Yep, they're many ways of doing it. Heating the crystals and watching the frequency of interest for variation, disabling the clocks one at a time, come to mind.
They all have their uses and limitations. -----Original Message----- From: Cortland Richmond [mailto:[email protected]] Sent: Wednesday, August 21, 2002 2:37 PM To: Bill Morse; ieee pstc list Subject: RE: Emissions "quick test" Just a note about telling clocks apart... unless they're phase locked (sometimes even then) a receiver with a BFO can let you distinguish from among clocks only 100's of Hz apart. Sometimes it can let you tell which of several clocks is slower to lock as well, as you can hear the varying tone that makes coming into lock with the reference. Cortland ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list" ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
