Re: [time-nuts] Tymserve 2100 thinks it's 1995?

Mine was fine until I power cycled it :( I can confirm that even with the v4.1 firmware, power cycling it causes the date to revert back to 1995. A software restart as listed below seems to restore the correct date for awhile but it eventually reverts back to the wrong year. Maybe some smar

Re: [time-nuts] Lucent KS-24361/Thunderbolt antenna advice sought.

On Mon, May 4, 2015 at 5:18 AM, Oghma wrote: > Hi, all > I've only recently joined time-nuts, having recently become interested in > having a stable, accurate frequency reference available - mainly for amateur > radio applications in the 1-24GHz region. > > Anyway, I have a Trimble Thunderbolt G

[time-nuts] OT: PDF editing (was: Re: Ultra High Stability Time Base Options for 53132A)

On 5/4/2015 5:25 PM, J. L. Trantham wrote: Charles, Thanks for the help. I need to learn how to add text to .PDF documents. Go to: www.tracker-software.com and download (for free): PDF-Xchange viewer. Rick Karlquist N6RK ___ time-nuts mai

[time-nuts] TymServe 2100 1995 Issue - A Kludgy Fix

We also ran into the TS2100 1995 bug this weekend. For us the consequences are a bit more severe... The telescopes will not point to the right location in the sky without accurate time! For now we have configured a temporary fix... We set up two units, previously our primary and hot spare.

Re: [time-nuts] Tymserve 2100 thinks it's 1995?

Yes, but it can be a bit difficult to find on some units. Our 2100's do not have a BNC 1PPS in, but you can put the signal on pins 6 and 8 of the GPS HD15 connector, 6 is signal, 8 is ground. Andrew -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Mar

Re: [time-nuts] Tymserve 2100 thinks it's 1995?

Hi, by any chance do your Tymserve 2100's havea 1pps input that they can use to receive a timing source in lieuof their own GPS once the date and time are set manually? I run my Datum badged Tymserve 2000 this way and other thanhaving to manually deal with leap seconds it has been working well s

Re: [time-nuts] Ultra High Stability Time Base Options for 53132A

Charles, Thanks for the help. I need to learn how to add text to .PDF documents. To change the focus a bit, I'm just getting to know the Morion variant but it seems very impressive so far. As a 'SEVERE' novice in the 'time-nuts' arena, if anyone is interested in helping me characterize the two

[time-nuts] The low budget UT+ newbie time-nut project: Frequency Reference

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Re: [time-nuts] Tymserve 2100 thinks it's 1995?

Hi Before we all wail and moan about Tymeserve not rolling out a fix consider: This is not exactly a brand new box. They already patched this issue once (a decade ago). There are some very big names in the business that cut non-security patch support at the 5 year point. The market for this

Re: [time-nuts] Tymserve 2100 thinks it's 1995?

Bob Martin writes: > > Additional information -- > > Power cycling (leaving it off for about 5 minutes) didn't do any good. > > Once at the correct time/date, it bounces back to 1995 at about 30 seconds after the hour (now to Sep 18, 1995). > > >

[time-nuts] time-nuts scraping

Hello Time-Nuts, If you have some technical expertise with the evolving web, please read this; otherwise ignore this off-topic post. Normally people enter time-nuts through the main Time-Nuts web page: http://leapsecond.com/time-nuts.htm And John Ackermann, N8UR, hosts this list at: https://w

Re: [time-nuts] Lucent KS-24361/Thunderbolt antenna advice sought.

Hi Both units put out DC to the antenna. With them “dc coupled” to each other and the antenna, you may see “antenna open” (low current) warnings. There are multiple solutions ranging from using DC loaded couplers (HP/Symmetricom) or simply tacking a resistive load on a multi-port splitter (Mini

Re: [time-nuts] GPS splitter (was antenna advice sought)

I have a 58535A splitter that was purchased on ebay in 2013 that was working fine when I stopped using in 2014. I'd like to "give" it to someone who has need of a reasonable two-way splitter. I.e. not simply for resale if you don't mind. It goes to the first requester -- off-list ONLY. You have

Re: [time-nuts] TS2100 thinks it's 1995...

Middle of the night I had a worry this was a rollover bug... And that seems to be confirmed, 1024 weeks. As I mentioned in an electronic conversation with another TS2100 user, I have the feeling our TS2100s have turned into turnips. Well, I can use the 1U space in that rack... Don't recall what

Re: [time-nuts] Lucent KS-24361/Thunderbolt antenna advice sought.

I am using hp58516a distribution amplifier. Trimble active antenna, Trimble TB and BC637PCI constantly connected to that unit. And time to time I connecting some DUT and GPS modules to it. It works for me. Regards, V.P. On 2015-05-04 08:18, Oghma wrote: Hi, all I've only recently joined tim

Re: [time-nuts] Tymserve 2100 thinks it's 1995?

