PURPOSE: To obtain surer reception data even when an error is included in the received data by taking correlation between data stored in a storage means and data decoded by a decoding means in advance and outputting data stored in a storage means in the order of higher correlation and displaying the data.

CONSTITUTION: A data buffer 104 stores tentatively decode data outputted from a decoder 103. A correlation device 105 takes correlation between the decode data tentatively stored in the data buffer 104 and data present in a data memory 106 and outputs data in higher correlation order and stored tentatively in a buffer 107. A switch 108 is a switch set by the user and closed when data are received at a location where reception state is not excellent. Furthermore, a switch circuit 109 is used to select and lead data from the buffer 107 when the switch 108 is closed or data from the data buffer 104 when the switch 108 is open to a display device 110 respectively.