[time-nuts] Odetics CommSync GPS Rollover Problem

2018-04-06 Thread Rob Kimberley via time-nuts
Happy to report that problem now resolved by replacing one of the Motorola Oncore modules with a later version. Have just ordered another for the secondary channel. Rob ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

[time-nuts] Odetics Telecom CommSync - GPS Rollover Problem.

2018-03-23 Thread Rob Kimberley via time-nuts
I wonder if Tom Van Baak can help me on this one. Recently powered mine up for the first time in a few years. Although the unit survived the original GPS Rollover, it obviously can't cope with the subsequent one, and is currently showing June 01, 1998 as I type this.. Tom, as you bought

Re: [time-nuts] NTP linked PC clock is slightly ahead of Lady Heather GPS time

2017-10-12 Thread Rob Kimberley
Hi Martin, Thanks for this. Rob -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Martin Burnicki Sent: 11 October 2017 18:17 To: time-nuts@febo.com Subject: Re: [time-nuts] NTP linked PC clock is slightly ahead of Lady Heather GPS time Hi Rob, Rob

Re: [time-nuts] NTP linked PC clock is slightly ahead of Lady Heather GPS time

2017-10-11 Thread Rob Kimberley
I'm using the Meinberg NTP Distribution here with their NTP Monitor prog on Win10-64, and two GPS NTP servers. Config settings: - server 192.168.1.120 iburst minpoll 4 maxpoll 5 server 192.168.1.121 iburst minpoll 4 maxpoll 5 Consistent sub millisecond results. I've also found that Win10

Re: [time-nuts] Weird GPSDO behavior

2017-09-29 Thread Rob Kimberley
I'd go with a power surge as it's so regular at 8AM. Rob -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Skip Withrow Sent: 28 September 2017 21:18 To: time-nuts Subject: [time-nuts] Weird GPSDO behavior Hello Time-Nuts, I have a NTGS50AA GPSDO (close

Re: [time-nuts] Need Time Help

2016-10-04 Thread Rob Kimberley
Suggest you try the following which I use on Win10 with great success https://www.meinbergglobal.com/english/sw/ntp.htm#ntp_stable and https://www.meinbergglobal.com/english/sw/ntp-server-monitor.htm Rob K -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On

Re: [time-nuts] End of Loran-C in Europe confirmed.

2015-12-17 Thread Rob Kimberley
Sad news.. -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Poul-Henning Kamp Sent: 17 December 2015 10:51 To: time-nuts@febo.com Subject: [time-nuts] End of Loran-C in Europe confirmed. I've spent some time tracking this down, but it looks like all

Re: [time-nuts] Datum PRS-45A

2015-02-04 Thread Rob Kimberley
From my memory of these units while selling Austron products, they had FTS tubes and the command set should be the same. Sent from Samsung tablet Original message From: W2HX w...@w2hx.com Date:04/02/2015 04:18 (GMT+00:00) To: Discussion of precise time and frequency

[time-nuts] Datum 9150-5106 Manual

2014-11-09 Thread Rob Kimberley
Hi, I'm looking for the manual for a Datum 9150-5106 Airborne Time Code Generator. Unfortunately I got rid of all my Datum manuals some time back. Hope someone can help. Many thanks Rob ___ time-nuts mailing list -- time-nuts@febo.com To

[time-nuts] R.I.N. Journals

2014-07-30 Thread Rob Kimberley
I have a box plus of Royal Institute of Navigation Journals going back several years. Free to a good home - UK - collection only. DE6 2AF post code. Cheers Rob Kimberley ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] Examples of leap-seconds in local timezones

2014-01-23 Thread Rob Kimberley
Magnus, (Going from memory here...) I seem to remember that NPL in UK used to add 0.1 second to each of the first 10 seconds after the hour. If this wrong, I hope someone picks up on it! Cheers Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On

