| 摘要 |
The invention proposes a TV radio information system connecte with a video-information-collecting system. The system comprises a central station, transmitting- receiving trunk, a transmitter, a duplexer, an antenna, a receiving trunk, a divider, a demodulator, a computer, a video-information-collecting system, a reducing transformer, a modem, a digital platform, an adder, a post for collecting video-information, points for collecting video-information |
