The DDD (Device Deterrent for Dolphins) is a device capable of keeping dolphins away from fishing nets, thanks to an efficient technology of interaction with their echo-location system (sonar).
The DDD is an electronic device with a 16-bit microprocessor which controls the emission circuit for the randomisation of the signals and the power section made up of the output transducer.
The level of DiD emissions does not cause any harm to mammals or fish, which are insensitive to the frequencies emitted.
It is powered by internal (sealed) rechargeable batteries and generates an acoustic signal in case of insufficient charge.
DDDs attach to fishing tackle and automatically activate upon contact with water. The position of the DDDs in the nets varies according to the type of fishing.