Hi Most of the British Racal standards are 5MHz. It may well have been down to what was the best performance of the nationally avilable crystals. Everthing is a compromise. It is easy to double a 5MHz output to 10MHz. One way is to pass it through a bridge rectifier (high speed diodes of course) and then filter it. old 10Mbs "thin" ethernet filters from network cards work well. Check the archives and do a websearch.
Robert G8RPI. ________________________________ From: Bob Camp <[email protected]> To: Discussion of precise time and frequency measurement <[email protected]> Sent: Friday, 2 August 2013, 20:12 Subject: Re: [time-nuts] 5MHz x 10MHz Hi It may well have been teamed up with a piece of Russian designed equipment. Bob On Aug 2, 2013, at 2:40 PM, Euclides Chuma <[email protected]> wrote: > Hi, > > I thank all for your responses. > > My question arose because I bought a TFL Rubidium Standard and the signal > output is 5 MHz. It is a great rubidium standard so I dont understand the > reason of the 5 MHZ signal output since the 10 MHz is the common standard. > > Best regards > _______________________________________________ > 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. _______________________________________________ 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. _______________________________________________ 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.
