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1:31 PM
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Q: Acoustic Communication issues

Gaurang SolankiI am working on Acoustic underwater communication system at 60 kHz. I am using Op-Amp on transmitter side which amplifies signal to -10v to +10v. I observed a weird thing about this system that it only works when it is grounded to my home's common ground. For example if I supply power through sep...

If you think that this is a good fit here, then I'll migrate it.
 
Amateur Radio ("Hams") are pretty smart, give them a chance to answer. :)
 
2:22 PM
What's the point of the ac coupling & dc blocking C1 cap if the input is AC anyway? i.imgur.com/OR5YLAM.jpg
 
@rdtsc It's off-topic
 
2:43 PM
It's a multi-disciplinary endeavor... dunno where it would fit best.
 

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