NUMBER OF TRANSMISSIONS PER MINUTE VS TIME OF DAY 





c/^ 





2.0 



1.5 



.0 



N = 



2 0.5 - 



GO 

 CO 



S 0.0 



g 2.0 



< 



^ 1.5 ^ 

 o 



1.0 - 



0.5 



N = 



0.0 

 2.0 



1.5 



1.0 -_ 



0.5 - 



0.0 



31 



89 



35 



90 



30 



78 



23 



4 



I 



52 



PERIOD 



1 19 PTT 839 



I 

 18 PTT 840 : 



309 PTT ALL 



ALL 



Figure 16. A comparison of the average number of transmissions per minute for eacii 6- 

 hour summary period for PTTs #833, #839, #840 and all PTTs combined. Error bars 

 indicate one standard deviation. 



34 



