Re: [time-nuts] Thunderbolt question

Hi, I've changed the blown MMBT3904 in the antenna sense circuit and I still have no 5V to the antenna. I measure 0.5V DC on the F connector. There are two Murata filters (F2 and F3) on the RF path to the antenna. In between the two silver colored filters is a 6 lead SOT package marked 51A.

Re: [time-nuts] Can I haz an anti-hydrogen maser now?

Don't put it anywhere near your hydrogen maser or they'll cancel each other out. On Sat, Aug 5, 2017 at 12:55 AM, Christopher Hoover wrote: > http://www.swansea.ac.uk/media-centre/latest-research/ > firstobservationofthehyperfinesplittinginantihydrogen.php >

[time-nuts] Can I haz an anti-hydrogen maser now?

http://www.swansea.ac.uk/media-centre/latest-research/firstobservationofthehyperfinesplittinginantihydrogen.php ___ 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

Re: [time-nuts] Fwd: [hpsdr] SDR experiment for the solar eclipse

there is no reason for an eclipse to affect time. However, working on the 1999 data made available by the German group, I had found a periodicity in the noise in one of the time series. In particular, a pattern (a peak) was repeated every 35 minutes, which was the periodicity recorded by a

Re: [time-nuts] Closeup photo of Thunderbolt PCB around U19 needed- found

Part is MMBT3904 > On Aug 4, 2017, at 5:39 PM, Chris Waldrup wrote: > > Sorry. Should have changed subject line before. Just changed it. > > The EEV blog link shows the transistors but it's too fuzzy to read SMT part > markings. If I can get a code I'll try and look it up

[time-nuts] Closeup photo of Thunderbolt PCB around U19 needed

Sorry. Should have changed subject line before. Just changed it. The EEV blog link shows the transistors but it's too fuzzy to read SMT part markings. If I can get a code I'll try and look it up online. Thank you. Chris > On Aug 4, 2017, at 5:27 PM, Chris Waldrup wrote:

Re: [time-nuts] Thunderbolt question

Thanks guys. I've opened up my T bolt and noticed a SOT23 packaged part has the top blown off. The PPS BNC jack has U19 beside it. The next part is blown. Could someone take a closeup of the five parts around U19? The intact parts are marked: 5Dz 1AM and two 2Az parts. Chris > On Aug 4,

Re: [time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

On Fri, August 4, 2017 9:39 am, Chris Wilson wrote: > Thanks to everyone for the replies, so basically would you say that > with a permanent internet connection I should forget using GPS time to > set the PC clock and just use Meinberg or NTP (which is what I am > currently using and

[time-nuts] Thunderbolt question

Actually that isn't my photo I linked to but one I just Googled. That is probably a board revision most people don't have but it was the first one I saw so I used it just to show that the GPS receiver is part of the only circuit board and not another easily replaceable board like in some other

Re: [time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

I'm all for building NTPD from source (as a former refclock developer). But for those not building from source and wanting to install on Windows, Meinberg NTPD's self-installing package is very easy and does everything right. They distribute this for free. I think they've done a great service.

Re: [time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

On Fri, Aug 4, 2017 at 7:39 AM, Chris Wilson wrote: > > Thanks to everyone for the replies, so basically would you say that > with a permanent internet connection I should forget using GPS time to > set the PC clock and just use Meinberg or NTP (which is what I am

Re: [time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

Doh! Sorry David... I actually found the Meinberg references from the stasignal.eu page. Can't tell you the number of hours I've spent reading your page. Working on both my GPSDO and NTP Stratum-1 solutions now... well, they're "on the list". 73, __ Clay Autery, KY5G

Re: [time-nuts] Can Lady Heather set PC time directly from aTrimbleThunderbolt?

David J Taylor via time-nuts wrote on Fri, 4 Aug 2017 at 17:18:12 +0100 in <90765FA83DAC4C7EAA06F9A781AA5906@Alta>: > BTW: you refer to "GPS time". Not my area of expertise, but GPS > time and UTC aren't the same - GPS time doesn't use leap-seconds, > for example, so it's

Re: [time-nuts] Can Lady Heather set PC time directly from aTrimbleThunderbolt?

