INRANG: Activates the ARTS feature; a high tone beep will sound when the transceiver first detects that you are within range, and a low beep will sound when the other station goes out of range.

• 在可通联范围内：自动可通联提示功能被激活；当本机首次进入可通联范围内是以一声高音蜂鸣音提示，当其他电台脱离可通联范围时本机发出一声低音蜂鸣音提示。