HANNA : 



DESIGN OF TRANSMISSION LOSS EXPERIMENTS 



-10 - 



S -20- 



3 

 K 

 I- 

 U 



u 



a 



-40- 



-90, 



200 

 FREQUENCY IN Hz 



400 



Figure 4 . MEASURED SPECTRUM OF IMPULSE RE- 

 SPONSE FOR CONVERGENCE ZONE AT 

 300 NM 



517 



