ENR
时间：04-11
整理：3721RD
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What's meaning of "ENR" in nosie figure analyzer?I know it stands for "Exceed Nosie Ratio",But what does it mean?
ENR=(Th-T0)/T0.
Usually it is expressed in dB.
T0 = 290 K (standard noise temperature).
Th [K] is the equivalent noise temperature of the noise source.
The ENR (or Th) characterizes a noise source, particurarly the noise power at its output.
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