Re: [time-nuts] REQ: Manuals and Schematics for the Austron 2010B

2013-12-31 Thread Rob Kimberley
Hi John, This is an old analogue design, but have used and sold them in the past. A bit of a bugger to set up, but they work well. Good luck! Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of John C. Westmoreland, P.E. Sent: 31

Re: [time-nuts] Austron

2013-12-27 Thread Rob Kimberley
John, I worked for Austron between 1985 and 1989 running their European sales and support. Not sure how much I can help you. I live in the UK. Please email me off list as a first pass.  Rob Kimberley Regards Rob Kimberley  Sent from Samsung Mobile Original message From

Re: [time-nuts] GPS timing antenna 5 meter BNC Plug with cable

2013-12-05 Thread Rob Kimberley
Chinese email address on web site. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of David J Taylor Sent: 05 December 2013 05:56 To: Time-nuts mailing list Subject: [time-nuts] GPS timing antenna 5 meter BNC Plug with cable Anyone

Re: [time-nuts] Using a UBlox NEO-6 GPS module for calibrating a PIC microprocessor based timer.

2013-12-01 Thread Rob Kimberley
Good to hear you're still in the TF biz Mike!! Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Mike Garvey Sent: 01 December 2013 14:46 To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Using a

[time-nuts] Problem with site?

2013-10-22 Thread Rob Kimberley
Just a test to see if this site is working, as had no posts since Sunday. Cheers Rob Kimberley ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow

Re: [time-nuts] Problem with site?

2013-10-22 Thread Rob Kimberley
message arrived at 0559 this morning 22nd Oct Alan G3NYK - Original Message - From: Rob Kimberley robkimber...@btinternet.com To: 'Discussion of precise time and frequency measurement' time-nuts@febo.com Sent: Tuesday, October 22, 2013 12:52 PM Subject: [time-nuts] Problem with site? Just

Re: [time-nuts] refclock - NTP server settings/tuning?

2013-09-30 Thread Rob Kimberley
I've found that setting Minpoll and Maxpoll to 5 gives me best results. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Anders Wallin Sent: 29 September 2013 13:11 To: Discussion of precise time and frequency measurement Subject:

Re: [time-nuts] Case for Rb Standard?

2013-09-27 Thread Rob Kimberley
Bob, Should work OK if it's a metal case and fan is good. You need a decent also heat sink as they run pretty hot. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Bob Stewart Sent: 27 September 2013 04:03 To: Time Nuts Subject:

Re: [time-nuts] Space mission comes to an end because of a computer time tagging problem

2013-09-21 Thread Rob Kimberley
David, The satellite has probably got a Rb as its clock (hopefully more than one). All I can imagine is that there has been a major clock failure of some sort, and everything is in free run and unable to sync up with ground. Thoughts? Rob -Original Message- From:

Re: [time-nuts] FCC politics vs their engineers...

2013-09-18 Thread Rob Kimberley
I remember a story told to me many years ago, about a discussion between an American Astronaut and a Russian Cosmonaut. It goes along something like this... Astronaut to Cosmonaut: I wouldn't be happy sitting on the top of that low technology rocket Cosmonaut to Astronaut: I would rather

Re: [time-nuts] New NTBW50AA

2013-09-15 Thread Rob Kimberley
Do you have any idea how much the antenna will move in a strong wind? It really needs to be in a secure rigid position for optimum timing performance. Sorry if this has been covered before but just picked up the thread. Rob -Original Message- From: time-nuts-boun...@febo.com

Re: [time-nuts] 9390-55108 IRIG

2013-08-09 Thread Rob Kimberley
Mark, What is your ref clock driver 6 expecting to see? IRIG-B can be in a modulated or un-modulated form (Datum called this DC code) The DC code was usually TTL compatible PWM and the IRIG-B would be 3V pk-pk AM. Marker 8 cycles, 1 5 cycles and 0 2 cycles wide. Spaces 1V pk-pk. Rob

