On 03/03/2013 10:00 AM, Poul-Henning Kamp wrote:
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In message<657D7F7CC03849419A2A90752E6A60A6@pc52>, "Tom Van Baak" writes:
When playing with watches a while ago I tried to pick up any 32
kHz signal but failed. Those with 1 Hz stepper motors were easy,
but LED or LCD displays were too electro/magnetic/acoustic quiet
for me to ever detect anything.
Most LCD and LED clocks have a shielding metal-coating on the front
glass, exactly to eliminate all EMI/EMC issues.
Darn. I should have guessed.
Cheers,
Magnus
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