290 



ATTENUATION OF RADIO WAVES 



20* 140' 160'iASI I80'*ESI leC HO* 120' W eo* 60' «• WKSI 0*E«SI JIf w 



100' OT IW lSO'f«ST IJO'IESI ISO- HO- l!0' 100' IC »• 40* !<ri£ST 0*E»ST 20' 40* 



Figure 7.16. Average absolute humidity {g/m}), August. 



Figure 7.17. August values of 300-mi propagation path absorption loss {in dB) to be 

 exceeded 1 percent of the time for a frequency of 10,000 Mc/s. 



