Re: [time-nuts] Loran-C French Clocks

2009-03-18 Thread Poul-Henning Kamp
In message 000501c9a7b1$ef689bb0$a101a...@officemail, phil writes: GMT based (UT1?): Great Brittian, Denmark No, legally Denmark is still on mean solar time. https://www.retsinformation.dk/Forms/R0710.aspx?id=83966 -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org

Re: [time-nuts] Loran-C French Clocks

2009-03-18 Thread Arnold Tibus
Sorry Magnus, my comment were not related exactly to your question, I know. Mainly I did want to help to clarify a bit wether France does or not base their official time to UTC. [L'HEURE LEGALE ou l'heure en usage en France se détermine à partir du Temps universel coordonné (UTC). par le

Re: [time-nuts] Loran-C French Clocks

2009-03-18 Thread Arnold Tibus
Sorry again, not of real importance, but I forgot to annex the mentioned map, On Wed, 18 Mar 2009 13:53:48 +0100, Arnold Tibus wrote: Sorry Magnus, my comment were not related exactly to your question, I know. Mainly I did want to help to clarify a bit wether France does or not base their

Re: [time-nuts] Loran-C French Clocks

2009-03-18 Thread M. Warner Losh
and frequency measurement : time-nuts@febo.com : Sent: Tuesday, March 17, 2009 7:27 PM : Subject: Re: [time-nuts] Loran-C French Clocks : : : Arnold, : : I therefore cannot see any problem is with France, : but we have the need to define more precise and stable : reference time from where we can

Re: [time-nuts] Loran-C French Clocks

2009-03-18 Thread M. Warner Losh
In message: 49c033e3.2010...@rubidium.dyndns.org Magnus Danielson mag...@rubidium.dyndns.org writes: : So far: : : UTC based: France, Sweden : GMT based (UT1?): Great Brittian, Denmark US: UTC It was Mean Solar Time for a long time, and then it was changed to Mean Solar Time as

Re: [time-nuts] Loran-C French Clocks

2009-03-18 Thread M. Warner Losh
In message: 000501c9a7b1$ef689bb0$a101a...@officemail phil fort...@bellsouth.net writes: : This will answers all the questions. : http://en.wikipedia.org/wiki/GMT Except that it doesn't answer much of anything for Magnus' questions. There's only 4 countries listed. Warner

Re: [time-nuts] Loran-C French Clocks

2009-03-18 Thread Magnus Danielson
M. Warner Losh skrev: In message: 000501c9a7b1$ef689bb0$a101a...@officemail phil fort...@bellsouth.net writes: : This will answers all the questions. : http://en.wikipedia.org/wiki/GMT Except that it doesn't answer much of anything for Magnus' questions. There's only 4

Re: [time-nuts] Loran-C French Clocks

2009-03-18 Thread Magnus Danielson
Arnold, Arnold Tibus skrev: Sorry Magnus, my comment were not related exactly to your question, I know. OK. No problem. Mainly I did want to help to clarify a bit wether France does or not base their official time to UTC. [L'HEURE LEGALE ou l'heure en usage en France se détermine à

Re: [time-nuts] Loran-C French Clocks

2009-03-18 Thread Magnus Danielson
M. Warner Losh skrev: In message: 49c17d52.6050...@rubidium.dyndns.org Magnus Danielson mag...@rubidium.dyndns.org writes: : I am still wondering who would set up NTP servers that provides UT1 time : in order to realize GMT over NTP. It would not be all that difficult as :

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Magnus Danielson
Rich and Marcia Putz skrev: Hi all; Gov't got to save that money for executive bonuses! Also, would anyone like to speculate when France finally accepted UTC? Uhm? I thought France was UTC country... Anyone got a comprehensive list of what time scale is legally accepted in various

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Steve Rooke
Hi Magnus, Try this site out for size: http://wwp.greenwichmeantime.com/info/timezone.htm 73, Steve 2009/3/17 Magnus Danielson mag...@rubidium.dyndns.org: Rich and Marcia Putz skrev: Hi all; Gov't got to save that money for executive bonuses! Also, would anyone like to speculate when

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Steve Rooke
And they are on CET = GMT+1 2009/3/17 Magnus Danielson mag...@rubidium.dyndns.org: Rich and Marcia Putz skrev: Hi all; Gov't got to save that money for executive bonuses! Also, would anyone like to speculate when France finally accepted UTC? Uhm? I thought France was UTC country...

