9/1/2023 0 Comments Wireless rssi values![]() ![]() ![]() Note This method has been removed from versions of impOS running on the impC001. It is an estimated measure of power level that an RF client device is receiving from an access point or router. If the WiFi is not active at all, or during an outage, the result will be zero. RSSI stands for Received Signal Strength Indicator. Remember, the value can change even if both the imp and the WiFi access point or router are not moved and remain at constant range. RSSI ranging model is the RF factor, whose value is usually the strength value of the wireless signal when the distance between the transmitting device. There are many more signal strength levels above -67 - values of up to -11 have been reported - but that’s not important: anything above -67 is good enough for everything the imp needs to do. To convert the value to ‘bars’ of signal strength as seen on phones, tablets and laptops, one mapping might be: RSSI RSSI - Received Signal Strength Indicator (usually 0-60 or 0-255) dBm - Decibels in relation to a milliwatt (usually -30 to -100) Reading dBm The first thing to understand about dBm is that were working in negatives. The figure returned is the raw value reported by the WiFi hardware. the closer to zero), the greater the signal strength. The current strength of the WiFi signal in dBm is negative, and the higher the number (ie. The recommended means of gaining the information this method returns is to call (). RSSI wideband power noise + serving cell power + interference power RSRP is the received power of 1 RE (3GPP definition) average of power levels received. However, removing it altogether would cause users’ existing code to stop working, so we currently have no plans to do so. ![]()
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