Details less than 3dB can't be employed since it establishes the most profiling array of the devices. It may be viewed that SNR is near to 0 dB further than 10m-12m depth. All over again, in the course of slack drinking water, the Lower off line for 3dB extends outside https://griffinzgevi.bluxeblog.com/64326070/5-simple-techniques-for-hydrographic-survey