noun
signal strength; signal intensity
Technical term used in contexts such as radio, Wi-Fi, and mobile networks to indicate the power level of a received signal.
このエリアは信号強度が弱いので、通話が途切れやすい。
The signal strength is weak in this area, so calls tend to drop.
ルーターの近くに移動すると、信号強度が改善した。
Moving closer to the router improved the signal strength.
Compound of 信号 (signal) and 強度 (intensity, strength). A straightforward technical term with no obscure historical derivation.