The Superheterodyne Radio: No really, that's its name
推荐理由
This video is a great explainer (and I also highly recommend every other video on the channel)
说明
这是2018年由Technology Connections发布的一部讲解,主题归在Electronics & circuit design。它讲的是radio receivers这一支里的具体问题,而不是把整个领域扫一遍。适合第一次接触、还没有先修课的人。内容上可以概括成:Technology Connections explains why the superheterodyne radio has its name and how mixing frequencies lets it tune stations well. It walks through the underlying wave phenomena and algebra and why the design solved a hard tuning problem.这些读者给出的理由,核心是:HN people use it as the accessible go-to explainer for the superhet trick whenever radios or signal processing come up.讲法不绑某一条新闻,过几年仍然可以当材料看。从2019年到2024年,有3位不同的读者在3个不同月份把它推荐出来,其中明确叫别人去看的有1次。适合用一集把一个概念补上的人。抓住它用的那个图像或类比,比背公式重要。如果已经会了基本定义,就把注意力放在它怎么把radio receivers变成能跟着复述的例子。
视频信息
- 频道
- Technology Connections
- 时长
- 12 分 31 秒
- 发布年份
- 2018
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