For this useful signal jammer, your wi-fi card requires a work package on the network to be injected. You need to learn the wifi card chipset, the dmesg command in Linux usually displays this information, or if you use a wireless dongle, run lsusb. Based on the information obtained, you can run Aircrack or any other WPA Crack utility on the card to search the Internet. If the wireless chipset can run a WPA cracking tool, it can inject packets into a real-time network and it can be used with signal jamming equipment.