The dB-Watt is an absolute value of RF power level compared to one Watt. dbW = 10log10 (Power in W) for calculation of system noise power density of VSAT. For example, 4 watts equals 6 dBW. (1 watt = 0 dBW, 10 watts = 10 dBW, 100 watts = 20 dBW and 1,000,000 W = 60 dBW)