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

[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

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/

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

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 --

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

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.

[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