[time-nuts] Sub Pico Second Phase logger

Bruce Griffiths bruce.griffiths at xtra.co.nz
Sat Dec 27 20:29:49 UTC 2008


Hal Murray wrote:
>> What do you mean by "diplexer"?
>>     
>
> It's one of those magic RF/Microwave boxes.
>   http://en.wikipedia.org/wiki/Diplexor
>
>
>   
No, in this context it usually means a circuit that terminates the mixer
port in 50 ohms for RF frequencies whilst maintaining a different
termination imedance for lower frequencies.

Bruce




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