This converter calculates the Noise Figure (NF) in decibels from a given Noise Temperature (TNoise) in Kelvin. It helps evaluate how much additional noise an electronic device introduces compared to an ideal noiseless system.
Formula
NF(dB) = 10 * log10( (TNoise / TREF) + 1 )
Formula Explanation
- TNoise is the system noise temperature in Kelvin.
- TREF is the standard reference temperature (usually 290 K).
- The ratio shows how much the system amplifies noise relative to thermal background noise.
Example
Input: TNoise = 580 K, TREF = 290 K
Result: NF = 10 * log10((580 / 290) + 1) = 3.01 dB
Who uses it
Useful for RF engineers and receiver designers to assess system noise performance and optimize sensitivity.