[time-nuts] ISS NTP operation problems.

At the end of November a question was posed to the ntp.org list concerning NTP problems on the International Space Station. With William's permission I'm following up on the time-nuts list. I analyzed NTP/IP packet captures provi

[time-nuts] small multi-timezone display

I've got a shelf about 80cm long that I'd like to have 4 timezones displayed on. The obvious easy solution is go buy 4 clocks and put them there. But, being a member of this list - anyone know of a off the shelf multizone display that accepts NTP or receives WWVB? Because, after all, if I gl

Re: [time-nuts] PRS10 not locking to 1PPS

Erik, When I was working at my last (pre-retirement) job, I encountered an old PRS-10 gathering dust. It worked well free-running, but when I tried to lock it to 1PPS, it would do nothing for a while, then would begin deviating further and further from a correct lock. Over a period of a few hour

Re: [time-nuts] PRS10 not locking to 1PPS

Hi Erik, That's a very fine experiment you did. Can you apply a known 1PPS and collect an hour of PP? readings. That might help distinguish between a problem with time-tagging in general and a problem with disciplining the Rb. /tvb On 1/7/2021 7:03 AM, e.j.kr...@vathorstnet.nl wrote: Hi A

Re: [time-nuts] PRS10 not locking to 1PPS

Hi All, I have done an experiment using the PSR10. I have set the Magnetic offset to mid-range MO2950 Than set the Set frequency to 0 SF0. To have 0 frequency offset. Measured the output frequency and calculate the average deviation. By using the Frequency Synthesizer Table from Appendix A I have

Re: [time-nuts] x86 CPU Timekeeping and clock generation

On Wed, 6 Jan 2021 12:06:35 -0800, you wrote: >14.31818 MHz is 4x the NTSC colorburst frequency (~3.58 MHz). It is also >3x the original PC CPU clock frequency (~4.77 MHz). And many years ago, when Never Twice the Same Color was new, a radio ham in Manhatten wass working 80-meter CW* running a

Re: [time-nuts] 20th year of time nuts mailing list

Hi Tom, I admit I'm a little bit late, but anyway congratulation to this huge success. This mailing list and the associated web pages with a huge bunch of information are an incredible treasure. Even though I wasn't able to contribute much to the knowledge concentrated here, it's always a pleasu