I think you would want to avoid crystal filters due to microphonics. I've found building good LCR filters harder in real life than on paper. (I've done plenty of leapfrog active filters from LCR based designs.) I've had to make a passive LCR for ADC testing and secondary (parasitic elements of nonideal component) come into play. Nowadays I just buy COTS.
------Original Message------ From: Chris Albertson Sender: time-nuts-boun...@febo.com To: Discussion of precise time and frequency measurement ReplyTo: Discussion of precise time and frequency measurement Subject: [time-nuts] filtering a 10Mhz frequency standard? Sent: Dec 12, 2011 5:54 PM What is the best practice for filtering a 10Mhz sine wave frequency standard? I've read that you can do more harm than good. Filter parts (caps, resistors and so on) are all temperature sensitive. But all those $40 Rb oscillators are putting out a pretty rough looking sine wave. Are some types of filters better. I thought about a crystal filters. -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
