| 摘要 |
PURPOSE:To reduce the cost of the broadcast system and to facilitate the installation the broadcast system. CONSTITUTION:A broadcast base station 1 is constituted by connecting a broadcast instrument 2 and a personal radio equipment 3 provided with a omnidirectional antenna, and the antenna is installed at a high place as much as possible so that an unobstracted view can be obtained. Broadcast repeater stations 4-1-4-4 are constituted by connecting personal radio equipment 5-1-5-4 respective provided with directivity antennas and medium/short wave radio equipment 6-1-6-4 provided with omnidirectional antennas. The broadcasts transmitted from the omnidirectional antennas of the medium/short wave radio equipment 6-1-6-4 are respectively received by receivers 11-18. |
