amateur station call letter

例句：

1. 1.The amateur radio operator received a distress signal from the other side of the ocean.
   业余无线电操作员从海洋的另一侧收到了求救信号。
2. 2. The amateur radio enthusiasts gather every Saturday to share their knowledge and experiences.
   业余无线电爱好者每周六聚集在一起分享他们的知识和经验。
3. 3. The amateur radio station was broadcasting live from the location, providing updates on the search for the missing child.
   业余无线电台正在现场直播，提供有关失踪儿童搜寻的最新信息。