A WiFi scanner is capable of detecting up to 801.11b and 802.11g of access points ranging approximately 60 feet inside and 200 feet outside. As a scanner and detector, it actually performs multiple functions. Firstly, it functions as a tool to detect reliable networks. It has the ability to detect usable networks contained in a geographical area. In fact, its capabilities as a network detector are way better than other wireless adapters or antennas. It can sense networks in a further distance with enhanced signal strength. It is usually connected directly into a computer, meaning it could stay stationary to be used for detecting networks in home estate vicinity or used portably to locate networks in other areas.
Besides, the WiFi scanner is also useful when it comes to judging if a network is safe to be connected. It will detect the security risks within the network by displaying the extension of the network beyond their firewalls. It will notify users regarding the danger of a particular network and portray suspicious usage that may be performed by a bandwidth thief or network hacker. The scanner is also capable of showing the user if their networks are being hacked in any vicinity beyond their normal assortment. This could possibly occur if there is a third party applying the use of software or hardware to widen the range of the user’s network thus cracking its firewall to gain unpermitted access.
Aside from the above mentioned uses, the wireless network scanner can also be used to identify a geographical region where the user’s individual network extends to. It is sensible that the network’s signal strength may deteriorate with the increment in distance from the wireless router; it can be a viable tool to sense good locations of high signal strength for the respective networks or places with fair signal but low bandwidth.
The signal strength of a network is the availability of the signal in a specific location or the allocation of the network’s bandwidth. In further distances from the network’s router, the wireless network scanner will display lower signal strength thus users will endure slower internet connectivity. The scanner will alert computer users about the availability of the different networks by displaying them in an order of strongest signal to the weakest. It often provides labels to the networks, namely the open or secure. While an open network make no barriers for all users, the secured network implies that the network only allows access with a password. Any usage of program to hack into a secured network is absolutely illegal.
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