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by Madrigal 1887 days ago
You're probably thinking of LG Smart Diagnosis https://www.lg.com/us/support/help-library/smart-diagnosis-f...

Video on how it looks like https://youtu.be/Q_fTfGJFK2A?t=68
1 comments
tdeck 1887 days ago
Wow it sounds like RTTY (radioteletype):

https://m.youtube.com/watch?v=wzkAeopX7P0

I suppose there are only so many ways to modulate a data signal.

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nereye 1887 days ago
There are a few hundreds listed at https://www.sigidwiki.com/wiki/Signal_Identification_Guide.
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