Title : 
Transmission rating of telephone systems
         
        
        
            Author_Institution : 
Stromberg-Carlson Company, Rochester, N. Y.
         
        
        
        
        
        
        
            Abstract : 
The problem of rating the transmission performance of telephone connections is considered, including a review in considerable detail of a method proposed by J. R. Hughes.1 With this background, a modification of Hughes´ technique is presented with indications of certain attendant advantages.
         
        
            Keywords : 
Attenuation; IEEE transactions; Lightning; Noise; Standards; Substations; Testing;
         
        
        
            Journal_Title : 
Electrical Engineering
         
        
        
        
        
            DOI : 
10.1109/EE.1946.6439903