butterfly

Another variant-wave antenna, which is able to receive a sufficiently large number of channels in good quality. What makes her work can replace the use of satellite dishesBut also the manufacturing process requires the utmost attention, accuracy and time. Structurally, it consists of wooden planks and a few pieces of copper wire with a living 4mm, curved in the shape of a butterfly's wings, hence the name of the model. Initially, you need to mark the location of the holes on the board and drill them according to the scheme:

Next, you need to:

• Cut into 8 pieces of equal 37,5sm wire according to each segment 2 for connecting the "wings" of 22 cm 2 pieces and to connect to the socket;
• For making electrical contact to strip the insulation pieces as shown.

  

• Bend the pieces of wire bared portions, V-shaped turn be with equal sides of 7.5 cm and the distance between the ends.
• Set on a wooden board all the wire elements, as shown, and secure with screws.

  

• Connect the wires from the receiver into the slot, to connect the cable to transmit the signal.

  

Broadband Antenna ready to use, you can install it in the most suitable place in the room for the reception of television signals.

Zigzag antenna Kharchenko

This embodiment is an antenna for broadcast digital television, which is carried out in the decimetre range. The main advantage that the digital signal is either there or it is not present at all, so the image is pretty high quality.

Structurally Kharchenko antenna composed of two rhomboids, which are made of conductive materials. For them suitable copper or aluminum wire, rod, angle, or bus. Schematic representation of the zigzag antennas given below.

In this case, the size should be calculated on the basis of wavelength. For receiving a digital broadcasting wave length divided by 4 - and it will envelope B1, and to configure the antenna to a wideband direction B2 to do 1cm smaller than B1, for example, in a ratio of 12.5, and 11,5sm. You can use pliers, vise or a hammer to bend the copper wire. On the reverse side of the antenna reflector is present for best TV reception signal, but this refinement was relevant for analog TV, digital TV set its optional.

In addition to the wire for the manufacture of the device you'll need a TV cable for receiver placement frame, insulation, plug for connection. Of the tools take the grinding wheel or nazhdachku, a soldering iron.

The manufacturing process includes the following stages:

• Prepare the wire the right length, in this case, a 112mm, if you use other dimensions, we must not forget about the stock in place of inflection.
• Bend the antenna wire, as shown in Scheme observing angles 90º and making a smooth rotation in the bending areas.

  

• To connect the ends, make the slots and connect a thin wire or make two loops and connect them together, for better contact and to prevent oxidation of the tin tinning. If the conductor is present lacquer, it should clean off before tinning.

  

• Repeat the same procedure on the opposite side to get a second contact. The distance between them should turn the order of 2cm.
• Coaxial cable strip the two sides - one for connection to the antenna, a second input for a signal receiver. For antenna you want to remove the external insulation 3 - 5cm and assemble multiwire braiding into a single output. To smooth out the TV about 1 - 2 cm and solder to the plug.
• Place the antenna on the base, and solder it to the cable.

  

• For weather protection and provide additional rigidity of the soldering hot melt processed.

  

The antenna is ready to connect to your TV, if all the requirements specified by the designer, you get a great version of the device, the parameters are not inferior to the factory model.

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