On Wed, Jan 18, 2017 at 5:40 PM, Loren Moline WA7SKT <[email protected]> wrote:
> Are you talking about locking the 50MHz VCXO to my 10 MH. Standard? I want > the 25MHz to be from my 10MHz OCXO which is my station standard which will > locked to GPS eventually. > The 25MHz WOULD be locked to your 10MHz GPSDO if you first locked a 100MHz or 50MHz to the 10MHz then divided down. Dividers work really well, they can improve the phase noise, Multipliers always add phase noise. Because of this I have always wondered why we build our "standard" with such a low frequency. Why not a 100MHz GPSDO? Why 10MHz > Loren WA7SKT > > > > > On Wed, Jan 18, 2017 at 4:01 PM -0800, "Richard (Rick) Karlquist" < > [email protected]<mailto:[email protected]>> wrote: > > > A better and easier way is to phase lock a crystal oscillator. > I would use a 50 MHz VCXO and divide the output by 2 to get a > 25 MHz square wave. > > Rick N6RK > > On 1/18/2017 10:28 AM, Loren Moline WA7SKT wrote: > > Hello, > > > > I am looking for a good X5 multiplier to use to generate a 25MHz signal > from my 10MHz OCXO. I want to divide by 2 and multiply by 5 with a bandpass > filter in the output and then a 3.3 volt 25MHz signal out. > > > > > > Maybe someone has better ways? > > > > > > Loren Moline WA7SKT > > > > Member: Pacific Northwest VHF Society and ARRL > > Member: Hearsat Satellite Monitoring Group. www.uhf-satcom.com > > Member: CVARS-Chehalis Valley Amateur Radio Society > > Starchat IRC: Channel = #hearsat > > RF Electronics: Starchat IRC: Channel = #rfelectronics > > Grid: CN86mr > > _______________________________________________ > > 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. > -- Chris Albertson Redondo Beach, California _______________________________________________ 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.
