dBuV is commonly used to specify receiver sensitivity.

• 0.5 µV is equivalent to – 113 dBm
• 1.0 µV is equivalent to – 107 dBm
• 10 µV is equivalent to – 87 dBm

To convert from dBm simply subtract 107 from the dBm value. (See Note-2)

Note:

1. dBm for receiver sensitivity is based on a voltage level in µV, not a power level in Watts. Mathematically, this is taken into account and does make a difference to the decibel calculations.
2. The simple conversion from dBuV to dBm only applies for antenna systems with a impedance of 50 Ohm !

Portions of this text are provided by Brian Henderson and can also be found in his Program Operating Guide.

Calculate from and to other units ? Use the 'On-line RF calculator'.