.6 .8 I 2 4 6 8 10 20 

 RANGE IN THOUSANDS OF YARDS 



Figure 34. — Reflected power expressed in decibels above minimum discernible signal 

 plotted as a function of range for the low lying iceberg (33 by 247 feet; 

 5,360 sq. feet). The fade areas were well documented on this target whcu.e 

 maximum range of detection was 19,600 yards. Subnormal propagation 

 conditions existed; c.f. figures 35 and 36. The sea was calm. 



77 



