| 摘要 |
PROBLEM TO BE SOLVED: To easily and efficiently perform installation work or re-adjustment work of an antenna. SOLUTION: A tuner unit 12 selects a desired channel from a received broadcast signal and outputs a received signal RS. A digital demodulation unit 13 performs demodulation processing on the received signal RS and outputs a transport stream TSr. An error-correcting processing unit 14 performs error correction on the stream TSr, and a packet of image or audio of a desired program is extracted by a demultiplexer 15 and decoded by a decoder unit 21. The digital demodulation unit 13 or the error-correcting processing unit 14 supplies an antenna level to a control unit 50. The control unit 50 sequentially iteratively switches the channel to be selected by the tuner unit 12 and acquires the antenna level for each channel. Furthermore, an on-screen display processing unit 32 is controlled to display a list of antenna levels of channels on a screen of a display unit 60. COPYRIGHT: (C)2009,JPO&INPIT
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