Hi If the PPS is going to run into a run of the mil sound card, the pulse width likely will need to be > (1/20,000) s. That will require a one shot to do. The Lucent PPS is a bit narrower than that, as is the output of a lot of GPSDO’s.
Bob > On Sep 22, 2016, at 2:41 PM, Bill Riches <bill.ric...@verizon.net> wrote: > > Hi Bob, > > If you could, would you see if you can take the pps out of your lucent box > and use it to sync the pc sound card clock via continuous calibration for > using SL for fx measurements. Maybe by lucent box pps output is bad. > > 15625 from 3586 goes in one channel and pps goes into the other channel of > the sound card and SL does its magic. > > 73, > > Bill, WA2DVU > Cape May > > -----Original Message----- > From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Bob Camp > Sent: Thursday, September 22, 2016 12:55 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Lucent RFTFm-II-XO > > Hi > > I have had no problem using the PPS out of any of the Lucent boxes. They > trigger counters fine and a one shot stretches them to any length you might > need. > > Bob > >> On Sep 22, 2016, at 8:31 AM, Bill Riches <bill.ric...@verizon.net> wrote: >> >> Be careful of the pps output from the dual lucent boxes. Tried to use it to >> sync SL and found that it is a weird non-standard pulse and would not work >> even with a pulse stretcher as it looked too narrow. I use the pps output >> from a Jackson unit and it syncs SL fine. >> >> 73, >> >> Bill, WA2DVU >> Cape May >> >> -----Original Message----- >> From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Hal >> Murray >> Sent: Thursday, September 22, 2016 2:07 AM >> To: Discussion of precise time and frequency measurement >> Cc: hmur...@megapathdsl.net >> Subject: Re: [time-nuts] Lucent RFTFm-II-XO >> >>> Is there a pinout posted somewhere for the Lucent box RS422 D sub 9 >>> connector? >> >> It's in the mail archives. Google for something like >time-nuts RS422 >> pinout< >> >> If you are interested in timing, you want the PPS signal too. (It >> won't be great over USB, but it might be fun to play with. You can >> get your own hanging bridges.) >> >> >> >> -- >> These are my opinions. I hate spam. >> >> >> >> _______________________________________________ >> 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. > > _______________________________________________ > 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. _______________________________________________ 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.