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Didier
...@febo.com wrote: Never ?? 73, Dick, W1KSZ -Original Message- From: Rich and Marcia Putz rp...@bnin.net Sent: Mar 16, 2009 6:54 PM To: time-nuts@febo.com Subject: [time-nuts] Loran-C French Clocks Hi all; Gov't got to save that money for executive bonuses! Also, would

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Arnold Tibus
UTC? France? Of course they do accept it! see : Université de Technologie de Compiègne (UTC) (www.utc.fr/) [ ;-) ] More seriously: We do use in Europe, including France, CET ¡ Central European Time, Time zone offset: UTC + 1 hour. Interesting facts: The GPS navigation system has GPS Time

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Lux, James P
On 3/17/09 5:58 AM, Arnold Tibus arnold.ti...@gmx.de wrote: Interesting facts: The GPS navigation system has GPS Time as its basis. Galileo will have TAI as its basis. GLONASS has UTC as its basis, Air traffic controllers are using UTC. The latter is probably because air traffic control

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Poul-Henning Kamp
In message c5e4ee4d.6481%james.p@jpl.nasa.gov, Lux, James P writes: On 3/17/09 5:58 AM, Arnold Tibus arnold.ti...@gmx.de wrote: Interesting facts: The GPS navigation system has GPS Time as its basis. Galileo will have TAI as its basis. GLONASS has UTC as its basis, Air traffic

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Brooke Clarke
Hi Poul: I've more than once misread a clock display of the type 12:34:05. I've noticed that military clocks show 1234:05 and there's no mistaking the time. Seems like a more foolproof display format. Have Fun, Brooke Clarke http://www.prc68.com Poul-Henning Kamp wrote: In message

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Magnus Danielson
Arnold, I therefore cannot see any problem is with France, but we have the need to define more precise and stable reference time from where we can then measure and add the Earth and Solar instabilities for our daily used standard watches, in order to be enabled still to continue living

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Magnus Danielson
Steve Rooke skrev: Hi Magnus, Try this site out for size: http://wwp.greenwichmeantime.com/info/timezone.htm No. It just fails to make the distinction that I am asking for... Stockholm, Sweden is UTC+1h as normal time and UTC+2h as summer time, not GMT+1h and GMT+2h as indicated in the

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Rob Kimberley
to correct me if I'm wrong here. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Magnus Danielson Sent: 17 March 2009 19:20 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Loran-C French Clocks

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread John Ackermann N8UR
Magnus, at least as of 2000, GMT was still the legal time in the UK, though it doesn't have a technically accurate definition any more. A bill in 1997 attempted to change UK time to UTC, but it died in Parliament. There's some discussion of this at pages 93-94 of a book that was recommended

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Jean-Louis Oneto
in UTC... Have a nice day, Jean-Louis Oneto Grasse - France - Original Message - From: Magnus Danielson mag...@rubidium.dyndns.org To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Tuesday, March 17, 2009 7:27 PM Subject: Re: [time-nuts] Loran-C French

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Lux, James P
-Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Ralph Smith Sent: Tuesday, March 17, 2009 12:05 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Loran-C French Clocks Not exactly the case

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Bill Hawkins
Looks like the original post in this thread was a troll, as in fishing for bites. Anybody know this guy? Bill Hawkins -Original Message- From: Rich and Marcia Putz Sent: Monday, March 16, 2009 5:55 PM Hi all; Gov't got to save that money for executive bonuses! Also, would anyone

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Arnold Tibus
and frequency measurement time-nuts@febo.com Sent: Tuesday, March 17, 2009 7:27 PM Subject: Re: [time-nuts] Loran-C French Clocks Arnold, I therefore cannot see any problem is with France, but we have the need to define more precise and stable reference time from where we can then measure

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread John Ackermann N8UR
I can vouch for Rich -- he's been on the list for a long time. John Bill Hawkins said the following on 03/17/2009 06:33 PM: Looks like the original post in this thread was a troll, as in fishing for bites. Anybody know this guy? Bill Hawkins -Original Message- From:

