I'm using my Analog Discovery 2 to try to capture analog echo data from a marine depth sounder using the fly-wire connectors. The problem is that the USB connection from the AD2 to the PC dies after a few seconds or tens of seconds when the sounder is on.
I suspect it is noise from the sounder, which drives a piezo transducer at 192 kHz and 36 W RMS, which would imply significant voltage. I noticed that the fly-wires work well to pick up the transmit pulse when disconnected (but a few inches away).
Edit: The problem remains when I replace the fly-wires with a single coax cable (albeit with poorly terminated connections).
Do you have any suggestions on how to keep the USB connection up?
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AlexanderGDean
I'm using my Analog Discovery 2 to try to capture analog echo data from a marine depth sounder using the fly-wire connectors. The problem is that the USB connection from the AD2 to the PC dies after a few seconds or tens of seconds when the sounder is on.
I suspect it is noise from the sounder, which drives a piezo transducer at 192 kHz and 36 W RMS, which would imply significant voltage. I noticed that the fly-wires work well to pick up the transmit pulse when disconnected (but a few inches away).
Edit: The problem remains when I replace the fly-wires with a single coax cable (albeit with poorly terminated connections).
Do you have any suggestions on how to keep the USB connection up?
Thanks,
Alex
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