Advice 1: How to connect coaxial cable

Coaxial cables, as usual, have to mend, to build, equip connectors. The need to implement these operations occurs when the cable breaks, are connected to move it to another location, connecting new devices.
How to connect coaxial cable
Instruction
1
If the cable needs to be strengthened, get an additional cut necessary length. Its impedance should be the same as at the existing cord. If this option is available cable is unknown, should be guided by the rule: television antenna connected by a cord with a characteristic impedance of 75 Ohms antenna radio range of si-Bi - cable with a characteristic impedance of 50 Ohms. The same characteristic impedance are cables for computer networking an obsolete standard (today such networks are practically out of use).The thickness of the cable is selected depending on its purpose. Apply a thick cord is needed in two cases: large length (to reduce fading) and large power of the transmitted signal. If at least one of these conditions is observed, the cable should be of large diameter.
2
Before performing any operations with the cables must be disconnected from the network all connected equipment. Many devices have capacitors connecting the common wire with one of network wires. In this case, if you grab both, braid or center conductor of two cables or two ends of one cut cable,you can get a painful shock.Even turning off all the equipment before simultaneously touching the two conducting parts of cables in any combination, make sure there is no voltage between them using an AC voltmeter. If the cable leading to the transmitting device (e.g. radio standard si-Bi), you should also ensure that no high frequency voltage by means of the wavemeter. Even at low power, the impact of such tension on the skin can cause burns.
3
To splice the cables by twisting or soldering can be used only if the connected instrument is not transmitting, as this connection is deteriorating ratio of the standing wave that threatens transmitting equipment failure.First, strip both cables. Make a longitudinal incision on the outer insulation, braid rasplatita, then pushing it to the side, twist. Then with wire cutters, remove the insulation from the Central core.Connect the braided single cord with the other braid, then do the same with the Central conductors. In any case do not short-circuit between the braid and inner core. If soldering is used, perform it quickly so as not to melt the insulation of the Central core, which also threatens to short.All connections are thoroughly insulated.
4
To a much lesser extent modifies the standing wave ratio when connecting coaxial cables with connectors. They are of two types: F (TV) and BNC. For transmitting equipment only suitable the second. They, in turn, must have the same characteristic impedance as the cable, and therefore is available in two versions: and SR50 SR75.For connection cables with connectors purchase the plug and the socket are of the same standard. Better if they are designed for joining without the use of solder, to avoid the risk of short circuit from melting the insulation of the Central core.Attaching to one end of the cord into the plug, to another socket, connect them with each other. If the connectors have exposed contacts (normally in this version are available outlet), isolate them.
5
If the instrument is used together with the cable is transmitting, be sure to check with a meter standing wave ratio, it did not work if the setting is within the permissible limits. After that proceed to the use of the equipment.

Advice 2: How to connect two antennas

Satellite television, in contrast to the usual ethereal, allows you to view on the new LCD and LED TVs with digital channels in HD quality. Thus, paint on the screen look realistic, and the picture allows you to create a "presence effect". To be able to cover the entire spectrum of TV channels from all available satellites in orbit, you can apply or metacodes for satellite aerial, or to connect one receiver to two or more dishes at the same time.
How to connect two antennas
You will need
  • - DiSEqC.
Instruction
1
Install two satellite antennas. The most traditional variant: one "looks" to the West and has three heater – on satellite Amos 2/3 4W, Astra at 4.8 E(Sirius 5E) and HotBird 13E, the second towards the East, where the satellites ABS 1 75E, 80E Express AM2 and Yamal 201 90E. When installing them make sure that the brackets to which they are attached, or were horizontal (on the wall) or vertical (on the roof). In addition, before the antennas should not be tall buildings or tall trees that might block the satellite signal.
2
Set the first "Western" antenna. To do this, connect the coaxial cable to the Central heater (Astra 4,8 E), and then into the slot receiver in LBN. Latest connect to a TV and tune to the channel that will show a satellite TV. Further, switching of TV channels switch the remote control receiver. Menu tuner, select the satellite Astra 4,8 E, if not – mount it manually. Install these settings transponder – 11766h27500, DiSEqC off. Put the antenna vertically and move to the right until it stops. Moving it to the left, catch the satellite signals and bring its power up to 80-90%. It will be seen at the bottom of the settings window. Fix the antenna in that position.