Re: [time-nuts] Loran-C French Clocks

2009-03-17 Thread Alan Melia
: Re: [time-nuts] Loran-C French Clocks UTC is the accepted international standard, but GMT appears to be steadfastly held onto by the UK (especially Government departments). I believe that GMT is actually by definition UTC_NPL, i.e. NPL contributes to UTC, but will have a small local offset

[time-nuts] Loran-C French Clocks

2009-03-16 Thread Rich and Marcia Putz
Hi all; Gov't got to save that money for executive bonuses! Also, would anyone like to speculate when France finally accepted UTC? Rich ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] Loran-C French Clocks

2009-03-16 Thread Richard W. Solomon
Never ?? 73, Dick, W1KSZ -Original Message- From: Rich and Marcia Putz rp...@bnin.net Sent: Mar 16, 2009 6:54 PM To: time-nuts@febo.com Subject: [time-nuts] Loran-C French Clocks Hi all; Gov't got to save that money for executive bonuses! Also, would anyone like to speculate when

Re: [time-nuts] Loran-C French Clocks

2009-03-16 Thread Bill Hawkins
According to Wikipedia (a handy way to avoid speculation), international agreement was reached in 1960. See http://en.wikipedia.org/wiki/Coordinated_Universal_Time UTC is a compromise between the French and British initials. Bill Hawkins -Original Message- From: Rich and Marcia Putz

Re: [time-nuts] Loran-C French Clocks

2009-03-16 Thread Lux, James P
-Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Bill Hawkins Sent: Monday, March 16, 2009 4:33 PM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Loran-C French Clocks According

[time-nuts] LORAN-C update....

2009-03-12 Thread wa1zms
Just noticed this.FYI Not sure how this fits in with eLORAN efforts. The Operating Status of LORAN-C LORAN-C provides coverage for maritime navigation in U.S. coastal areas. It provides navigation, location, and timing services for both civil and military air, land and marine users.

[time-nuts] LORAN-C discontinuation in US

2009-03-12 Thread John Ackermann N8UR
Just saw that the 2010 Federal budget says that LORAN-C stations operated by the US Coast Guard (isn't that all of them in the US?) will be shut down sometime after the end of the 2009 fiscal year: http://www.navcen.uscg.gov/loran/default.htm The last I'd heard, it sounded like LORAN-C was safe

Re: [time-nuts] LORAN-C discontinuation in US

2009-03-12 Thread Poul-Henning Kamp
In message 49b9476c.2070...@febo.com, John Ackermann N8UR writes: Just saw that the 2010 Federal budget says that LORAN-C stations operated by the US Coast Guard (isn't that all of them in the US?) will be shut down sometime after the end of the 2009 fiscal year:

Re: [time-nuts] LORAN-C discontinuation in US

2009-03-12 Thread Don Latham
This is the washington monument budget ploy. For example, the Park Service is told to come up with a budget plan. The PS says to save $ we'll close the Washington Monument, the public recoils from this idea, congress funds it. It's a dangerous process, 'cause congress can call the bluff. But if we

Re: [time-nuts] LORAN-C discontinuation in US

2009-03-12 Thread Stanley Reynolds
Found this : Funding provided in Coast Guard Operating Expenses account   Congress is funding the e-loran from the Coast Guard's money no wonder they don't like it, would be different if the earmark was funded with new money. change xx to tt

Re: [time-nuts] LORAN-C discontinuation in US

2009-03-12 Thread Stanley Reynolds
More info here: hxxp://www.insidegnss.com/node/551 (change xx to tt , sorry many ads on this linked site) Since 1999, Congress has allocated $160 million to begin the eLORAN improvements, according to a presentation by USCG Capt. Curt Dubay to the U.S. Space-Based PNT Executive Committee

[time-nuts] Loran C Life Extension

2008-02-10 Thread Stan
Not a lot of details. Maybe some business opportunities. Stan, W1LE 036-2008-SC127-DIST.pdf Description: Adobe PDF document ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] LORAN-C antenna

2007-11-14 Thread Poul-Henning Kamp
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In message [EMAIL PROTECTED], Didier Juges writes: ); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Poul, I should have remembered, as I now recall seeing your page (duh!), thanks!!! Do you know the

