Enter gain, noise figure, and P1dB to calculate cascaded system performance. 


Stage 1 
Stage 2 
Stage 3 
Total 
Gain (dB) 




NF (dB) 




P1dB (dBm) 






Total Gain (dB) = Gain_{1} + Gain_{2} + Gain_{3} 
Total NF (dB) = 10*log10(nf_{1} + (nf_{2}1)/gain_{1}) + (nf_{3}1)/(gain_{1}*gain_{2}) 
Total P1dB (dB) = 10*log10((1/(p1dB_{1}*gain_{2}*gain_{3}) + 1/(p1dB_{2}*gain_{3}) + 1/(p1dB_{3}))^1) 

Note: The calculations for Total P1dB and NF use linear values (NOT dB) for nf, p1dB, and gain. 

Need more stages and more system parameters? Try the free
Cascade101 Worksheet! 

