2014年12月1日
Channel Allocation
摘要： DescriptionWhen a radio station is broadcasting over a very large area, repeaters are used to retransmit the signal so that every receiver has a stron... 阅读全文
posted @ 2014-12-01 21:21 daydaycode 阅读(148) 评论(0) 推荐(0) 编辑