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I'm looking for a schematic for building a data logger or any information regarding a data logger that can be integrated via the headphone jack of the Gold Mask Pro 7. I would be grateful for any help, thank you.
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Take a look at the data logger published in the August & September, 1999 issues of Everyday Practical Electronics. See WorldRadioHistory.com for back issues. -
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Is the Gold Mask Pro 7 a PI detector?
Some insinuate that it is an improved version of the Pulse Star 2 detector, I cannot say that, I have never had the opportunity to see that detector or test it.
In 2021 I made some similar logger for Delta Pulse type PI detectors, Pulse Star 2 and similar PI detectors that have VCO type audio output.
My idea was to monitor the frequency of the audio output.
I measured the frequency and transitions in this case with the processor.
The logger part is less important, it can be done in many ways. It is much more important that you define for yourself what you want to log from such an audio output.
How to extract a useful part of information from such an audio output?
In the mentioned cases, I made a very simple solution that gave solid results:
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