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Choose dBu - mV/m Conversion:  
     
Pull down choice  
70 dBu is FM City Grade, 60 dBu is Protected for most and 57 dBu & 54 dBu for others    
     
 
     
     
 
     
Note: mV/m is mili-Volts per meter  
From RF Specialties who is not responsible for errors of any kind