Re: [time-nuts] HP Z3805A internal PSU questions
And as soon as I posted this I found what I was looking for on KO4BB's website - I forgot that the z3805 is basically the same as a Z3801. So the fault finding continues. cheers Tim On 29/9/20 8:38 pm, Tim Tuck wrote: Hi all, I have a Z3805A that has failed. The internal power supply board is at fault in that there is nothing on P3. I was wondering if anyone had schematic or more detail on it or ideas about a common fault for the board. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
[time-nuts] HP Z3805A internal PSU questions
Hi all, I have a Z3805A that has failed. The internal power supply board is at fault in that there is nothing on P3. I was wondering if anyone had schematic or more detail on it or ideas about a common fault for the board. any help appreciated. thanks Tim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] 3 Gorges dam slows down Earth's rotation by 60 ns/day
I love the analysis of the Earth! Can you do it for Mars too or is the data not available ? cheers Tim On 30/6/20 3:53 am, Tom Van Baak wrote: [snip] And if you haven't see it before, I have phase, frequency, and ADEV plots of earth here: http://leapsecond.com/museum/earth/ ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] Fake new LPRO 101 Rb's on Ebay?
All... https://www.cdc.gov/coronavirus/2019-ncov/faq.html From the FAQ... /"//Coronaviruses are generally thought to be spread most often by respiratory droplets. Currently there is no evidence to support transmission of 2019-nCoV associated with imported goods and there have not been any cases of 2019-nCoV in the United States associated with imported goods"/ TT On 4/02/2020 6:37 pm, Esa Heikkinen wrote: Perry Sandeen via time-nuts kirjoitti 4.2.2020 klo 9:29: In all seriousness, can the coronavirus be transmitted in gear we buy from China or does it require a living host for spreading? Get an ozone generator and put the contaminated gear to some closed comparment with it. Turn on the generator and let it be for 15 minutes. No more any viruses, bacteria or mold there... so it's easy! ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] Lowest Power NTP Server
Does it have to be Wifi ? What about using 315/433MHz or one of the other LIPD bands on an Arduino ? e.g. https://www.instructables.com/id/RF-315433-MHz-Transmitter-receiver-Module-and-Ardu/ regards Tim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] HP Z3805A GPS replacement ?
Hi Greg, Brilliant! - I did not know about the adapter boards that looks like an excellent solution. I like the idea of substituting an uBlock for its receiver. Thanks also for the additional info, I had managed to find some of that at least :) After sorting out the 422 to 232 conversion and attaching it to the house GPS antenna, mine has been able to achieve lock after about 10 minutes and establish correct time and date from its initial time in 2007. Its been well used with 33,604 hrs on the clock but everything seems to be OK. LH is keeping an eye on it now. Its a fortuitous arrival since my house standard, an old Thunderbolt, has let the smoke out and I cant find the spare Thunderbolt anywhere! thanks Tim -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] Excellent equipment rack
+1 for Starcase - very nice kit. Don't forget to checkout the many Pro Audio suppliers who kit out bands and roadshows with all sorts of interesting racks with wheels and cabinetry. Locally I've bought open racks from VFM Audio that are reasonably priced and come with wheels. https://www.vfmaudio.com.au/server-racks/floor-standing-server-cabinet/open-racks/ regards Tim On 11/06/2019 9:36 pm, John Ackermann. N8UR wrote: Star Case (https:www.starcase.com) is U.S. company (in Indiana) that sells similar open-frame rack kits for very reasonable prices. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
[time-nuts] PC time error interesting cause
Hi all, I have a PC that I use for ham stuff etc. and as part of the normal build I added NTP keep it on track for the things such as WSPR, JT65 etc. I also installed the Meinberg Time Monitor to keep an eye on things. What I found was that over a day of operation, the time would slip nearly two seconds and sometimes randomly jump forward two seconds or so. I didn't think there was anything wrong with the PC since it was a fresh install of Windows 7 with minimal applications installed. What I eventually found was that the "Power Options" item default of "balanced" was the cause for this PC's time slips. Changing the setting to "High Performance" stopped the time walking around. Interestingly I have another PC set to "Balanced" that does not exhibit this problem. Has anyone else seen this effect ? regards Tim de VK2XAX --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to https://lists.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
