[time-nuts] Measuring a TAPR TICC resolution

I recently taught Lady Heather how to calculate real time histograms of the various plots. While characterizing the performance of a UCT-8663 DOCXO installed in a HP-53132A counter (using the Gerry Sweeny board), I enabled the histogram feature and got a nice plot showing the TAPR TICC

Re: [time-nuts] Papers on timing for lunar laser ranging

Top unit is the GR 1164 synth sig gen. I see what looks like an HP 105 but a slightly modified one. Also the Sulzer. Stuff on the left looks home brew. Regards Paul WB8TSL On Wed, Jul 12, 2017 at 3:27 PM, Tom Van Baak wrote: > 2 items: > > 1) I ran across another link

Re: [time-nuts] Happy Palindromic Days, m-dd-yyyy format

Hi > On Jul 12, 2017, at 4:02 PM, Gregory Beat wrote: > > A palindrome is a word, phrase, number, or other sequence of characters which > reads the same backward as forward, such as the words: madam, racecar, or > tattarrattat. > > Palindrome Days start with July 10,

[time-nuts] Happy Palindromic Days, m-dd-yyyy format

A palindrome is a word, phrase, number, or other sequence of characters which reads the same backward as forward, such as the words: madam, racecar, or tattarrattat. Palindrome Days start with July 10, through July 19. https://www.timeanddate.com/date/palindrome-day.html 7-10-17 backwards is

Re: [time-nuts] Papers on timing for lunar laser ranging

The gizmo with a CRT is a Specific Products WWV receiver. I'm not sure exactly which model, some had the ability to show on the CRT the CRT phase between local clock and WWV via pips, others would show phase via Lissajous figures. Tim N3QE > On Jul 12, 2017, at 4:46 PM, Bob kb8tq

Re: [time-nuts] Papers on timing for lunar laser ranging

HI > On Jul 12, 2017, at 3:27 PM, Tom Van Baak wrote: > > 2 items: > > 1) I ran across another link related to lunar timing. Last year Carroll Alley > died (89). To me he's famous for his cesium and H-maser relativity > experimence in the 1970's. But he was also the PI

Re: [time-nuts] Papers on timing for lunar laser ranging

2 items: 1) I ran across another link related to lunar timing. Last year Carroll Alley died (89). To me he's famous for his cesium and H-maser relativity experimence in the 1970's. But he was also the PI for the Apollo Lunar Laser Ranging Retroreflector experiments. More info here:

Re: [time-nuts] RS232 output on a 53181A

Hi There may well be multiple EEROM’s in the 53181 and 5313x counters. At least when I have blown up the EEPROM in them, it comes back with a error. I haven’t blown any up since the early 1980’s so I don’t quite remember the exact error message involved. Had it simply failed silently, I would

Re: [time-nuts] RS232 output on a 53181A

Well ASCII * is 2a in Hex, p is 70 so that seems an unlikely substitution for a failing EPROM. But 0 is 30 Hex, only one bit different from p. On Wed, Jul 12, 2017 at 10:39 AM, Angus wrote: > Hi, > > I've just been using an Agilent 53181A, but the serial output is not

Re: [time-nuts] GPS Units in Z3801A

Well that's handy to know, I've got a box of those I picked up from a hamfest. I'll have to dig them out and test them On 12 Jul 2017 2:55 pm, "Pete Lancashire" wrote: > I may have more of replacement Motorola GPS receiver modules. I had been > sorting out stuff in

[time-nuts] RS232 output on a 53181A

Hi, I've just been using an Agilent 53181A, but the serial output is not quite what I had expected. On the 53131A's that I've used the placeholder character on the RS232 output is an asterisk, but with this unit it is a lower case 'p'. Where the 53131A sends '2,*** u', this 53181A send '2,ppp u'.

Re: [time-nuts] GPS Units in Z3801A

I may have more of replacement Motorola GPS receiver modules. I had been sorting out stuff in storage and ran across some boxes that came from the same source the last batch came from. It maybe a couple weeks before I can find out. My dance card is pretty full for the next couple weeks and

Re: [time-nuts] A milestone approaches

Hi Tom I passed this along to two of my old time computer gurus - I am sure they will want to celebrate!! 73, Bill, WA2DVU Cape May -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Tom Van Baak Sent: Wednesday, July 12, 2017 8:19 AM To: Discussion of

Re: [time-nuts] A milestone approaches

My spouse's license plate is BEFUNGE. On Wednesday, July 12, 2017, Tom Van Baak wrote: > Hi Bill, > > > Got this from a friend whose MN license plate is UNIX. > > Join the club! There's ~50 of us in the US: http://leapsecond.com/pages/ > unix/ > > > > At that instant,

Re: [time-nuts] A milestone approaches

Hi Bill, > Got this from a friend whose MN license plate is UNIX. Join the club! There's ~50 of us in the US: http://leapsecond.com/pages/unix/ > At that instant, billions of Linux and Unix computers and devices Plus embedded devices, such as Arduino, where 31-bit time_t C libraries are also

[time-nuts] GPS Units in Z3801A

I've also had to replace one. It had a lot of problems acquiring sats. I believe the problem is that the TCXO on the board has drifted out of range. I seem to remember seeing a post somewhere about that and there is supposed to be a fix. Also, isn't the receiver a UT+ 8 channel unit? Or

Re: [time-nuts] A milestone approaches

In message , "Bill Hawkins" writes: >On Thursday night, 21:40 PM CST, it will be exactly 1.5 billion seconds >since Jan 1, 1970 UT, the Unix EPOCH. We threw a big "uptime(1)" party for the entire UNIX ecosystem here in Denmark back when 1e9