[hpsdr] substitute for a low noise Norton amp

[KA2WEU at aol.com]

DR(n) = ((n-1){IP(n,in)-MDS])/n
 
DR = dynamic range in dB, n= order , IP(in) = input intercept power in dBm,  
MDS is the minimum detecable ignal in dBm.
 
 
For additional consideration look at RF/Microwave "Circuit Design for  
Wireless Applications",
Rohde/Nekirk, Page 96.
 
 
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