STATISTICAL ENERGY-FREQUENCY SPECTRUM 381 



originate, they would vary widely in this respect after arriving at a 

 common receiver. The writer is therefore of the opinion that the 

 quotation from his previous paper appearing at the start of this article, 

 represents all that can safely be said regarding the spectrum of static 

 and that our present knowledge is insufficient to justify the application 

 of probability analysis to the problem. All that we can say is that 

 the part of R{o)) which contributes to "static interference" is simply 



V \ ^ 



Lim -'-^jY. am^|/m0'w)|2, 

 jV-^^ tt iV 1 



a result deducible from (6) and in agreement with the conclusion of 

 my original paper (I.e.) . It is here supposed that the times of incidence 

 are distributed at random. This formula, however, supplies no useful 

 information in the absence of data regarding the wave forms and 

 amplitudes of the individual disturbances. 



