Ubiquiti Air Max 20dBi 5GHz Sector Antenna

Signal quality in dBm

A wireless signal is measured in decibels (dB) with a negative sign, so the closer the sign is to zero, the better the signal quality.

0dBm to - (-50dBm): High quality signal (to get this result, the antenna needs to be tuned to the transmitting power)

(-50dBm) to - (-60dBm): Good quality signal

(-60dBm) to - (-70dBm): Average quality signal

(-70dBm) and above: Low quality signal