• | Sound Speed This is the sound speed calculated by the ME70.
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• | Absorption The absorption curve is drawn based on the calculations made by the ME70.
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• | Noise Estimate This value reflects an estimation of the noise level over the transducer bandwidth. For every transmission ("ping") the ME70 measures the echo levels along the chosen range. Typically, these measurements are made every five meters, even for long ranges.
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• | Equivalent ambient noise The noise estimate provided by the ME70 includes all noises. This includes noise generated by your own vessel, for example electric noise, propellers, machinery and mechanical vibrations. By means of additional equations, the noise values are compensated for the bandwidth. The equivalent ambient noise value attempts to present the total noise as if it was all from ambient sources.
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