Re: [time-nuts] LORAN-C antenna

2007-11-14 Thread Poul-Henning Kamp
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In message [EMAIL PROTECTED], Didier Juges writes: ); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY OK, thanks for the useful information . I thought you might have resonated the loop to get some filtering

Re: [time-nuts] LORAN-C antenna

2007-11-14 Thread Didier Juges
of precise time and frequency measurement Subject: Re: [time-nuts] LORAN-C antenna A loop antenna is more or less flat until the stray capacitance of the loop windings take it down. I put a low-pass filter which cuts around 300-500 kHz on this one, because I have a MW transmitter at 1062 kHz

[time-nuts] Loran-C Receivers

2007-11-14 Thread Stan W1LE
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hello The Net: Are there more modern Loran-C receivers than the Austron 2100 series ? Purpose is for frequency comparison to E13 or better and timing to UTC. Stan, W1LE FN41sr Cape Cod z

Re: [time-nuts] Loran-C Receivers

2007-11-14 Thread Brooke Clarke
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Stan: GPS is the preferred method. For Loran-c the SRS F700 is probably the best current production receiver. Would be good for use in urban canyons or other places where a good GPS signal is not available.

Re: [time-nuts] Loran-C Receivers

2007-11-14 Thread Tom Van Baak
Hello The Net: Are there more modern Loran-C receivers than the Austron 2100 series ? Purpose is for frequency comparison to E13 or better and timing to UTC. Stan, W1LE FN41sr Cape Cod There are also vintage Austron 2000 model(s). But the 2100-series is a better buy if you can find

Re: [time-nuts] LORAN-C antenna

2007-11-14 Thread Max Robinson
@febo.com Sent: Wednesday, November 14, 2007 2:24 AM Subject: Re: [time-nuts] LORAN-C antenna In message [EMAIL PROTECTED], Didier Juges writes: ); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Poul, I should have remembered, as I now recall seeing your page (duh!), thanks

Re: [time-nuts] LORAN-C antenna

2007-11-13 Thread Rob Kimberley
2007 03:02 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] LORAN-C antenna ); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hello Didier, I am using a commercial active whip antenna, McKay-Dymek model DA100A. It is outside on a tripod, about 12

Re: [time-nuts] LORAN-C antenna

2007-11-13 Thread Carl Walker
That last shot looked a little better. It's a tough thing to see on an SA - being just groups of pulses. It takes max-hold a little while to build things up with a digital display. -Carl On Mon, 2007-11-12 at 22:23 -0600, Didier Juges wrote: ___

Re: [time-nuts] LORAN-C antenna

2007-11-13 Thread Carl Walker
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Bill is correct - 10V should do it; these couplers were fed DC up the coax with ~10mH of choke from a circuit that could detect whether the load of the amplifier was present or shorted (essentially open and short DC antenna

Re: [time-nuts] LORAN-C antenna

2007-11-13 Thread John Ackermann N8UR
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Didier Juges said the following on 11/12/2007 10:48 PM: I have tried to listen with my HP 3586 and my 80 meter antenna (which is actually about 20m long and 50 feet up at one end, 30 feet up at the other end), but I have

Re: [time-nuts] LORAN-C antenna

2007-11-13 Thread John Ackermann N8UR
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Didier Juges said the following on 11/12/2007 11:02 PM: ); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY I get this (see picture) with the spectrum analyzer and my wire antenna. That looks a lot

Re: [time-nuts] LORAN-C antenna

2007-11-13 Thread Dan Rae
Didier Juges wrote: Is it possible to build a Loran antenna? Yes. For my Austron 2100 I built an active ferrite rod antenna which works very well. Much better than an active rod since by using the magnetic field component, it rejects a lot of the local interference (tv timebases and

Re: [time-nuts] LORAN-C antenna

2007-11-13 Thread Poul-Henning Kamp
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In message [EMAIL PROTECTED], Dan Rae writes: I filled a ferrite rod (from an old BC receiver) with a bifilar winding of wire wrap wire, parallel C to resonate at 100 kHz and the center tap grounded. For Loran-C too much

