Good afternoon, There is a problem in the literature that people confuse the "spot noise figure" and the "large signal " noise properties. Here AF and KF needs to be known and considered. Here is the mathematical correct formula in a Word for Windows Form attached file. If you use it for publications, please quote me . Thanks My advise is take a BIP transistor , fT not much more then 20 x operating frequency (lower flicker component) and operate it at 15 to 20 % of ICmax. The BFG540 is amongst the best Oscillators oscillators http://www.nxp.com/documents/data_sheet/BFG540_X_XR_N.pdf Now you outperform most colleagues 73 de Ulrich N1UL xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx In a message dated 7/18/2015 1:19:57 P.M. Eastern Daylight Time, p...@petelancashire.com writes:
https://scholar.google.com/scholar?q=measuring+transistor+noise&hl=en&as_sdt =0&as_vis=1&oi=scholart
OscPN.docx
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