3
Turn off the satellite receiver and connect the cable from the heater Amos2/3 4W. Adjusting the heater on the bar, set up for satellite. Also select the signal on the satellite HotBird 13E. Set up the same way the second antenna, since Express AM2 80E. At the same time to connect the two antennas to a single receiver, use an electronic device DiSEqC 8-1 (8 – inputs, 1 – output). Connect the coaxial cables from all six heaters to it, and the output cable to the receiver. Turn it on in the settings menu of the satellites "include" DiSEqC. Receiver scan all transponders six satellites and save the channels. In the same way you can connect three, four, etc. satellite dishes should only take a DiSEqC with a large number of inputs.

Advice 3: How to connect the capacitors

Capacitors can be connected either in series or in parallel. The resulting capacity in both cases are calculated according to formulas. This connection is used in cases where there are no capacitors with the required parameters, but there are others.
Different capacitors
You will need
  • - soldering iron;
  • - wires;
  • cutters;
  • calculator.
Instruction
1
Any capacitors can be connected only when they are discharged and are disconnected from other circuit elements. Do not discharge them short circuit - use a suitable load. Use insulated wires without touching live parts. Discharging the capacitor, check with a voltmeter that it really is discharged using the test leads with insulated wires and handles and not touching live parts.
2
Before the calculation of the capacitors should be converted to the same units. In this case, use of the SI system is not rational, as part of her unit - Farad is very large. Depending on what capacitors you connect, you can use picofarads, nanofarads or microfarads.
3
Connecting capacitors in parallel, the resultant capacity calculate just summing the capacity of all capacitors. The working voltage of this design is equal to the lowest of the voltages of its constituent capacitors.
4
A series connection of capacitors to first find the inverse capacitance of each, then fold these values, and then find the inverse value. The reciprocal is called the result divided by the number. This looks so: Result=1/(1/C1+1/C2+ ... +1/SP), where Result - the resulting capacitance, C1...Cn - capacitors in a sequential chain. With a working voltage of this design is more complicated. In theory, a series connection of capacitors of the same capacity, it is sufficient to lay down their working voltage, but if their capacities are different, the voltage distribution on them is inversely proportional to the tanks. In practice, the variation and leakage can lead to unpredictable stress distribution. Therefore, it is safest to follow the same rule as that at parallel connection: operating voltage of the whole structure equal to the working voltage of that capacitor, which it is smallest.
5
Mixed (series-parallel) connection of capacitors, separate design group of the capacitors connected only in series or only in parallel. Calculate the parameters of each group, and then treat it as a single capacitor with the appropriate parameters. Then see how connected these groups are in series or in parallel and produce the appropriate formula for the calculation of the parameters of the whole structure. Polar capacitors, connect in same polarity and the same polarity include the design of the scheme, where it will work. Connect the counter-consistently, the two polar capacitor of the same capacity for obtaining non-polar is not recommended - the variation and leakage can lead to their failure. At least one polar capacitor polar makes the entire structure.
6
Sometimes electrolytic capacitors shunt (connecting in parallel) ceramic a much smaller capacity. In this case, to consider that any formula is not necessary, because the addition of capacitance can be neglected. And doing so is not to increase capacity, and to filter high frequency noise which is not removed by the electrolytic capacitor because of the parasitic inductance.

