Title : 
The measurement of the phase velocity of ground-wave propagation at low frequencies over a land path
         
        
            Author : 
Pressey, B.G. ; Ashwell, G.E. ; Fowler, C.S.
         
        
        
        
        
            fDate : 
3/1/1953 12:00:00 AM
         
        
        
        
            Keywords : 
phase measurement; radiowave propagation;
         
        
        
            Journal_Title : 
Electrical Engineers, Journal of the Institution of
         
        
        
        
            DOI : 
10.1049/jiee-2.1953.0080