A large number of people today, in view of the increasing popularity of the Internet, are increasingly asking questions about how to increase its power. High speed access is possible only in those places where there is a maximum signal level. In the event that it is weak in your area, then the loading of pages will take a long time. To solve this problem, you can use an external antenna.
The most popular are the following types of home-made devices: made from a can, Harchenko's antenna and a non-contact adapter. It should be understood that it is not necessary to increase the number of percent or decibels, but to increase the speed if a 3G modem is connected.
Also, the simplest version of such a device can be made using copper wire. For example, if you wind three or four turns on the end of the modem, where the built-in antenna is located, then the speed can be sharply increased. But this solution requires increased accuracy and skill, because for each device it is necessary to select a certain number of turns.
One of the easiest ways to increase speed is the Harchenko antenna for a 3G modem. In this case, you can create a fairly simple and effective design. It consists of two square-shaped elements. This antenna is designed for a frequency of approximately 2100 MHz. To achieve this result, one should keep in mind such characteristics: the wavelength reaches 143 millimeters, the sides of the frame - 53 mm. The copper wire, which is approximately four millimeters thick, should be curved. In this case, the Kharchenko antenna will create the desired effect.
It is also necessary to strictly observe all sizes. In order for the resistance inside to be reduced, special elements having the shape of a rhombus should be made. The internal angles of such parts should reach approximately 120 degrees. After the Harchenko antenna acquires the proper form, a special cable should be connected. To increase the efficiency of the device, it should be equipped with such a part as a reflector. The whole structure obtained is ultimately soldered to the antenna.
Let us explain that the reflector is a metal plate, the creation of which uses foil textolite. This element should not be mounted directly to the antenna. Between them there should be a distance of about 36 millimeters. And finally, the Kharchenko antenna should be connected to the modem. As you know, this device does not have special connectors necessary for such devices, so the wires from the latter should be wrapped around a 3G device and fixed with a wire.
There are a lot of similar devices, almost all of them are able to increase the speed of the 3G modem. Antenna Kharchenko is the simplest, but at the same time quite effective way to achieve this goal. In addition, it is very simple to build, without possessing special knowledge and skills, which means that this design is available to literally everyone.