In previous articles we have explained as reduce the cost of wifi connections in Cuba using directional antennas and coaxial cable bicuad.
On this occasion les show how to convert cheap USB wifi adapters in powerful external antennas conectándolas to the PC via one USB extension Heche home with cable network (Ethernet) that, as we know, It is much cheaper than the coaxial (5 pesos national currency meter).
The first thing we have is the original USB extension to use their male and female ends. We could also use the USB ports females of any electronic equipment (Motherboard vieja, e.g.) This unusable for any reason. The male port it will be possible extension of the original or any USB device that has broken hand.
Once we have the female and male USB ports only have to weld in the same order the pair Ethernet cable as shown in Figure.
The USB ports use power pins at each end (right and left) and two data pins in the center. No matter the order of the colors of the cable network. What matters is having the same order as the female in the male as shown below.
In this way we can create a USB extension we can connect the USB wireless adapters cheap pc.
The USB specifications allow extensions up 5 meters in theory but in practice we tested extensions 6 meters smoothly. The pair Ethernet cables come from factory intertwined and this allows it to reach greater distances electromagnetic interference (EMI) is reduced.
Once we have the list extension we can connect via USB wifi adapter for pc. I can draw a window to the outside for better reception greatly. These adapters are not built for outdoor, so we must protect them through soda bottles or metal cans. Metal cans have the advantage of concentrating the signal in one direction.
This option is much cheaper than extensions antenna with coaxial cable and it does not bring the power lost wifi signal cable distance. Another advantage is that it gives us is easy to hide in the eyes of government informants neighbors.