[time-nuts] Best phase detector / mixer for 100MHz?

[Adrian]

Bruce Griffiths schrieb:
> Adrian wrote:
>> Bruce Griffiths schrieb:
>>> Demian Martin wrote:
>>>> I asked Wenzel about mixers for phase noise measurement and they 
>>>> directed me
>>>> to Marki Microwave as what they use:
>>>> http://www.markimicrowave.com/2770/Mixers.aspx  I have not obtained or
>>>> tested any myself but it's a pretty solid recommendation I think.
>>>>
>>>> I got this guy to add cross correlation to his FFT software suite:
>>>> http://www.hpw-works.com/  however I have not built hardware to try 
>>>> it. He
>>>> has a 30 day trial and its not expensive for what it is, $300.
>>> There's no evidence of a cross power spectrum function in this suite.
>>> One needs to be able to average at least 10,000 cross power spectra 
>>> for some applications.
>>>
>>> Bruce
>> Here is one that does cross spectrum and more: http://www.sigview.com/
>> A while ago I tried it with a Xonar Essence XT sound card and the 
>> results looked quite promising.
>>
>> Then I got a 3562A to get to 100 kHz (don't follow me there! These 
>> can be challenging to fix if not impossible. PAL's and other 
>> unobtainable 'field programmables' appear to die faster than anything 
>> else in that boxes. Finally, I needed three of them to get one 
>> working unit...)
>>
>> Adrian
>>
> Tried that as well, how does one get a log y scale on the cross 
> spectrum plot?
>
> Bruce

With Sigview? I'm sorry my trial version has long expired and even after 
installing the latest version it's now requiring a license key...

Adrian

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