Bob, are you referring to a particular GPSDO (for $120)? Which is it? Can you provide a link?
Andy Bardagjy bardagjy.com On Sun, Jun 2, 2013 at 4:30 PM, Bob Camp <[email protected]> wrote: > Hi > > Far cheaper to spend the $120 on the GPSDO that does the 9.8304 to 10 MHz > conversion than to send the Rb back to the factory. > > Bob > > On Jun 2, 2013, at 4:24 PM, Ed Palmer <[email protected]> wrote: > > > Glutton for punishment, aren't you Mark! :) > > > > There's probably no way to get to 10 MHz. I have two of these that I > picked up just to play with. Another purchaser contacted Symmetricom and > actually got some information out of them. The oscillator in these runs at > 58.9824 MHz. The default output is 9.8304 MHz. The output can be changed, > but only in submultiples of the 58.98 MHz. e.g. 58.98 divided by 6 equals > 9.8304. You can change the '6' to various integers as documented in the > manual. > > > > To move the output to 10 MHz you'd have to change the crystal back to > the standard 60 MHz so that you could divide it by 6. But then you'd mess > up the multiplier that takes the crystal frequency up to the Rb frequency. > You'd have to change the synthesizer that controls that side of the > system. There's no way to tell if that would require a completely new > firmware load or if, just maybe, there could be an undocumented (maybe > protected) command to modify it. You might be able to send it back to > Symmetricom to get it changed but, based on my experience, you couldn't > afford it. > > > > Ed > > > > On 6/2/2013 11:52 AM, Mark C. Stephens wrote: > >> These are 9.8304Mhz, is possible to move them to 10Mhz? > >> > >> > http://www.ebay.com/itm/Symmetricom-SA-22c-9-8304MHz-Precision-Rubidium-Oscillator-5V-and-15V-NICE-/261223397404 > >> > >> > >> -marki > >> > >> > >> Kind Regards, > >> Mark Stephens > >> > >> Mark Clemens Stephens | Customer service engineer | Non-Stop Computer > Ltd > >> * +61 2 9011 8186 | ( +61 428 256 334 | * [email protected]<mailto: > [email protected]> > >> > >> Non-Stop Computer PTY LTD > >> 79 Devon St > >> North Epping > >> NSW 2121 > >> Australia > >> Timezone: AEST (UTC +10) > >> > >> Email: [email protected]<mailto:[email protected]> > > > > _______________________________________________ > > 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.
