RF Cafe Software
About RF Cafe
1996 - 2016
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
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Noise power is based on the thermal noise power at the input of the system, along with system gain and noise figure:
Multiply by 1000 to obtain milliwatts and then convert to dBm units:
or, factoring out the 1000:
Now that we have the thermal noise at the input, add the system gain and the additional noise added by the system (the NF) to get the noise power at the output:
"Noise and Interference" - WebEE Tutorial