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80 dBm: 100 kW: Typical transmission power of FM radio station with 50-kilometre (31 mi) range 62 dBm: 1.588 kW: 1.5 kW is the maximum legal power output of a US ham radio station. [12] 60 dBm: 1 kW = 1,000 W: Typical combined radiated RF power of microwave oven elements 55 dBm ~300 W: Typical single-channel RF output power of a K u band ...
For reference, about 10,000 100-watt lightbulbs or 5,000 computer systems would be needed to draw 1 MW. Also, 1 MW is approximately 1360 horsepower . Modern high-power diesel-electric locomotives typically have a peak power of 3–5 MW, while a typical modern nuclear power plant produces on the order of 500–2000 MW peak output.
A power level of 0 dBm corresponds to one milliwatt, and 1 dBm is one decibel greater (about 1.259 mW). In professional audio specifications, a popular unit is the dBu. This is relative to the root mean square voltage which delivers 1 mW (0 dBm) into a 600-ohm resistor, or √ 1 mW × 600 Ω ≈ 0.775 V RMS.
Representation of the peak envelope power (PEP) using the example of an AM-modulated signal. The PEP is the power area shown in red. Peak envelope power (PEP) is the average power over a single radio frequency cycle at the crest of the modulation.
The decibel watt (dBW or dB W) is a unit for the measurement of the strength of a signal expressed in decibels relative to one watt.It is used because of its capability to express both very large and very small values of power in a short range of number; e.g., 1 milliwatt = −30 dBW, 1 watt = 0 dBW, 10 watts = 10 dBW, 100 watts = 20 dBW, and 1,000,000 W = 60 dBW.
The conversion level is chosen as the best compromise for the typical headroom and signal-to-noise levels of the equipment in question. Examples: [ 32 ] [ 33 ] [ 34 ] EBU R68 is used in most European countries, specifying +18 dBu at 0 dBFS.