Thanks to everyone for the replies, so basically would you say that with a permanent internet connection I should forget using GPS time to set the PC clock and just use Meinberg or NTP (which is what I am currently using and seems to work just fine)? Best Regards,

Re: [time-nuts] Thunderbolt question

Hi > On Aug 4, 2017, at 9:45 AM, paul swed wrote: > > Arthur > Thanks for the picture. I have a TBolt also and its working just fine at > the moment. > But one day it may not. As several people have mentioned lightnings an > issue. > > So going down the crazy thought path

Re: [time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

Hello, on 04/08/2017 15:36 you wrote: > Answer to second question: For GMT time display set the time zone > name to GMT with a time zone offset of 0. (TZ keyboard command TZ > GMT, command line option /tx=GMT). > First question: Yes Heather can set your system clock (assuming > the

Re: [time-nuts] Fwd: [hpsdr] SDR experiment for the solar eclipse

On 8/4/17 7:22 AM, Tom Van Baak wrote: We were originally going to put a 5071A-locked beacon on three ham bands, but decided WWV and CHU would be better sources, and logistics were turning into a problem: I'm going to be doing my wideband recording from a cottage in northern Michigan. But I'm

Re: [time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

From: Clay Autery I use Meinberg's NTP for Windows... and their Monitor program. https://www.meinbergglobal.com/english/sw/ntp.htm 73, === Clay, That's a Windows compile of the source I mentioned:

Re: [time-nuts] Thunderbolt question

Arthur Thanks for the picture. I have a TBolt also and its working just fine at the moment. But one day it may not. As several people have mentioned lightnings an issue. So going down the crazy thought path for a moment. It appears from your pix you can figure out what the GPS receiver chip set

Re: [time-nuts] Fwd: [hpsdr] SDR experiment for the solar eclipse

> We were originally going to put a 5071A-locked beacon on three ham > bands, but decided WWV and CHU would be better sources, and logistics > were turning into a problem: I'm going to be doing my wideband recording > from a cottage in northern Michigan. But I'm still a time-nut, so the >

Re: [time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

I use Meinberg's NTP for Windows... and their Monitor program. https://www.meinbergglobal.com/english/sw/ntp.htm 73, __ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 8/4/2017 2:10 AM, David J Taylor via time-nuts wrote: > Apologies for the off list reply. > > The

[time-nuts] Thunderbolt question

The Thunderbolt is a single board with the GPS receiver in the lower right between the oscillator case and the connectors in the photo in this link. https://www.eevblog.com/forum/testgear/trimble-thunderbolt-gps-disciplined-oscillator/?action=dlattach;attach=102948;image

Re: [time-nuts] Thunderbolt question

At 12:13 AM 8/4/2017, Chris Waldrup wrote: So no voltage out to antenna. I do have one of those 6V max polyphasers but we did get some really close strikes recently. Oh. As someone who lost a tbolt to lightning last year, I feel your pain. I've had to change the Oncore UT Plus receiver

[time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

Answer to second question: For GMT time display set the time zone name to GMT with a time zone offset of 0. (TZ keyboard command TZ GMT, command line option /tx=GMT). First question: Yes Heather can set your system clock (assuming the program has access privileges to the change the clock.

Re: [time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

Apologies for the off list reply. The site www.davehart.net does not appear to be online any more. Would you know of an alternative source for the Dave Hart Windows port of NTP ? Cheers Arne Arne, The official distribution contains a Windows port which

Re: [time-nuts] Thunderbolt question

Couldn't wait till morning on this as it was on my mind this evening. I unplugged the Thunderbolt from the wall and plugged it back in. Immediately the frequency counter attached went from 9.. to zero then when it was powered back up went to the other side of 10 MHz at 10.000 and