[time-nuts] Close-in phase noise measurements

[Shane]

Do you know much about the R&S FSUP50?

http://www2.rohde-schwarz.com/en/products/test_and_measurement/product_categ
ories/spectrum_analysis/FSUP-%7C-Key_Facts-%7C-4-%7C-966.html


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Bruce Griffiths
Sent: Tuesday, March 25, 2008 8:22 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Close-in phase noise measurements

Shane wrote:
> Wenzel has a setup you can purchase at low cost.  
>
> http://www.wenzel.com/pdffiles1/PNTS%201000/BP-1000-SC.pdf
>
> Phase noise test sets can be pricey... $200K
>   
Shane

Their calibration method is somewhat problematic at the low frequency 
end where the effect of the PLL and the audio amplifier low frequency 
cutoff may be significant.
The NIST calibration technique: 
http://tf.nist.gov/timefreq/general/pdf/1000.pdf is far superior.

Bruce

_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.