Yagi antenna can be used as a reinforcement signal from the modem usb / wifi.This picture scheme yagi antenna for the modem / wifi...
Additional Power Supply For USB
we get the problem on a PC or laptop in reading the USB device.
problem that often arises is unable to read the usb device. This is caused by a lack of supply voltage. to solve this problem let's try to make additional power supply.
see scheme below :
list the components needed :
Electrolit Condensator 47Uf/25VElectrolit Condensator 47Uf/16VIC AN 7805 with heatsink
Additional Power Supply USB can be used for extension cable USB...