100 



CALCULATION OF RADIO GAIN 



Figure 37. eh^ = eu versus sd = sp. Points eh,sd, lying to right of dotted line corresponding to eh, for a given trans- 

 mitter indicate that the points lie in the diffraction region of the transmitter, or d > rf^. Diffraction region dielectric earth 

 — curve parameter: 20 log A = 20 log /I — 20 log hi — 20 log gi. 



