Conversion gain or attenuation in power to decibel dB (dBW).

It converts a power difference in equivalent gain or attenuation dB.

Data input

Initial power . . . . IN

W

Final power . . . OUT

W

Notes.
You can use any measure unit of power but it must be the same for the two inserted numbers.

Some reference levels :

• 0 dBµV = 1 µV su 75 ohm
• 0 dBmV = 1 mV su 75 ohm
• 0 dBm, dBmW = 1 mW
• 0 dBW = 1 W

Others :

• 0 dBj = 1 mV
• 0 dBk = 1 kW
• 0 dBs = 1 mW
• 0 VU = 1 mW