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.
