手機訊號是指手機從蜂巢式網絡中接收到的訊號。手機訊號的強弱取決於多方面因素，例如當靠近行動通訊基地臺時訊號強、但呆在某些建築物或者地下室時訊號弱。大多數流動裝置通過高度逐漸遞增的柱狀條形圖向用戶顯示手機訊號的大致強度，一般條形圖上有5個柱狀。[1]
參考文獻
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