[time-nuts] Stanford Research PRS-10
Fellow time-nuts, On monday I picked up my PRS-10 and on friday I picked up the break-out board, PSU and manual. So, today I got around to put the pieces together, with no luck, as it did not lock. After locating a serial cable and hooking up, I was able to start query the PRS-10, and got some hints to the fact that the RF oscillator was sitting in the extreme low of it's control voltage. Check around, I then looked at the SP? command to get the non-standard 65535,2190,23 reading, which when cross-checking with the Appendix A should read 3158,2190,23. A little moment after entering it, the rubidium locked up, jumped in frequency and felt happy. I then stored the new SP setting into the EEPROM using SP! and where able to verify that with the SP!?. I wonder if this was an EEPROM error or someone fooling around error. It ended up not delaying me all that much, but it could have confused me for much longer if I would have been less lucky. Anyway, I wanted to share my experience. Cheers, Magnus ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Stanford Research PRS-10
I'm glad you got it going, but wasn't the consensus of the list that SRS had terrible support on their old gear? I like their arbitrary wabeform generators, but made a mental note to avoid SRS based on a post. I suppose I could have read it elsewhere. -Original Message- From: Magnus Danielson mag...@rubidium.dyndns.org Sender: time-nuts-boun...@febo.com Date: Sun, 22 Apr 2012 02:09:22 To: Time-Nutstime-nuts@febo.com Reply-To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: [time-nuts] Stanford Research PRS-10 Fellow time-nuts, On monday I picked up my PRS-10 and on friday I picked up the break-out board, PSU and manual. So, today I got around to put the pieces together, with no luck, as it did not lock. After locating a serial cable and hooking up, I was able to start query the PRS-10, and got some hints to the fact that the RF oscillator was sitting in the extreme low of it's control voltage. Check around, I then looked at the SP? command to get the non-standard 65535,2190,23 reading, which when cross-checking with the Appendix A should read 3158,2190,23. A little moment after entering it, the rubidium locked up, jumped in frequency and felt happy. I then stored the new SP setting into the EEPROM using SP! and where able to verify that with the SP!?. I wonder if this was an EEPROM error or someone fooling around error. It ended up not delaying me all that much, but it could have confused me for much longer if I would have been less lucky. Anyway, I wanted to share my experience. Cheers, Magnus ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Stanford Research PRS-10
On 04/22/2012 02:31 AM, li...@lazygranch.com wrote: I'm glad you got it going, but wasn't the consensus of the list that SRS had terrible support on their old gear? I ordered break-out board, PSU and manual online, they shipped it and got it to me within days. It's not terrible. Pricey, yes, but not terrible. I have not tried to use their service department. BTW the PRS-10 is very much a current product, just as the SR620 (that was introduced in 1987). It was well packed. Manual was wrapped in plastic, put in a SRS binder which was also packed in a plastic bag. Inside there the PSU and break-out board was also in their own plast packages. Neat and well noted what it contained. I like their arbitrary wabeform generators, but made a mental note to avoid SRS based on a post. I suppose I could have read it elsewhere. Maybe it was not the complete story. Anyway, I have heard about a PRS-10 related issue, in which a PRS-10 had been slaved to a PPS and then jumped about 800 ns and then again about 400 ns. It sounds like uncalibrated input and output interpolators. Cheers, Magnus ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