Re: [time-nuts] LORAN-C antenna

2007-11-13 Thread James Maynard
] To: 'Discussion of precise time and frequency measurement' time-nuts@febo.com Subject: [time-nuts] LORAN-C antenna Speaking of Loran, I have an old Loran receiver (origin forgotten) and no antenna. Is it possible to build a Loran antenna? I understand Loran uses narrow pulses of 100 kHz, so

[time-nuts] LORAN-C

2007-11-12 Thread wa1zms
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Stan's comments below about his noted errors between LORAN GPS that range from E10 to E13 each day remind me of the similar errors that I have observed. I had originally attributed them to ground-wave vs. sky-wave propagation

Re: [time-nuts] LORAN-C

2007-11-12 Thread John Ackermann N8UR
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY For what it's worth, I've never felt that the frequency error display on the 2100 series was all that reliable, even when you use the longest averaging time. When I've used LORAN for frequency measurement, I hook an A/D on the

[time-nuts] LORAN-C antenna

2007-11-12 Thread Didier Juges
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Speaking of Loran, I have an old Loran receiver (origin forgotten) and no antenna. Is it possible to build a Loran antenna? I understand Loran uses narrow pulses of 100 kHz, so the antenna must have sufficient bandwidth to

Re: [time-nuts] LORAN-C antenna

2007-11-12 Thread John Ackermann N8UR
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY You're probably pretty close to the Jupiter, Florida station. A piece of wire will probably do the trick. John Didier Juges said the following on 11/12/2007 07:11 PM: ); SAEximRunCond expanded to false Errors-To:

Re: [time-nuts] LORAN-C antenna

2007-11-12 Thread Mike Niswonger
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY DJ, Actually, you are closest to the Malone, FL LORAN, about 30 miles due south of Dothan, AL. They run 800kW into a 700 foot monopole array. For more info see http://www.uscg.mil/d8/lorstamalone/default.asp . --Mike

Re: [time-nuts] LORAN-C antenna

2007-11-12 Thread Daun Yeagley
] On Behalf Of Mike Niswonger Sent: Monday, November 12, 2007 7:59 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] LORAN-C antenna ); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY DJ, Actually, you are closest to the Malone, FL LORAN, about

Re: [time-nuts] LORAN-C antenna

2007-11-12 Thread Carl Walker
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY You can build your own LORAN-C antenna coupler without too much trouble. A lifetime or so ago, I was one of the analog design team at the company that made Northstar LORAN-C receivers for marine and aircraft navigation. The

Re: [time-nuts] LORAN-C antenna

2007-11-12 Thread Stan W1LE
Hello Didier, I am using a commercial active whip antenna, McKay-Dymek model DA100A. It is outside on a tripod, about 12' to the base. Very broadband and omnidirectional. I use for VLF RX on 137 and 185 KHz as well as RX during HF FMTs. A resonant magnetic loop antenna may have enough bandwidth,

Re: [time-nuts] LORAN-C antenna

2007-11-12 Thread christopher hoover
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Is it possible to build a Loran antenna? Sure. There are plenty of plans out there or LF, mostly loops, diamonds, squares and E-probes. Try google. If that doesn't work, I'll chase down the set of links I have. I built a

Re: [time-nuts] LORAN-C antenna

2007-11-12 Thread Didier Juges
PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Daun Yeagley Sent: Monday, November 12, 2007 7:51 PM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] LORAN-C antenna Didier, that ought to be just about in your back yard!! I did some consulting for one

Re: [time-nuts] LORAN-C antenna

2007-11-12 Thread Didier Juges
the tower :-) Didier KO4BB -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Carl Walker Sent: Monday, November 12, 2007 8:31 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] LORAN-C antenna You can build your

Re: [time-nuts] LORAN-C antenna

2007-11-12 Thread Didier Juges
:[EMAIL PROTECTED] On Behalf Of Didier Juges Sent: Monday, November 12, 2007 10:02 PM To: [EMAIL PROTECTED]; 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] LORAN-C antenna I get this (see picture) with the spectrum analyzer and my wire antenna. That looks a lot

