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Marine Science / Re: What are the maximum ultrasound levels to not to disturb fishes and sea mammals?
« on: 26/11/2016 15:55:21 »
I will be more happy using >200khz ultrasounds, as long as attenuation is only double, so better also and animals can not hear that. Also I would have more bandwidth to transmit. Perhaps if all sonars would work from that frequency and at a maximum levels by law the mammals would suffer nothing with that