I meant 2 seconds On Thu, Aug 23, 2012 at 11:35 AM, Azelio Boriani <[email protected]>wrote:
> Have you observed the hump yourself or is it published data? If you made > the measure, what reference clock did you use? I have (at work, in another > department) a new PRS10, hope to get it back... > > On Thu, Aug 23, 2012 at 6:00 PM, Bill Dailey <[email protected]> wrote: > > > .... The PRS10 by SRS has serious shortcomings at short tau. I don't > > understand why but there is a huge hump in the adev. That's why I > avoided > > one. > > > > Sent from my iPhone > > > > On Aug 23, 2012, at 10:42 AM, paul swed <[email protected]> wrote: > > > > > OK have been staying clear of the replies. > > > Thats a lot of money for a RB of who knows what age and no support. > > > Those are $25 value items you are taking all of the risks. And yes > indeed > > > you can get RBs for $25 a bit low in the lamp life. But do rejuvenate > > > nicely. FRS class. > > > > > > Brand new ones I think from SRS are that cost, consume a fraction of > the > > > power, great documentation, warranty, and modern control interfaces. > > > What on earth would shipping and customs be?? > > > Cute boat anchor though a real waste of anything. > > > Regards > > > Paul > > > WB8TSL > > > > > > On Thu, Aug 23, 2012 at 11:32 AM, Michael Perrett <[email protected] > > >wrote: > > > > > >> I have found Google translate does a pretty good job on translating > > manuals > > >> - and it is free > > >> Michael > > >> > > >> On Thu, Aug 23, 2012 at 6:40 AM, Richard Parrish <[email protected]> > > >> wrote: > > >> > > >>> The seller of the 'Russian' equipment said that the CCHB-74 frequency > > >>> standard is a rubidium unit. Manual is in Russian but he can > translate > > >>> part > > >>> of the manual into English for an additional fee. > > >>> > > >>> Thanks, > > >>> Richard Parrish > > >>> Cal Center Inc > > >>> 1622 Griffith Ave > > >>> Terrell, Texas 75160-4905 > > >>> [email protected] > > >>> 214-577-3515 > > >>> > > >>> -----Original Message----- > > >>> From: [email protected] [mailto:[email protected]] > > On > > >>> Behalf Of David Kirkby > > >>> Sent: Thursday, August 23, 2012 3:18 AM > > >>> To: Discussion of precise time and frequency measurement > > >>> Subject: [time-nuts] Is this a cesium frequency standard? > > >>> > > >>> There's a seller on ebay by the name of > > >>> "electro-radio-device-high-precision", which have some odd things. > > >>> Some seem as if they would be 19th century items, but are sold as > > "new". > > >>> > > >>> > > >>> > > >> > > > http://stores.ebay.co.uk/electro-radio-device-high-precision?_trksid=p4340.l > > >>> 2563 > > >>> > > >>> I suspect his stuff was desgned for the Russian military. Everything > he > > >>> sells is described as > > >>> > > >>> "analog of Lutron, Advantest, Avtech, HP Agilent, NoiseCom, General > > >> Radio, > > >>> Boonton, Anritsu, Fluke and general Electric, but has the same or > > better > > >>> characteristics." > > >>> > > >>> I thought this one was interesting though > > >>> > > >>> > > >>> > > >> > > > http://www.ebay.co.uk/itm/5MHz-1MHz-100kHz-Frequency-standard-CCHB-74-an-g-A > > >>> gilent-HP-/330758945645?pt=LH_DefaultDomain_0&hash=item4d02c4fb6d > > >>> > > >>> It has lots of knobs to twiddle, so it might be a cesium, though the > > >> specs > > >>> don't seem good enough for a cesium, with a relativa e error of > > >>> +/- 2 x 10^-11 at shipping. That seems more like a rubidium spec. > > >>> > > >>> He has some bizzare stuff, like a power meter which works to 53 GHz, > > but > > >>> has > > >>> banana plugs on it. I guess the sensor is connected to the banana > > plugs, > > >>> though he does not mention it needing an external sensor. > > >>> > > >>> > > >>> > > >> > > > http://www.ebay.co.uk/itm/0-03GHz-53GHz-1mkWatt-10mWatt-Power-meter-M3-22-an > > >>> > > >>> > > >> > > > -g-Agilent-HP-Marconi-GenRad-/230821610924?pt=LH_DefaultDomain_0&hash=item35 > > >>> be0a45ac > > >>> > > >>> Some of his stuff seems very over priced, like a 400-1200 MHz sig gen > > >> with > > >>> an error of 1% for $1580, but other things seem quite reasonable. > > >>> If you need a sig gen at 70 GHz, he has them. > > >>> > > >>> Anyway, its worth checking out his auctions, as he has some test > > >> equipment > > >>> which is very different from what one normally sees - and it some > cases > > >> to > > >>> what one would want to see! > > >>> > > >>> Dave > > >>> > > >>> _______________________________________________ > > >>> 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. > > >> > > > _______________________________________________ > > > 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. > -- Doc Bill Dailey KXØO _______________________________________________ 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.