Re: [time-nuts] 9390-55108 IRIG

2013-08-09 Thread Rob Kimberley
a picture from an oscilloscope would be a better way to describe it? Listening to it, I hear 1KHz and 50(100?)Hz hum? --marki -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Rob Kimberley Sent: Friday, 9 August 2013 10:03 PM

Re: [time-nuts] 9390-55108 IRIG

2013-08-09 Thread Rob Kimberley
Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Rob Kimberley Sent: Friday, 9 August 2013 10:32 PM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] 9390-55108 IRIG https://www.google.co.uk/search?q=IRIG+Boe=utf-8rls

Re: [time-nuts] 9390-55108 IRIG

2013-08-09 Thread Rob Kimberley
It was originally designed to put on magnetic tape for time tagging telemetry data from the White Sands missile testing base. It can be used for a number of applications where you need to send time via coax cable to other devices i.e. time displays, synchronising other timing devices. Google

Re: [time-nuts] GPS Spoofing

2013-07-28 Thread Rob Kimberley
I've just been catching up on this thread. The subject says GPS Spoofing, but most of the replies seem to revolve around jamming. Not the same thing. Just a thought... Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of J. Forster

Re: [time-nuts] BPSK decoder for WWVB

2013-07-03 Thread Rob Kimberley
I assume you mean MSF... Sent from Samsung Mobile Original message From: Brian Alsop als...@nc.rr.com Date: To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] BPSK decoder for WWVB Apparently this modulation scheme is

Re: [time-nuts] The auction site?

2013-07-02 Thread Rob Kimberley
I always thought it was a bit strange. As we say over here: call a spade a spade Sent from Samsung Mobile Original message From: Doug Calvert dfc-l...@douglasfcalvert.net Date: To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject:

[time-nuts] Glonass Payload lost...

2013-07-02 Thread Rob Kimberley
http://www.bbc.co.uk/news/science-environment-23140665 Rob ___ 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 instructions there.

Re: [time-nuts] Language -- The eternal barrier

2013-07-01 Thread Rob Kimberley
Classic!!! :-) -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of gandal...@aol.com Sent: 01 July 2013 09:45 To: time-nuts@febo.com Subject: [time-nuts] Language -- The eternal barrier Having recently bought a couple of MV89As I

Re: [time-nuts] Datum 9390 issues spectracom 8195a woes

2013-06-11 Thread Rob Kimberley
short. Anyhow, I have a Symmetricom antenna driving a Symmetricom active splitter obtained from someone on the list, may have been John A, which works very well, so the Bullet is taking a rest :) Didier Rob Kimberley robkimber...@btinternet.com wrote: Didier, The 9390s were supplied with Trimble

Re: [time-nuts] Datum 9390 issues Spectracom 8195a woes

2013-06-11 Thread Rob Kimberley
That should have said: is it drawing any current... Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Rob Kimberley Sent: 11 June 2013 11:40 To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Datum

Re: [time-nuts] Datum 9390 issues spectracom 8195a woes

2013-06-10 Thread Rob Kimberley
Didier, The 9390s were supplied with Trimble Bullets and were usually very sensitive as long as you watch cable length/attenuation. It sounds like you Bullet is faulty. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Didier Juges

Re: [time-nuts] 9390 GPS RX

2013-05-22 Thread Rob Kimberley
Mark, What is the full model number (from label on rear)? It will be 9390-. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Mark C. Stephens Sent: 22 May 2013 07:56 To: time-nuts@febo.com Subject: Re: [time-nuts] 9390 GPS RX

Re: [time-nuts] Austron 2200A investigation

2013-05-19 Thread Rob Kimberley
...@febo.com] On Behalf Of Rob Kimberley Sent: 19 May 2013 17:43 To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Austron 2200A investigation The Rb was externally calibrated and then left to free run. They then used DDS to get frequency o/p. Austron used

Re: [time-nuts] UPDATE: DATUM 9390-52054 Grief again...

