General > General Technical Chat

Bizarre TV Behavior

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themadhippy:

--- Quote --- My dad had a better remote, he commanded loud and clear, "Paul, go change it to Channel 4."
--- End quote ---
funny enough my dad had a similar model that could also adjust the volume or hit the telly on the left hand side  to sort the picture.

RJSV:
   The 'click' you hear, when pushing button on ultrasonic controls is a tiny hammer dealy, that hits a metal bar, that is mounted in compliant attachments, and that will emit a decent amount of ultrasonic audio power.
Metal bar resonates somewhere in the band the audio microphone receiver circuit accepts...
(I might guess, 16 khz audio ?)

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