This is usually recommended as there is no real point to distributing the signal all over the place. You can be able to use the 2 Omni-directional antennas for the point to point system. Omni-directional antenna serves as the main antenna to distribute signal to the other computers or devices. So, what is the major difference between the two? Omnidirectional Wi-Fi Antenna acts just like the normal light bulb. Apart from the difference regarding their performance from the various manufacturers, the antennas have been divided into two parameters, mainly omnidirectional and directional. It is essential to note that not all the Wi-Fi antennas have been made equal. The right antenna for the job usually depends on what the use you need it to perform. Wi-Fi antenna is devices which are used to extend the range of the Wi-Fi.