Hi All the stability and likely 20 to 30 db better phase noise. Probably 40 to 60 db better spurs / crud.
Bob On Mar 26, 2013, at 12:31 PM, "Stan, W1LE" <[email protected]> wrote: > I should of been clearer, Thanks for your comments. > > final configuration is: > > OCXO as a 10 MHz reference to the 106.5 MHz PLL then the DB6NT multiplier > chain for the LO. > > All of the stability I need for a contest weekend. > > Stan, W1LE > > > On 3/26/2013 1:21 AM, Rex wrote: >> Please tell us if I am parsing the content of your message correctly with my >> inserted comments. >> >> On 3/25/2013 9:09 AM, Stan, W1LE wrote: >>> Hello Dave, >>> >>> The problem I experienced with a Rb at 10 MHz stabilizing a AD6IW PLL at >>> 106.5 MHz >>> for a DB6NT 10 GHz G2 transverter, >> I assume by "stabilizing" you mean that the rubidium was providing the >> reference frequency to the PLL. >> >>> was the significant microphonics after multiplication. >>> The original xtal oscillator did not have microphonics, but would drift. >>> >>> My solution was to add a ISO-Temp 10 MHz OCXO as a reference to the PLL. >> By "add" I think you mean replace, as in, the rubidium is no longer used but >> the OCXO has replaced it as the PLL's reference. If you really meant add, >> that would imply that somehow the rubidium is disciplining the 10 MHz OCXO. >> >>> This provided me with the frequency accuracy and stability >>> needed for a weekend of microwave contesting, USB/CW >>> >>> My 10 GHz operation is portable and I rove. >>> >>> Stan, W1LE Cape Cod FN41sr >>> >>> >>> >>> On 3/25/2013 10:17 AM, David Kirkby wrote: >>>> I'm possibly looking for a 40 MHz source and I know some of the >>>> rubidiums are programmable. But can any of the affordable ones be >>>> programmed to work at 40.0 MHz? >>>> >>>> I was looking for a source to drive this 144 MHz -> 10 GHz transceiver. >>>> >>>> http://www.chris-bartram.co.uk/products.html >>>> >>>> The TCXO oscillator is off the board and a separate item, but costs >>>> £40 and then one ideally wants to lock that to a more precise source. >>>> The oscillator will lock to an external 10 MHz source, but then one >>>> needs to buy both a 10 MHz rubidium as well as this 40 MHz TCXO. Hence >>>> I was wondering if there was a cheaper more compact solution, which >>>> just used a rubidium, and dispensed with a TCXO. >>>> >>>> Dave >> >> _______________________________________________ >> 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.
