摘要
本文提出如何使县级电视台能在方圆几十公里范围内把各乡镇自办电视节目内容、重大活动现场通过小微波回送,实现实况直播的传输系统。并重点对此种小型可携带灵活性较强的微波发射设备包括收发天线、高度以及直视距离的要求进行初步介绍。
In this paper the author presents how the county television station can be made to realize the transmission system of live broadcast for villages and towns within several kilometres which organize television progamms and their vital activity spots through small microwave teturn. The author also gives his preliminhary introduction to the small portable microwave transmitting equipment, including its receiving-transmitting antenna, height and the requirements for direct-view distance.
关键词
微波
电视台
天线
实况直播
micreowave
live broadcast
antenna selection
direct -view distance
image quality
