Why do I hear morse code at the far end of an AM radio receiver? Sounds like: ... ._. .._.?

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  • Dale-E
    Lv 7
    7 months ago

    If it is a continuous repetition of the same code, it is broadcast to maintain ownership of a frequency and prevent encroachment. The code is the station identification issued by FCC ( in the USA ) It is a legal requirement to prevent forfeiture.

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