2013-04-13 Thread Rob Kimberley
Burt, what is your DAC setting now it's stabilised? It is normally set so it is mid-range when setting these units up. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Burt I. Weiner Sent: 12 April 2013 19:49 To: time-nuts@febo.com

Re: [time-nuts] Questions about Austron 5000 Loran C receiver

2013-04-13 Thread Rob Kimberley
Hi, I don't know this model from Austron, but you could try asking fellow Time Nuts if anyone has a manual for the 5000 which should include the full calibration procedure. I know on the Austron 2000C the calibration procedure was quite a long to set it up correctly. I'm sure that the 5000 will

Re: [time-nuts] Connectors

2013-04-12 Thread Rob Kimberley
It's a very useful material, also called Self Amalgamating Tape. Been using it for years for all sorts of outside cable work. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Azelio Boriani Sent: 12 April 2013 14:00 To: Discussion

Re: [time-nuts] GPS antenna??

2013-04-10 Thread Rob Kimberley
. From: Rob Kimberley robkimber...@btinternet.com To: 'Tom Van Baak' t...@leapsecond.com; 'Discussion of precise time and frequency measurement' time-nuts@febo.com Sent: Tuesday, 9 April 2013, 12:51 Subject: Re: [time-nuts] GPS antenna?? Unfortunately, (I think

Re: [time-nuts] Trimble SVeeSix -- was DATUM 9390-52054 Grief again...

2013-04-09 Thread Rob Kimberley
You need to be careful as Nigel says as Datum had special SVeeSix units from Trimble in the early days which were specifically modified for timing. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of gandal...@aol.com Sent

Re: [time-nuts] GPS antenna??

2013-04-09 Thread Rob Kimberley
Alan, I used to do a lot of my Datum demos with customers with antennae up against a window as outside access wasn't available. Usually worked OK, unless as you say, the glass is metalised. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On

Re: [time-nuts] GPS antenna??

2013-04-09 Thread Rob Kimberley
You will see more SVs from the northern hemisphere is you face south, and vice versa. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of li...@lazygranch.com Sent: 08 April 2013 20:51 To: Discussion of precise time and frequency

Re: [time-nuts] GPS antenna??

2013-04-09 Thread Rob Kimberley
Unfortunately, (I think this is still valid in the UK), we are not allowed to use GPS re-radiators. I need to check latest rules regs. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Tom Van Baak Sent: 08 April 2013 22:12 To:

Re: [time-nuts] GPS antenna??

2013-04-09 Thread Rob Kimberley
You still need to set your position to get accurate results with one SV. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Grant Hodgson Sent: 09 April 2013 09:28 To: time-nuts@febo.com; time-nuts-requ...@febo.com Subject: Re:

Re: [time-nuts] GPStar Plus: Rubidium, anyone?

2013-02-13 Thread Rob Kimberley
Bruce, Just a slight correction on the part number the Odetics GPStar Plus was model 365. When the company changed to Zyfer and they upgraded the unit it became a 565. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Bruce Lane

Re: [time-nuts] Network jitter with NTP

2013-02-13 Thread Rob Kimberley
Sarah, David, I've changed my Minpoll and Maxpoll settings as suggested by David and now getting much better results (1 - 2 mS) when settled for the Meinberg Stratum 1 units. I'm also using Meinberg's version of NTP (6.2.6). I'm still experimenting with settings, but it looks like my original

Re: [time-nuts] Possibly off topic - Jitter on Ethernet overpower adapters

2013-02-11 Thread Rob Kimberley
-Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of David J Taylor Sent: 11 February 2013 16:13 To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Possibly off topic - Jitter on Ethernet overpower adapters

[time-nuts] Possibly off topic - Jitter on Ethernet over power adapters

2013-02-10 Thread Rob Kimberley
I'm not sure if this is the best place to ask the question, but does anyone have experience of using Ethernet over power line adapters? I have an outside office, and my router is in the house plugged into the phone master socket. I have used two Ethernet over power adapters, one at the router and

