![]() For instance, if the RSSI value is zero or close to zero, it means the Wi-Fi is weak, and if the value is greater, for example, 60, it means the signal is strong enough to be reliable. Notably, RSSI values can still show if a signal is strong or weak. That is because RSSI values are not standardized and can vary depending on the device manufacturer. Therefore, using RSSI values to determine Wi-Fi signal strength can be unreliable, especially when one wants to know the exact value of the signal strength. However, device manufacturers can determine their maximum values if their top value does not exceed 255. The IEEE 802.11 standard specifies that the RSSI scale runs from 0 to 255. ![]() The IEEE 802.11 wireless standards use RSSI values to show the Wi-Fi signal strength.Īlthough, it is not as direct. RSSI is a measure of the power of a received Wi-Fi signal. Therefore, Wi-Fi strength can vary based on factors such as the distance between your device and the router. It is important to note that Wi-Fi strength is measured by the device receiving the signal and not by the access point or router. Wi-Fi signal strength is recorded in Decibel-Milliwatts dBm or Received Signal Strength Indicator (RSSI) units. However, Wi-Fi signal strength does directly affect Wi-Fi speed. We will focus on Wi-Fi signal strength, not Wi-Fi speed, as the two are easily confused. Wi-Fi signal strength will significantly affect the rate at which your iPhone transfers data through downloading or uploading. ![]() The signals you receive on your phone translate to the data you use. Wi-Fi signals travel as radio waves from the router to your devices within a Wi-Fi network.
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