What is Signal Strength?

“Signal strength,” also referred to as “coverage,” is the most basic requirement for a wireless network. To put it simply, signal strength is defined in dBM (decibel milliwatts) to determine the strength of a wireless network. As a general guideline, low signal strength means unreliable connections and low data throughput. While it is confusing, wireless signal strength is denoted in negative values, meaning that the signal is stronger with lower numbers.