SNR is the difference between the signal strength and the background noise level. $$SNR (dB) = Signal (dBm) - Noise (dBm)$$ A high roaming sensitivity might look for an SNR of 25dB or higher, while a low sensitivity might accept an SNR of 15dB.
The sensitivity level sets the for this decision: what is roaming sensitivity level
In enterprise wireless drivers (such as Intel PROSet or macOS Wi-Fi settings) and consumer devices (Android/iOS), roaming sensitivity is often categorized into qualitative levels. SNR is the difference between the signal strength
In plain English, this setting controls . this setting controls .
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