Figure 2.12. This is a graph. The horizontal axis is labeled Frequency in kilohertz and goes from 0 to 6. 3 kHz is exactly half way across the graph making it a linear scale. The vertical axis is labeled Attenuation ratio A sub R. it goes from zero to one and is also linear. The data curve begins at A sub R = 1 and frequency = zero. It goes horizontal for a very short distance, approximately 0.1 kHz then begins to fall. The points are, frequency, A sub R. 1, 0.7. 2, 0.42. 3,0.3. 4,0.25. 5,0.2. 6,0.15. End verbal description.
Go back.