It's not you, it's the TS2100. I have the same issue. Looks like this may be the end of life for this unit unless Datum/Symmetricom creates a patch. I saw the issue start around May 2 21:05 EDT. The time shows 619315200 seconds behind: 619315200/60/60/24/7 = 1024 weeks. It did seem like th

Re: [time-nuts] Tymserve 2100 thinks it's 1995?

You probably need the firmware update: Boot Code - Tymserve_2100 Rev 1.1 12/20/1996 13:07:21 Main Code - TymServe_2100 Rev 4.1 12/01/2005 14:45:23 http://www.ko4bb.com/getsimple/index.php?id=download&file=01_ROM_Images_and_Drivers/DatumET-6000TS-2100.zip -Bob On 05/04/2015 05:43 AM, C

Re: [time-nuts] Tymserve 2100 thinks it's 1995?

This is a known problem for old GPS receivers, refer to this URL: to learn more or search the Internet with the words "GPS week number rollover". On Mon, May 4, 2015 at 12:43 PM, Chris Mottram wrote: > Hi Bob, I've just this minute joined this list, b

Re: [time-nuts] ADEV with very short Tau

Thanks to you three for the answers. I don't have the skills to make a frequency mixer yet, but if I think a good tutorial, I can try ! My goal is to estimate the stability of a rubidium at 0.1s,1s and 10s. I have a GPSDO, some picDiv and one Pulse Generator. I believe the OCXO in the GPSDO (a

Re: [time-nuts] Tymserve 2100 thinks it's 1995?

> Le 4 mai 2015 à 12:43, Chris Mottram a écrit : > > Hi Bob, I've just this minute joined this list, because I Tymserve 2100 unit > we have at work has just started doing the same thing, at just gone 1am UT on > May 3rd. I've also tried restarting and power cycling (this is somewhat > convol

[time-nuts] Lucent KS-24361/Thunderbolt antenna advice sought.

Hi, all I've only recently joined time-nuts, having recently become interested in having a stable, accurate frequency reference available - mainly for amateur radio applications in the 1-24GHz region. Anyway, I have a Trimble Thunderbolt GPSDO, and a Lucent KS-24361 (REF 0 & REF 1 units), and

[time-nuts] GPS data show how Nepal quake disturbed ionosphere

http://www.nasa.gov/jpl/gps-data-show-how-nepal-quake-disturbed-earth-s-upper-atmosphere starting from there I've found also this interesting link http://igs.org/network I was not aware of. Antonio I8IOV ___ time-nuts mailing list -- time-nuts@febo.

Re: [time-nuts] Tymserve 2100 thinks it's 1995?

Hi Bob, I've just this minute joined this list, because I Tymserve 2100 unit we have at work has just started doing the same thing, at just gone 1am UT on May 3rd. I've also tried restarting and power cycling (this is somewhat convoluted as the unit is ~3000 miles away from me) but it's firmly

Re: [time-nuts] Tymserve 2100 thinks it's 1995?

Additional information -- Power cycling (leaving it off for about 5 minutes) didn't do any good. Once at the correct time/date, it bounces back to 1995 at about 30 seconds after the hour (now to Sep 18, 1995). My Tymserve 2100 gps unit (Rev 4.1) thi

Re: [time-nuts] Tymserve 2100 thinks it's 1995?

Sep 17 1995 to May 3 2015 is exactly 1024 weeks. http://www.leapsecond.com/notes/gpswnro.htm On Sun, May 3, 2015 at 7:31 PM, Bob Martin wrote: > My Tymserve 2100 gps unit (Rev 4.1) thinks it's 1995 -- September 17, 1995. > > But a restart (connect via telnet and give the commands util restart)

Re: [time-nuts] Tektronix Sample Heads

Yes, that's about right, Magnus. I believe it depends on how many sampling channels are in use, since there is a factor of two interleaving in some cases (to the best of my memory). That is really the holdoff rate between the acceptance of trigger edges. If the trigger signal rate is lower (such a

[time-nuts] Tymserve 2100 thinks it's 1995?

My Tymserve 2100 gps unit (Rev 4.1) thinks it's 1995 -- September 17, 1995. But a restart (connect via telnet and give the commands util restart) brings it back to the correct time and date -- for a while? I haven't caught it dropping back, so i don't know if it's doing this on the hour, after a

[time-nuts] TimeLab + sr620

Hello, I've taken a first pass at using TimeLab over the weekend. I wasn't able to get it to work with my SRS sr 620 over RS232. I know that the com port / serial cable and counter are working. I can open terminal, talk to the counter, and make a measurement. When I setup a measurement

Re: [time-nuts] [Bulk] Re: [Bulk] Re: [Bulk] Re: Ultra High Stability Time Base Options for 53132A

I have removed the HP Opt 010 board from my 53132A and installed the MV89 variant from Poland. So far, looks good. Having done that, C2, C3, C4, and C5 on the HP 53132-60011 board that I 'modified' to a 53132-60016 board, appear to be .01 uF SMT caps. The 'take home' message here is that the