The graph is rectangular with two dashed vertical lines and 5 dashed horizontal lines inside the rectangle. Each vertical line is close to the edge of the graph. The left hand one is labeled 400 kc and the right hand one is labeled 500 kc. The horizontal lines are not labeled. They are equally spaced. The top line of the rectangle is 0 dB, the first dashed line down is minus 10 dB, the next one minus 20 dB, until the bottom line of the rectangle is minus 60 dB. The first curve enters the graph on the left at about minus 51 dB and 378 kc. It crosses the 400 kc line at about minus 45 dB. It rises slowly at first getting steeper as it approaches the center. It crosses the minus 10 dB line at about 446 kc and rises to a peak at minus 6 dB at about 448 kc. It then turns down reaching a minimum at about minus 10 dB and 455 kc. It turns upwards again reaching another peak at minus 6 dB and about 461 kc. It again turns downwards passing through minus 10 dB at about 464 kc. It then falls steeply making a mirror image of the part on the left. It grows less steep as the frequency increases. It passes through minus 42 dB at 500 kc and exits the graph at about minus 51 dB and 531 kc. The second curve enters the graph from the bottom at minus 60 dB and 382 kc. It passes through the 400 kc line at minus 55 dB. It's slope grows more steep and passes through the minus 10 dB line at 451 kc. It reaches a single peak at 455 kc and minus 6 dB. It drops off steeply to minus 10 dB at 458 kc. The slope grows more shallow and passes through the minus 50 dB line at 497 kc. It exits the bottom of the graph at minus 60 dB at 527 kc. The third curve enters the graph at minus 60 dB at 415 kc. It rises steeply passing the point minus 20 dB and 451.5 kc. It reaches a peak at minus 12 dB and 455 kc. It falls to minus 20 dB at 458.3 kc. It falls to minus 50 dB at 477 kc and exits the graph at minus 60 dB at 495 kc. End verbal description.
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