To provide a base station and a drive-through system using the base station, which eliminate processing time limit for an input signal processing unit and can process echo sounds.

A base station 140 is equipped with a signal processing unit 141 for processing inputted signals, a base reception unit 142 for receiving signals from an order taker station 13, and a base transmission unit 143 for transmitting signals processed by the signal processing unit 141 to the order taker station 130. The signal processing unit 141 is equipped with an input signal processing unit 141a for processing car engine sound, surrounding noise and customer's voice, and a memory 141b comprising a storage unit for storing temporarily signals from the base reception unit 142.