Advice 4: How to connect the aerial cable

Aerial cable is suitable for connecting an outdoor antenna to the access point located indoors. The antenna cable can improve the quality of the received signal. To connect the antenna cable it is recommended to use a special adapter.
How to connect the aerial cable
Instruction
1
The antenna cable is badly bent, so proper installation requires a flexible adapter. In the commercially available connectors for the antenna cable with a diameter of 6 mm thick Central core.
2
For mounting the connector, do not need soldering equipment. Remove the top insulation to a length of about 20 mm. Trim the top layer of insulation around the circumference. Try not to damage the metallic braid. Braid, wrap the outside of the cable like a sock.
3
Remove the inner insulation of the Central core. On the wrapped braid using a pair of pliers screw the nut. The coaxial connector is ready. Screw it on the antenna plug. To connect to the antenna multiple receivers, connect the plug to the splitter and antenna amplifier.
4
The capacity of the antenna cable with the goal of lengthening is made through a device connector, the usual twisting or soldering will lead to a deterioration of the operating parameters of the cable. Another option of increasing the antenna cable using a special flexible cord. Assembled extension cable is a drum placed on it flexible antenna wire, the closed plastic housing.
5
When using hard antenna cable should not bend or collapse the coils – this can lead to a significant deterioration of signal quality.

Advice 5: How to connect two TVs

If you connected a cable or satellite TV, then distribute the signal to multiple TV sets at once with maybe a splitter and RF-coaxial cable.
How to connect two TVs
Instruction
1
Please contact the store of purchase and teleradiocentre RF coaxial cable. When buying, consider where it will be on TV, and what is the distance between them, the cable was easy to build. Pay attention to the condition of the cable, as it will depend on how well the TV will play the signal from the antenna.
2
Buy and splitter (splitter), the device having one port for the antenna and two-three for TV sets. Don't buy a cheap splitter from unknown manufacturers, or may occur, the probability of circuit and, as a consequence, the failure of the entire system.
3
Prepare for the laying of the cable. Unplug all unnecessary at the moment, the appliances, check the status of the transaction. If you want all of your installation work is not too conspicuous, lay the cable along the walls behind furniture. Furniture in advance to push, and after you lay the cable, gently push, to avoid damage.
4
Select a location for the installation of conventional or satellite antenna. Put a regular antenna as high as possible, to ensure the quality of signal reception, connect the two satellite tuner.
5
Connect the antenna to the splitter RF coaxial cable through the designated port. Connect TVs in series in the other ports.
6
Attach the RF coaxial cable along the baseboard so not to step on it with electrical tape. Ensure that there is no likelihood of damage to the cable.
7
Turn on the TV to check the signal quality. If one of the TV reproduces the picture of poor quality or does not work, check the cable along the entire length and verify that it is securely fastened and not damaged.

Advice 6: How to connect to cable for free

The cable TV connection is quite an important question. Today there is a constant rise in prices, and some of the residents of the houses slowly turned off some services. But TV viewing is possible without payment, and from your side everything will be official.
How to connect to cable for free
You will need
  • A modern TV.
Instruction
1
I'm sure many know that a few channels broadcasting and cable television you can always catch it on the antenna of any type. Under the antenna means any segment of wire, preferably between 40 cm and more. To try the "catch" of the channels on your TV with this wire, it is enough to turn it off, rotate and paste cleaned the contact from the insulation in the slot for the coaxial wire.
2
Here immediately it is worth noting that the quality of such reception of channels depends on the terrain, the wire material and the thickness of the walls of your home. If you live in a private house, and the site is located just above the buildings or on the plot there is a high wire, it is recommended that long wire, the ends of which connect with a very simple (even home made) antenna. Guarantee show all channels of your city of the broadcast will be nearly 90%.
3
But what to do if you do not live in the private sector, and are available in flat wire barely cope with the task, giving only "First" and "Russia"? Contact your Internet service provider. Surely you will say that this service will be worth the money. In fact, it is, but there are exceptions. For example, the provider begins to conduct fiber optic connection throughout the city, but not every resident knows about its capabilities.
4
What does the provider do in this case? He gives one or two months totally free access to the Internet and television. But not cable, and IP TV, which implies a high-quality display of the channels.
5
Among other methods there is a chance to "capitalise" on the source cable broadcasting, for example, to use a special antenna. The principle of such devices is quite simple — they scan signal to the TV, for example, your neighbor. It is worth noting that "capture" the signal from a cable TV broadcast, coming via coaxial cable, it is difficult. But to catch the signal of the same TV from a satellite dish, which is now becoming more and more urban backyards, is quite real.
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