PURPOSE: To automatically transmit burden collection completion data to a base station at the point of the time of completing all the burden collection operation by automatically sending burden collection completion data to the side of a host computer at the point of the time when no burden collection instruction data from the host computer is left.

CONSTITUTION: When a burden collection key 21e is operated, individual burden collection completion data is sent to the host computer 11 and data of which burden collection operation is completed dmong burden collection instruction data displayed on a display 21f is erased by one piece. Individual burden collection completion data is transmitted from a radio equipment 22 to the base station 10 by way of CPU 21 and an input/output circuit 21a. Then, transmitted data is received by the radio equipment 12 of the station 10 and processed by the computer 11 and the content of it is displayed on a display 13. he completion of the burden collection operation is judged from that one piece of burden collection data is erased and when burden collection instruction data remains, processings from the point of the time when the key 21e is pushed is repeated. On the other hand, at the time of completing all the burden collection operations, burden collection completion data is transmitted to the computer 11.