[time-nuts] Re: Phase noise with a lock-in amplifier.

Alberto di Bene dibene at usa.net
Sat Apr 16 15:29:41 UTC 2005


David Kirkby wrote:

>> 4) Feed the other output from the power splitter into the LO port of 
>> a mixer, via a cable that is a odd integer multiple of a quarter wave
>
Why an odd multiple of a quarter wave ? Wouldn't an even multiple be 
more adequate, so that
the input impedance is reflected more or less unchanged at the output ? 
Am I missing something ?

73  Alberto  I2PHD
 





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