SOONTAI  TECH  CO.,  LTD. Technical Center  
 
Unit  Conversion

 

  Impedance Value Unit  
  50ohm  75ohm   
 
            dBm ( PWR )
      mW ( PWR )
      dBmV ( VOL )
      dBuV ( VOL )
      mV ( VOL )		  
   
  
   
Input value and select impedance (ohm), unit of parameter then
click the "convert" button.

 

  
  Note: 50ohm 0 dBm
 
= 1 mW
= 47 dBmV
= 107.0 dBuV
= 223.61 mV(rms)
 		 Note: 75ohm 0 dBm
 
= 1 mW
= 48.8 dBmV
= 108.8 dBuV
= 273.86 mV(rms)
 		  
 
 
  mW = 10^(value dBm/10)
dBm = 10log(value mW/1mW)
dBmV = 47+(value dBm)__50ohm  or  dBmV =48.8+(value dBm)__75ohm
dBuV = dBmV+60
mV(rms) = (SQRT(value mW * R/1000))*1000
 
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