Eli5: Are satellites really ‘beeping’ and why?
In: Engineering
This idea comes from our first satellites in space. Sputnik transmitted morse code for “hi” 4 dots and then 2 dots. “…. ..” Unfortunately our recordings aren’t very clear so it just sounds like a beep. As more satellites were launched they begin to study different aspects of space. They transmitted their data in analog as a series of beeps and tones. [https://youtu.be/MjVorX1YVng](https://youtu.be/MjVorX1YVng)
Some modern satellites transmit analog data and series of beeps and tones. NOAA weather satellites can be received by a basic radio scanner and using free software you can receive pictures from the satellites as it passes overhead.
[https://youtu.be/h4Y0EUHFaXg?t=360](https://youtu.be/h4Y0EUHFaXg?t=360)
[https://youtu.be/PWWGDL5tC_I](https://youtu.be/PWWGDL5tC_I)
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