96 



CALCULATION OF RADIO GAIN 



•;f (S) 



2 



1.5 



2 

 1.5 



30 50 70 100 



1x10-5 



10 



FREQUENCY IN 

 200 300 500 700 



MEGACYCLES 



1000 2000 3000 



5000 10,000 20,000 30,000 



0.3 0.1 



WAVELENGTH IN METERS 



.0 3 



.01 



TigureSI. sf(5) versus wavelength and frequency. For dielectric earth and k = 4/3, /(5) = l,ands ■= 4.43 X IQ-'^X-^'^. 

 <See Figure 57 for /(5).) 



