Reference noise

In telecommunication, reference noise is the magnitude of circuit noise chosen as a reference for measurement.

Many different levels with a number of different weightings are in current use, and care must be taken to ensure that the proper parameters are stated.

Specific ones include: dBa, dBa(F1A), dBa(HA1), dBa0, dBm, dBm(psoph), dBm0, dBrn, dBrnC, dBrnC0, dBrn(f₁-f₂), dBrn(144-line), dBx.

References

This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C" (in support of MIL-STD-188).

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