I just went and visited their website, and see they also offer a "kit OCXO" from mostly through-hole parts and PCB. The OCXO insulation box is made out of PCB, the thermostat is simply a jellybean TO92 transistor, and the 27MHz crystal is an AT-cut being operated around 45C, so nothing awful time-nutty, but still pretty neat that it's a kit. Details at
http://qrp-labs.com/images/ocxokit/ocxosynth_assembly.pdf show that it walks about 14ppm during warmup and then might be good to a ppm or so. Tim N3QE On Sat, Oct 22, 2016 at 10:02 AM, Giuseppe Marullo <[email protected]> wrote: > Hello, > > I know, I know it is not supposed to be high end stuff(timenutted), but I > was looking for a GPS clock and noticed that this could be a cheap GPSDO > too: > > http://qrp-labs.com/progrock.html > > It has a OCXO option, a box, a display(customizable), a GPS and could be > probably fitted with a Raspberry Zero for a cheap NTP server too. > > Any advice? > Sorry if this has been already discussed here, didn't find any reference > in the ML. > > Could it be compared to a Thunderbolt GPSO in terms of performance, how > worse it could be? > > I just need a clean/self-calibrating 10MHz reference to tune HF radios > ...seems good enough for the price. > > Giuseppe Marullo > IW2JWW - JN45RQ > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/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.
