Therefore, a signal of -40 is more powerful than a signal of -80.Ī higher negative value (in dBm) indicates a weak signal. This dBm is express as a negative number from 0 to -100. The most reliable method of representing signal strength is with a quantity known as a dBm.

Wi-Fi Signal strength -50dBM to 65dBm is likely good enough to handle traffic such as video stream, voice/video calls, Browsing etc. dBm (decibel-milliwatts) a standard unit of measurement to use measuring wi-fi signal strength or power.ĭBm is considered as an absolute number that potentially use to calculates the scale of signal strength to represent the voltage and power that receiving a device and represent number from 0 to -100. So, the question around is what value can take for dbm over the wireless network that run critical applications smoothly.ĭBm (Decibel Milliwatts) probably you heard this term around and of Course electronics and telecom engineer do play with this term every day. As a wireless network analyst, signal strength measurement is a bit fair complexity while designing a wireless network.

Wifi signal strength