It means there's more than 1 antenna on the both WiFi devices. Which can dramatically improve speed.Īs example, a single antenna 2.4 GHz b/g/n could deliver maximum speed of 150 Mbps, theoretically. While with 4 antennas, it could theoretically reach 600 Mbps. This type of multiple antenna setup is called MIMO. Always expect about half of the maximum advertised speed. No matter how costly the WiFi hardware is. Range and coverage of any WiFi network depends on many factors like WiFi band, output power, receiver sensitivity, antenna gain and type of antenna.Īlso depends on channel bandwidth and modulation technique.Īs example if the WiFi is operating on 802.11b mode, it provides better coverage compared 802.11n, however maximum speed is less.Ģ.4 GHz WiFi has better range compared to a 5 GHz WiFi network. At least 50% more.Īs the WiFi transmit power is very limited, antennas play a huge role in range. General rule of thumb is bigger the antenna, better the coverage. There's many type of antenna with different purpose. #Realtek rtl8811au wireless lan 802.11ac usb 2.0 slow driver#.#Realtek rtl8811au wireless lan 802.11ac usb 2.0 slow update#.
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