| 摘要 |
PURPOSE: A receiving digital radio board of a base station is provided to install digital elements capable of processing a 3FA multi-carrier signal in a receiving end of the base station or processing a 1FA 3 sector signal, thereby improving reliability on the base station. CONSTITUTION: An analog/digital converter(500) converts an inputted IF signal into a digital signal. A traffic path selector(510) changes a path according to a structure of a demanded system for a signal outputted from the analog/digital converter(500). A digital radio processing part(520) converts a signal outputted from the traffic path selector(510) into a digital radio signal. A data format converter(530) inputs a signal outputted from the digital radio processing part(520) and a system clock signal, and outputs a data format signal with a channel card.
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