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Numbers Stations (Encore)

2025/4/29
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Everything Everywhere Daily

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以丰富的内容和互动方式帮助学习者提高中文能力的播客主播。
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主播:我将介绍数字电台这一神秘的现象。它们是短波广播,播放看似随机的数字串,身份不明,没有人公开承认对其负责。从第一次世界大战期间使用摩尔斯电码传输数字开始,到冷战时期数量激增,并开始使用语音传输,数字电台一直存在。它们使用短波的原因是其信号可以传播很远的距离,通过反射地球电离层实现远距离传输。业余无线电爱好者追踪并命名了这些电台,例如“林肯郡猎户座”。关于数字电台的用途有很多理论,其中一个离奇的理论是苏联的末日装置。但实际上,它们是各国情报行动的一部分,用于向特工传递信息。数字电台使用一次性密码本进行加密,这是一种无法破解的加密系统,需要发送方和接收方拥有相同的密钥。使用短波广播传递信息,即使对手知道广播来源也无关紧要,重要的是保护特工的安全。短波广播的信号任何人都可以接收,这使得追踪变得困难。尽管数字电台运作方式公开,但没有情报机构公开承认运营过。捷克和瑞典的解密文件显示,冷战期间捷克斯洛伐克使用数字电台进行间谍活动;1998年美国破获的古巴间谍案中,间谍使用数字电台接收信息。冷战结束后,数字电台数量减少,但并未消失。数字电台相较于网络通信,在安全性方面具有优势,因为网络通信存在IP地址等可追踪的证据,而数字电台则难以追踪。

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Shownotes Transcript

If you ever stay up at night scanning through frequencies on shortwave radio, there is a good chance you might come across something very odd and kind of creepy. 

You will find a station that is nothing but a disembodied voice reading off a seemingly random string of numbers. There is often an identifying sound or song which is played on a regular basis before another recital of numbers. 

These stations have no call signs or other identifying information, and no one has ever publicly claimed responsibility for them. 

Learn more about numbers stations, what they are, and how they work on this episode of Everything Everywhere Daily.

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