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76.24 -- AM radio waves
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![Massimo on Twitter: "Difference between AM and FM radio in how it sends its radio signal [read more: https://t.co/QDqDO3qdXx] https://t.co/fMSX7ncui7" / Twitter](https://pbs.twimg.com/tweet_video_thumb/FiaIwiTXEAAkUJo.jpg:large "Massimo on Twitter: \"Difference between AM and FM radio in how it sends its radio signal [read more: https://t.co/QDqDO3qdXx] https://t.co/fMSX7ncui7\" / Twitter")