Labels:book | bulletin board | lodestone | monitor | poster | reckoner | sky OCR: and cos L1 cos WI sin [1-K] cos LT cos W2 sin ($K) arc cos (19) cos LK sin The control point locations are determined in accordance with conven tional MUF estimation proced ures. Thus if the range from transmitter to receiver is less than 4000 km the control point is at mid ipath (K =1/2). If D 4000 km two control points are considered, respectively located 2000 km in from either terminus. in this latter case the proced lure we adopt is to compute MUF for each of two fictitious single -hop paths of length D/2 whose midpaths lie af the control points just defined. The MUF for the actual total path is then taken as the lesser of the two single -hop MUFs. Thus for any the problem red luces to the estimation of MUFs for a single- -hop path. M FACTOR Again following conventional proced ure, the ...