Yet another alignment,
The receiver is drifting quite a bit, so the 'window' has been widened to 550 Hz, at least some signals are visible.
Further improvements to the grabber will happen later.
Spark Gaps and Coherers demonstrated and Measured by CuriousMarc
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*CuriousMarc provides a good demonstration of how spark transmitters work
with coherer detectors. His measurements are really illuminating. His
device j...
1 hour ago
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