Anders, On 11/26/2012 10:45 AM, Anders Time wrote:
Thanks a lot guys for all the input! The nist articles was a very interesting read. I have ordered the minicircuits ZRPD-1 and will try to build the 2N2222A mixer to to see how far that will take it. I probably also will build a low noise jfet preamp to see if that will reduce the noise. But I probably have to go to build myself a crosscorrelation system to be able to<-180dBc with confidence. Is there any cheap way into cross correlation measurement, using high quality soundcard for example? Or do I have to buy one of these big old expensive dual FFT analyzers?
If you can handle the frequency limitation of the audio-card, you can do that. Cross-correlation using FFT isn't that hard to achieve, and good FFT libraries exist. FFTW for instance and a handfull lines of code do it all.
Cheers, Magnus _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
