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noise figure test on non-50 ohm system

Question asked by lisa on Jul 18, 2011
Latest reply on Aug 18, 2011 by tabbott
I want to test GPS receiver chip at analogue part. impedance of input RF is 50ohm, but impedance of output IF is not 50ohm and is about 1M ohm. I am not sure if E4440+Noise Source is suitable for this case.  Should I add a impedance match part to change outnput impedance to 50ohm??  Could you give me some advice?? Thanks!!