Labels:book | bulletin board | earth | skep OCR: (db above 003 005 007 0.02 003 0.05 0.07 Frequency Mc/s) Frequency (Mc/s FIGURE J FIGURE Variation of radio noise with 1. frequency Data on noise variability 1600 and h. character 'Winter; 1200 1600 (Winter, 1200 Expected values of of man-made atmospheric noise at a Fam Standard deviation of values of Fam value, Fam Expected values noise quiet D, Ratio of upper decile to median receiving location Standard deviation of values decile Expected values of galactic noise Ratio of median value, Fam lover Stantard deviation of value Expected value of median deviation of average voltage The values shown are for band lwidth of 200 c/s. bandwidth
