Mixed-path ground-wave propagation: 2. Larger distances

The theoretical rcs ults given in p a r t 1 (NBS R esearch P a pcr 2687) fo], g ro und wave propagation over a mix cd pat h on a fl at earth ar e ge nerali zed to a spheri cal earth .Th e problem is formul ated in ter ms of t he mu t ua l impeda nce betwee n t wo ve rt ical dipoles whi ch are locatcd on eit her s ide of t he boundary of se parat ion .Exten sive llumerical r es ul ts ar c given in gra ph ica l form for a mi xed la nd-sea path at fr equ e ncies of 10, 20, 50, 100, a nd 200 kilocycles per scco nd .