[time-nuts] Are the days of buying a crystal numbered?

Marco IK1ODO -2 ik1odo at spin-it.com
Mon Feb 22 13:32:54 UTC 2010


There are several kits around using the Si570 serires of oscillators. 
I built the FA-SY and it's very nice:

http://www.funkamateur.de/download-files/dl1fac_FA-SY-Umbau.pdf

FA-SY includes a program to trum the frequency, and a simple oven to 
heat the oscillator. It stays in some parts in 10^9, and is 
spectrally very clean. I expected it to be much worse :-) - I may 
post some plots, if anyone is interested.

Then see http://www.mydarc.de/dg8saq/SI570/index.shtml and 
http://www.sdr-kits.net/USB/USB_Description.html

73 - Marco IK1ODO




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