These tunable YIG filters are going for practically nothing on ebay. While they only go to 18 GHz they make an excellent filter to follow testing of an LNA after the mixing process, for noise figure measurements, as an example. After all it is that noise that makes our time and frequency measurements questionable. I am surprised that they typically go for around $50 or less. They are externally tunable with a voltage source that is proportional to frequency. I bet a lot of you would be happy to own one. Regards - Mike
Mike B. Feher, N4FS 89 Arnold Blvd. Howell, NJ, 07731 732-886-5960 _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