Re: [time-nuts] LORAN-C antenna

2007-11-12 Thread WB6BNQ
of precise time and frequency measurement Subject: Re: [time-nuts] LORAN-C antenna You can build your own LORAN-C antenna coupler without too much trouble. A lifetime or so ago, I was one of the analog design team at the company that made Northstar LORAN-C receivers for marine and aircraft

Re: [time-nuts] LORAN-C

2007-11-12 Thread Brooke Clarke
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi: Here is a plot from 0 to 200 kHz that shows LORAN-C, WWVB and the interfering military RTTY stations. http://www.prc68.com/I/Images/AMRAD_BT.GIF Ext Ref is the GPS locked PRS10 Rb. Have Fun, Brooke Clarke

Re: [time-nuts] LORAN-C

2007-11-12 Thread Poul-Henning Kamp
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In message [EMAIL PROTECTED], [EMAIL PROTECTED] writes : Can someone confirm that the E10 to E13 errors are typical of the 2100F? And what ultimate long-term stability have others been able to achieve using LORAN as a

Re: [time-nuts] LORAN-C antenna

2007-11-12 Thread Poul-Henning Kamp
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In message [EMAIL PROTECTED], Didier Juges writes: ); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Speaking of Loran, I have an old Loran receiver (origin forgotten) and no antenna. Is it possible to

Re: [time-nuts] LORAN-C

2007-11-12 Thread M. Warner Losh
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In message: [EMAIL PROTECTED] Poul-Henning Kamp [EMAIL PROTECTED] writes: : Can someone confirm that the E10 to E13 errors are typical : of the 2100F? And what ultimate long-term stability have others : been able to

Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)?

2007-07-30 Thread Magnus Danielson
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY From: Rob Kimberley [EMAIL PROTECTED] Subject: Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)? Date: Thu, 26 Jul 2007 10:59:46 +0100 Message-ID: [EMAIL PROTECTED] If Galileo flies

Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)?

2007-07-30 Thread Poul-Henning Kamp
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In message [EMAIL PROTECTED], Magnus Danielson writes: ); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY From: Rob Kimberley [EMAIL PROTECTED] Subject: Re: [time-nuts] LORAN-C Programmatic environmental

Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)?

2007-07-26 Thread Magne Mæhre
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] Magnus Danielson skrev: Norway is very close to close up operation as I understand it. It runs on extended time. The operation of the four Norwegian stations has been extended to the end of 2009. The Ministry of Fisheries and

Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)?

2007-07-26 Thread Rob Kimberley
If Galileo flies! Rob -Original Message- From: Magnus Danielson [EMAIL PROTECTED] To: time-nuts@febo.com; [EMAIL PROTECTED] Sent: 26/07/07 00:37 Subject: Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)? ); SAEximRunCond expanded to false Errors-To: [EMAIL

Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)?

2007-07-26 Thread Poul-Henning Kamp
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In message [EMAIL PROTECTED], =?UTF-8?B?TWFnbmUgTcOmaHJl?= writes : I suspect that only when we have an operational Galileo (or a similar system), will Norway shut down the 4 stations. Absent even more irrational politics than

Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)?

2007-07-25 Thread Peter Vince
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] The situation in Europe is just as uncertain. Germany, Denmark and Norway announced a couple of years ago that they intend to turn off their stations, leaving just France (2 stations) and the UK (no stations at the time)

Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)?

2007-07-25 Thread Magnus Danielson
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] From: Peter Vince [EMAIL PROTECTED] Subject: Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)? Date: Wed, 25 Jul 2007 11:38:37 +0100 Message-ID: [EMAIL PROTECTED] ); SAEximRunCond expanded to false

[time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)?

2007-07-24 Thread Brooke Clarke
Hi: I've received a letter from the navigation office of the USCG that's a notice intent to conduct a PEIS in accordance with: National Environmental Policy Act of 1969 and, Dept of Homeland Security Management Directive 5100.1 and, USCG Commandant's Instruction M1475.1D (related to

Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)?

2007-07-24 Thread Bill Beam
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] On 7/24/2007 5:40:31 PM, Brooke Clarke ([EMAIL PROTECTED]) wrote: Hi: I've received a letter from the navigation office of the USCG that's a notice intent to conduct a PEIS in accordance with: National Environmental Policy Act

Re: [time-nuts] LORAN-C Programmatic environmental Impact Statement (PEIS)?