Re: [time-nuts] Possibly off topic - Jitter on Ethernet over power adapters

2013-02-10 Thread Rob Kimberley
From: Rob Kimberley [] I'm not sure if this is the best place to ask the question, but does anyone have experience of using Ethernet over power line adapters? I have an outside office, and my router is in the house plugged into the phone master socket. I have used two Ethernet over power adapters

Re: [time-nuts] Possibly off topic - Jitter on Ethernet over power adapters

2013-02-10 Thread Rob Kimberley
at 3:18 AM, Rob Kimberley robkimber...@btinternet.com wrote: I'm not sure if this is the best place to ask the question, but does anyone have experience of using Ethernet over power line adapters? I have an outside office, and my router is in the house plugged into the phone master socket. I

Re: [time-nuts] Systron 6153 troubleshooting

2013-02-09 Thread Rob Kimberley
damage and the mixer diodes were dead. We also had the occasional bad chip resistor. I know this is not much Chris, but if I can remember anything more, I will let you know. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf

Re: [time-nuts] TrueTime 820-350 display

2013-02-09 Thread Rob Kimberley
I believe there were variations of IRIG which sent the signal (un-modulated or DC code) over a differential circuit, so Triax may have been used. Rob K -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of paul swed Sent: 09 February 2013

Re: [time-nuts] Racal MA-259 Crystal frequency standard on UK eBay

2013-01-23 Thread Rob Kimberley
Agreed, and about 30 miles from where I live. However, do I really need one? :-) Rob K -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of paul swed Sent: 23 January 2013 14:18 To: Discussion of precise time and frequency measurement

[time-nuts] Raspberry Pi Competition...

2013-01-21 Thread Rob Kimberley
http://www.electronicsweekly.com/Articles/28/09/2012/54676/raspberry-pi-gets -a-competitor.htm Rob K ___ 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

[time-nuts] PiFace: Raspberry Pi I/O board

2013-01-10 Thread Rob Kimberley
Please see attached article http://www.electronicsweekly.com/Articles/10/01/2013/55341/piface-raspberry -pi-io-board.htm?dm_i=1GUU,17S1R,805O95,440WA,1 Rob Kimberley ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] An embedded NTP server

2012-12-26 Thread Rob Kimberley
Michael, Which version of Meinberg's NTP build did you install? I've had problems with high jitter content on one of them. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Michael Tharp Sent: 25 December 2012 20:44 To:

Re: [time-nuts] Timing performance of servers

2012-10-25 Thread Rob Kimberley
http://www.meinberg.de/english/sw/ntp.htm You can get NTP for windows and also their NTP Monitor. Free download. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Edgardo Molina Sent: 25 October 2012 01:05 To: Discussion

Re: [time-nuts] Timing performance of servers

2012-10-25 Thread Rob Kimberley
http://www.meinberg.de/english/sw/ntp.htm You can get NTP for windows and also their NTP Monitor. Free download. Rob Kimberley = .. with user-oriented install instructions here: http://www.satsignal.eu/ntp/setup.html Cheers, David -- SatSignal Software

Re: [time-nuts] Timing performance of servers

2012-10-25 Thread Rob Kimberley
We used to filter out anything 10 - 20 degs above the horizon when setting up timing receivers. Typically there's a lot of noise down low (multipath and tropo effects). As long as you've got plenty of SVs you don't need to go way down to the horizon. Rob Kimberley -Original Message- From

Re: [time-nuts] Odetics 365

2012-10-19 Thread Rob Kimberley
standard? Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Rob S. Sent: 18 October 2012 07:40 To: time-nuts@febo.com Subject: [time-nuts] Odetics 365 Hello Group, first time post I have just got my Odetics 365 working again

Re: [time-nuts] Tracking NTP displacement and correlation between two clients.

