The antenna must always be adjusted to the frequency band used.Ī directional antenna focuses the signal and amplifies it into direction. By default, most networks are 2.4GHz frequency bands, and for special networks, 5GHz can be used. Basically, there are three different types of WiFi antennas: directional antennas, omnidirectional antennas, and sector antennas. However, the cable should not be too long, because it reduces the signal strength again. High-quality antennas can be connected to the router via a cable and thus positioned precisely. Most routers are factory-equipped with an antenna and can then be upgraded with higher-quality WiFi antennas to improve range or signal strength or to align accurately. Whenever you want to increase the range of the WiFi network or amplify the signal in a certain direction, you can use a WiFi antenna. Although an optimal point of view of the router can increase signal strength and transmission security, bridging larger areas often can not avoid using external resources. Metallic objects redirect the signal, so that it may not arrive at all or only greatly attenuated at the device. The radio signal is mainly disturbed by obstacles such as furniture and walls and thus reduced. Especially in confined spaces, there are many confounding factors that can severely limit the range of about 100 meters that standard routers promise. However, in order to build and maintain a stable WiFi connection, several factors must be considered. The connection of various devices via WiFi has become standard, hardly anyone wants to deal with annoying cable mess.