% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 4 3 -4 -1 2 3 0 -3 2 -3 -4 2 4 2 1 3 1 4 -1 -3 -3 1 2 -4 2 4 -4 2 -3 -2 4 4 2 -3 3 -1 2 -3 4 5 5 4 4 2 -1 -2 2 1 2 4 -4 -3 4 2 2 3 3 2 -1 -2 1 -2 3 -4 1 -2 2 0 0 3 -4 1 2 -1 -2 2 -3 2 1 -3 5 2 4 -1 3 4 -2 -1 -2 0 -3 -3 5 -3 -2 2 -2 1 -3 -2 -3 -3 5 2 1 3 2 -3 1 -3 7 -2 -1 -2 -1 1 4 2 -1 3 -3 -3 1 2 -1 -2 3 -4