2012-10-14 Thread Rob Kimberley
Just catching up on all my emails after holiday... Try Meinberg's NTP Monitor http://www.meinberg.de/english/sw/time-server-monitor.htm Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Brent Gordon Sent: 04 October 2012 18:34 To:

Re: [time-nuts] messy workbenches

2012-09-30 Thread Rob Kimberley
Hi Brooke, I'm not sure I should have done that test as I scored 35. Hmmm... Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Brooke Clarke Sent: 29 September 2012 14:11 To: Discussion of precise time and frequency measurement

Re: [time-nuts] Why the fuss - GPS Interference...

2012-09-29 Thread Rob Kimberley
it, considering what he did for a living, he told me that he had been so aware of precise time for so many years that he got tired of knowing precisely what time it was. We had fun together that day. Burt, K6OQK From: Rob Kimberley robkimber...@btinternet.com To: 'Discussion of precise time and frequency

Re: [time-nuts] Why the fuss?

2012-09-28 Thread Rob Kimberley
Tom, We had a similar problem at a BBC site when I was selling Datum in the UK. We managed to get round the problem with a better antenna. The third harmonic of the UHF wasn't slap bang on L1 but close enough with a basic GPS antenna to kill GPS. Rob -Original Message- From:

Re: [time-nuts] Why the fuss - GPS Interference...

2012-09-28 Thread Rob Kimberley
Hi Burt, This sounds familiar! It wasn't a guy called Rich Bailey was it? That's what he suggested I do, but I got onto Trimble and got one of their Bullet antennae with the 3 pole filter (Bullet III?). That worked for us. Rob -Original Message- From: time-nuts-boun...@febo.com

[time-nuts] Javad Letter to FCC...

2012-09-25 Thread Rob Kimberley
http://www.gpsworld.com/javad-asserts-filters-protect-gps-l1-l2-l5-glonass- l1-l2-galileo-l1-l5/ I'm wondering how much LightSquared are paying this guy? Rob ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

[time-nuts] Javad's J-Shield

2012-09-19 Thread Rob Kimberley
Page 19 - 30 in the latest edition of GPS World. http://editiondigital.net/publication/?i=125872 Interesting read.. Rob ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

[time-nuts] Comments on GPS Spoofer on LinkedIn

2012-09-06 Thread Rob Kimberley
http://www.linkedin.com/groups/Here-it-is-Build-sophisticated-1877372.S.130 052818?view=srchtype=discussedNewsgid=1877372item=130052818type=membert rk=eml-anet_dig-b_pd-ttl-cnut=3qd1OcFjEQyRo1 Hope the link works OK. Rob Kimberley ___ time-nuts

Re: [time-nuts] ET-6000 firmware

2012-08-26 Thread Rob Kimberley
Good luck!! -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Didier Juges Sent: 26 August 2012 19:09 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] ET-6000 firmware KO4BB is busy cutting plywood and

Re: [time-nuts] Trimble TimeKeeper

2012-08-01 Thread Rob Kimberley
I believe there have been posts on this subject before. Please try checking the Time Nuts archives for an answer. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of James Fournier Sent: 31 July 2012 22:11 To: time-nuts@febo.com

Re: [time-nuts] Leap Second on Datum ExacTime 6000...Oh well...

2012-07-02 Thread Rob Kimberley
Seem to remember they had a bug in them. Thought it had been fixed Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Bert, VE2ZAZ Sent: 01 July 2012 01:44 To: time-nuts@febo.com Subject: [time-nuts] Leap Second on Datum ExacTime

Re: [time-nuts] Leap second? Yay or nay?

2012-07-02 Thread Rob Kimberley
http://www.bbc.co.uk/news/technology-18672173 Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Tony Finch Sent: 02 July 2012 16:26 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Leap second? Yay

[time-nuts] The Patent Brouhaha

2012-06-30 Thread Rob Kimberley
Murky waters!! http://www.gpsworld.com/gnss-system/patent-brouhaha-13157?utm_source=GPSut m_medium=emailutm_campaign=GNSS-Design_06_29_2012utm_content=patent-brouha ha-13157 Rob Kimberley ___ time-nuts mailing list -- time-nuts@febo.com

Re: [time-nuts] Leap second coming...

