Pekeris waveguide. Trunc. Tap N T I J 20 0 3 0 0 0 0 0 0 0 0 1500 0 0 0 1 0 100 1800 0 0 0 1.8 0 36 36 36 1 1 1400 1E8 1024 1 980 0 15 20 5 20 80 12 10 0 100 12 20 40 70 6