APPENDIX C 83 



Figure C-39. Percent of time trapping frequency < 1000 Mc/s: November. 



180 150 120 



30 60 90 120 150 180 



60- 



60 



70 



A. 



70' 



180 150 120 90 60 30 



180 



FIGURE C-40. Percent of time trapping frequency < 300 Mc/s: November. 



