Lee, Another option might be something like this:
http://qrp-labs.com/progrock.html it is a standalone ATTiny based device which uses a plug in Si5351a synthesizer. Output frequencies from as low as 3.515 khz to a 100+ MHz can programmed and can be GPS disciplined suing a GPS' PPS. There are some limits on the PPS (i.e. very narrow will work). Granted, phase noise and jitter in this example are a wildcard and I couldn't comment on that with respect to your application. The Si5351a synthesizer board uses a simple 27MHz crystal but can replaced with a standard SMD 27MHz oscillator or TCXO. Once "burned" in, can be very stable all on it's own and may be sufficient your needs. cheers, Graham On 10/19/2016, "Lee - N2LEE via time-nuts" <[email protected]> wrote: >First let me say this is first time I have posted to the group so go easy on >me. :) >Secondly I want everyone to know that you guys make me feel so NORMAL for >wanting to use and understand accurate timing devices. > >I thought there was something seriously wrong with me now I know there are >others >affected with the same disease. hehe > >Now my questions. > >1. Does anyone know of a device that will take a 1PPS GPS timing signal and >generate a 32.768 kHz sine wave output ? >I have big digital clock that uses an 8 bit micro processor and an external >32.768 crystal. Obviously the external crystal is >awful for accuracy. > >I have searched every where using as many search terms as I can think of and >canât believe there is not a device that performs >this function. > >I have found a couple of Epson RTC chips that might come close that 1pps but I >donât think that corrects the 32khz just the clock time. > >2. 10 Mhz Freq Standard >I am not in the same league as the majority of the list members and just >starting to dabble in GPSDO stuff. >I have tried to find a thunderbolt as a starting device but it appears those >are either dried up or people want too much money. > >I wanted to get the opinion of anyone who has tried the Leo Bodnar GPSDO ? >For the money it appears to offer a beginner a lot of features. > >Thanks and reading the daily digest of what you guys are working on. >I have a feeling if I am not careful you guys could cost me a lot of money. >hehe > > >Lee > _______________________________________________ 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.
