| 摘要 |
One example discloses a communications system, having: a communications unit, including circuits for processing data signal frequencies; a geographic location unit having a first location signal input, triggered at a first geographic location, and a second location signal input, triggered at a second geographic location; a geographic frequency database including: a first subset of data signal frequencies which can be validated by the communications unit at the first location; and a second subset of data signal frequencies which can be validated by the communications unit at the second location; a frequency scan control unit electrically coupled to the communications unit, the geographic location unit and the geographic frequency database; and wherein the scan control unit configures the communications unit to process the first subset of communication frequencies in response to the first location trigger and to process the second subset of communication frequencies in response to the second location trigger. |