2012-06-29 Thread Rob Kimberley
I seem to remember someone from NPL telling me that they actually increment the each of the last 10 seconds before the epoch by 100mS, rather than putting in one whole second. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf

Re: [time-nuts] Clockwise.

2012-06-26 Thread Rob Kimberley
...and still good enough for a lot of folks! Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Tom Holmes Sent: 26 June 2012 15:24 To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Clockwise. Until

Re: [time-nuts] Quadrifilar Helix Antenna

2012-06-09 Thread Rob Kimberley
I had a go at making one in 1986 for a broken NBS unit (huge two 19 RMK, single channel GPS), which had been damaged in transit. Used small sections of semi-rigid coax soldered together. It worked well enough to track SVs and get data we needed. Rob K -Original Message- From:

Re: [time-nuts] Morion MV89A pics

2012-06-09 Thread Rob Kimberley
Bob, FEI as far as I know do own Morion. That's certainly what I was told when I worked for Zyfer (also owned by FEI). Rob K -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Bob Camp Sent: 09 June 2012 02:15 To: Discussion of precise

Re: [time-nuts] Time-nut gettogether in Boulder

2012-06-08 Thread Rob Kimberley
When is the next one Alan? I've tried looking on the NPL site but nothing showing. I've missed some recent ones due to some health issues. Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Alan Melia Sent: 06 June 2012 23:45 To: Tom

Re: [time-nuts] hey - warning

2012-05-29 Thread Rob Kimberley
This is the second one I've had supposedly from the group. Rob K -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of J. Forster Sent: 29 May 2012 01:37 To: Discussion of precise time and frequency measurement Cc: dlh4im...@aol.com Subject:

Re: [time-nuts] AccuBeat AR-40A manual

2012-05-12 Thread Rob Kimberley
Hi Magnus, Have you tried contacting AccuBeat? I believe that Avi Stern is still with them. Try him, I'm sure he will be able to help (and please give him my kind regards). Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf

Re: [time-nuts] Trimble Resolution SMT - good/bad/indifferent?

2012-05-11 Thread Rob Kimberley
Zyfer produced a paper on WAAS for timing. http://support.fei-zyfer.com/downloads.aspx You will need to create a log-in and password to download their stuff. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Mark Sims

Re: [time-nuts] Trimble Resolution SMT - good/bad/indifferent?

2012-05-11 Thread Rob Kimberley
Wasn't this the company that was championing Lightspeed? :-) Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Mark Sims Sent: 11 May 2012 12:20 To: time-nuts@febo.com Subject: [time-nuts] Trimble Resolution SMT -

Re: [time-nuts] question about Thunderbolt geo acuracy

2012-05-10 Thread Rob Kimberley
How accurate do you need your height? Remember that height is the least accurate of GPS parameters due to the fact that you rarely have a GPS satellite directly overhead. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf

Re: [time-nuts] First accurate atomic clock video

2012-05-08 Thread Rob Kimberley
most impressed. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Michael Costolo Sent: 08 May 2012 11:22 To: time-nuts@febo.com Subject: [time-nuts] First accurate atomic clock video I've always been fascinated with science

Re: [time-nuts] Oh dear

2012-05-07 Thread Rob Kimberley
An old saying: a fool and his money are often parted. Sums things up nicely I feel. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Javier Herrero Sent: 07 May 2012 11:30 To: time-nuts@febo.com Subject: Re: [time-nuts

Re: [time-nuts] Chat Room?

