Don Do you have any way of monitoring the output against some other standard, to see how the Rb is actually performing? I don't know the unit, but logically, I would expect a light to be on and not off when being disciplined.
Manual anyone? Rob K ----- Original Message ----- From: "Don Mimlitch" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, July 06, 2006 7:15 PM Subject: Re: [time-nuts] Autek Model 620 GPS Workstation > > I also have an Autek Model 620 with the same problem. > It tracks satellites fine, but the disciplined light > never goes out. > > If you press the DD key and the the W (West) button the display shows > numbers which seem to > measure it's attempt to discipline the oscillator. > The numbers are in hex but it cycles every 1000 seconds collecting an > average and then adjusts a few parameters > for the next cycle. but the difference never settles. > > I suspect that either the Rubidium Oscillator has > deteriorated so much that changing its field does not affect the > frequency. > Or the Comparator circuit is faulty. > > I am also interested in any ones suggestions. > This would be a great Measurement unit if I could get it working. > > If any one had any circuit diagram I might try to > replace the Rubidium Oscillator. > > > > ------------------------------ > > Message: 5 > Date: Thu, 6 Jul 2006 06:32:05 +0900 (JST) > From: komine shigeharu <[EMAIL PROTECTED]> > Subject: [time-nuts] Autek Model 620 GPS Workstation > To: [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=iso-2022-jp > > Subject:Autek Model 620 GPS Workstation > > Anyone can help me that I have a trouble on the above > unit. > The trouble is: > The GPS disciplined light does not go out. I assume this > means the Rubidium Oscillator has not been synchronized to > the GPS. > (The Rubidium Oscillator works. The GPS unit works.) > > > > > > --------------------------------- > Sneak preview the all-new Yahoo.com. It's not radically different. Just > radically better. > _______________________________________________ > time-nuts mailing list > [email protected] > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
