ATF33143feb at different feed impedances.
(Jan 30 2013)

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	The NF of the ATF33143feb amplifier is 0.180 dB and the resistive losses in the DUTs sum up to 0.1084 dB.

	The average S/N is -0.1736 dB without the DUT312. One has to add -0.0064 dB to convert -S/N to NF. When the DUT312 is inserted the S/N drops to -0.2934 dB After subtracting the resistive losses one finds S/N=-0.1850 dB which converts to 0.1914 dB for the NF with DUT312.

	The average S/N is -0.1760 dB without the DUT132. One has to add -0.0040 dB to convert -S/N to NF. When the DUT132 is inserted the S/N drops to -0.2931 dB After subtracting the resistive losses one finds S/N=-0.1847 dB which converts to 0.1887 dB for the NF with DUT132.

	The average S/N is -0.1747 dB without the DUT231. One has to add -0.0053 dB to convert -S/N to NF. When the DUT231 is inserted the S/N drops to -0.2934 dB After subtracting the resistive losses one finds S/N=-0.1850 dB which converts to 0.1903 dB for the NF with DUT231.

The average S/N is -0.1772 dB without the DUT213. One has to add -0.0028 dB to convert -S/N to NF. When the DUT213 is inserted the S/N drops to -0.2957 dB (the two values are weighted 1:2 because the second time interval is twice as large as the first.) After subtracting the resistive losses one finds S/N=-0.1873 dB which converts to 0.1901 dB for the NF with DUT213.