2012-05-07 Thread Rob Kimberley
I've not seen many questions ignored on this excellent group. If they were, then maybe, just maybe no one had an answer at that time. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Roberto Barrios Sent: 07 May 2012 14

Re: [time-nuts] Oh dear

2012-05-07 Thread Rob Kimberley
://home-audio.audioadvisor.com/search?w=Power+Cords Burt, K6OQK From: Rob Kimberley robkimber...@btinternet.com To: 'Discussion of precise time and frequency measurement' time-nuts@febo.com Subject: Re: [time-nuts] Oh dear An old saying: a fool and his money are often parted. Sums things up

[time-nuts] Interesting Clock Project

2012-05-02 Thread Rob Kimberley
I personally like the simplicity of this one. Material cost quite low, but takes a good team effort. http://iprl.wz.cz/ Rob Kimberley ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin

Re: [time-nuts] Anyone from Italy here ?

2012-05-02 Thread Rob Kimberley
Lucky those who don't have to live in the EU!! Rob K (UK) -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Tom Knox Sent: 02 May 2012 17:35 To: Time-Nuts Subject: Re: [time-nuts] Anyone from Italy here ? Sadly; It is currently one of

Re: [time-nuts] An interesting freq counter

2012-05-01 Thread Rob Kimberley
The good old days. :-) Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Mark Sims Sent: 30 April 2012 23:05 To: time-nuts@febo.com Subject: [time-nuts] An interesting freq counter With a rather freaky display that I have never

Re: [time-nuts] Ashtech 3DF GPS

2012-05-01 Thread Rob Kimberley
These are specifically for attitude determination in mobile environments. Not sure how good they would be for timing though. I remember seeing something from Trimble a few years back which did similar. Rob K -Original Message- From: time-nuts-boun...@febo.com

Re: [time-nuts] LORAN-C

2012-05-01 Thread Rob Kimberley
I should say so!! Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of J. Forster Sent: 01 May 2012 16:14 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] LORAN-C Antenna envy! -John =

Re: [time-nuts] OT: The tick-tock of the optical clock ....

2012-04-27 Thread Rob Kimberley
I believe that NPL and PTB are working together on this project. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of David J Taylor Sent: 27 April 2012 11:24 To: Discussion of precise time and frequency measurement Subject

Re: [time-nuts] In the atomclock repairshop...

2012-04-26 Thread Rob Kimberley
Nice article. Good to see a fellow 'Nut enjoying his hobby. ...now to brush up on my Swedish Have fun! Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Magnus Danielson Sent: 25 April 2012 20:06 To: Time-Nuts Subject

[time-nuts] Missing parts of threads

2012-04-18 Thread Rob Kimberley
I don't know if it is just me, but I seem not to be getting all messages from Time Nuts. Quite often I'm seeing replies to a thread, and for the life of me I can't find the original post. Comments anyone? Rob Kimberley ___ time-nuts mailing list

Re: [time-nuts] Missing parts of threads

2012-04-18 Thread Rob Kimberley
: Re: [time-nuts] Missing parts of threads Hi Rob Have you checked in your SPAM folder on the webmail site ?? BT-Yahoo is very aggressive sometimesI even find it classifies its own Group management messages as spam occasionally !! Alan G3NYK - Original Message - From: Rob Kimberley

Re: [time-nuts] Missing parts of threads

2012-04-18 Thread Rob Kimberley
: [time-nuts] Missing parts of threads You are not alone ... No, it's not a Spam filter - I check Spam folders regularly and my ISP doesn't pre-filter. Dave -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Rob Kimberley Sent: 18 April

Re: [time-nuts] Missing parts of threads

2012-04-18 Thread Rob Kimberley
. Someone is messing with causality. Dave -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Rob Kimberley Sent: 18 April 2012 12:54 To: 'Discussion of precise time and frequency measurement' Subject: [time-nuts] Missing parts of threads I don't

Re: [time-nuts] Missing parts of threads

2012-04-18 Thread Rob Kimberley
very confusing on a time-nuts group :-)) but at least I wont write it up in Science as a violation of Einstein !! :-)) Alan G3NYK - Original Message - From: Rob Kimberley robkimber...@btinternet.com To: 'Discussion of precise time and frequency measurement' time-nuts@febo.com Sent

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