вт, 30 апр. 2024 г., 12:01 Mat via Cin <[email protected]>:

> The radio signals which are interfering could be shortwave.
>
> I would recommend using ferrite clamps on the cables which do not carry
> digital signals, especially those in the most sensitive area, like
> from the hydrophone and pre-amp. Also the pre-amp power cable, if it is
> not battery powered.


*I think* preamp in this case is battery-powered.

By ferrite rings you mean like those?

https://www.ebay.com/itm/403346040770


And screen the pre-amp, if it is not in a metal
> box. The pre-amp itself ought to have provisions for preventing this,
> like a low-pass filter at the input.
>
> MatN
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