2007-07-24 Thread Rex
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] On Tue, 24 Jul 2007 18:23:48 -0800, Bill Beam [EMAIL PROTECTED] wrote: On 7/24/2007 5:40:31 PM, Brooke Clarke ([EMAIL PROTECTED]) wrote: Hi: I've received a letter from the navigation office of the USCG that's a notice intent

[time-nuts] Loran-C

2007-06-04 Thread Enrico Rubiola
Dear all, the old good Loean-C is still alive, as I can see. There is a funny thing about the receiver. The case of loran signal is that of finding the zero-crossings in a very polluted signal. The receivers designed in the '80s use a 1bit ADC (hard limiter) sampling at some 10 MHz, and find

Re: [time-nuts] Loran-C

2007-06-04 Thread Poul-Henning Kamp
In message [EMAIL PROTECTED], Enrico Rubiola w rites: It has been demonstrated that in the case of detecting the zero crossings in highly polluted signals, if the hard limiter is used instead of the full resolution of an ideal ADC (infinite number of bits), the SNR is made worse by less than 2

Re: [time-nuts] LORAN-C and the SDR-IQ

2007-01-20 Thread Brooke Clarke
Hi: There's a new Software Defined Radio by RF Space, makers of the SDR-14, called the SDR-IQ. The two key differences are that the new radio will tune down to something like 500 Hz (that's NOT kHz, but Hz) and so will work for LORAN-C and other low end stuff. The -IQ model has a 190 kHz

[time-nuts] Loran-C ICs

2007-01-02 Thread Brooke Clarke
Hi: I found a Loran-C circuit from 1984 done by Ralph Burhans that uses the MC1350 Video-IF amplifier and the MC1357 Sound-IF amp and Quadrature detector, but these are no longer available. Does anyone know of replacement parts? The circuit appears in Low-Frequency Receiving Techniques,

Re: [time-nuts] Loran-C ICs

2007-01-02 Thread Poul-Henning Kamp
In message [EMAIL PROTECTED], Brooke Clarke writes: Hi: I found a Loran-C circuit from 1984 done by Ralph Burhans that uses the MC1350 Video-IF amplifier and the MC1357 Sound-IF amp and Quadrature detector, but these are no longer available. Does anyone know of replacement parts? The circuit

Re: [time-nuts] Loran-C ICs

2007-01-02 Thread Brooke Clarke
Hi Poul: I'm trying to make a micro controller based unit, not a PC type. So there's much less horsepower available. That's why I like the envelope detector by Burhans. An email from Dave Mills indicated that you had one of his ISA card receivers but that a 12 bit PCI version would be

Re: [time-nuts] Loran-C ICs

2007-01-02 Thread Poul-Henning Kamp
In message [EMAIL PROTECTED], Brooke Clarke writes: Hi Poul: I'm trying to make a micro controller based unit, not a PC type. So there's much less horsepower available. That's why I like the envelope detector by Burhans. An email from Dave Mills indicated that you had one of his ISA card

Re: [time-nuts] Loran-C ICs

2007-01-02 Thread Hal Murray
I'm trying to make a micro controller based unit, not a PC type. So there's much less horsepower available. What size FFT do you need and what rate? If you can scale things to use integers, an ARM7 can do 256 or 512 point FFTs every 10 ms. -- These are my opinions, not necessarily my

Re: [time-nuts] Loran-C ICs

2007-01-02 Thread Poul-Henning Kamp
In message [EMAIL PROTECTED], Hal Murr ay writes: I'm trying to make a micro controller based unit, not a PC type. So there's much less horsepower available. What size FFT do you need and what rate? FFT's doesn't help Loran-C reception at all. -- Poul-Henning Kamp | UNIX since Zilog

Re: [time-nuts] Loran-C ICs

2007-01-02 Thread John Day
Funny you should ask, we had to get some of these to replenish spares stock in a client site for some gear we built YEARS ago. The MC1357P is available as the NTE708 (around $7.25 each it seems) and the MC1350P is an NTE746. The next generation of that design (the MC1350P as okay in TV's, but

Re: [time-nuts] Loran-C ICs

2007-01-02 Thread John Miles
:[EMAIL PROTECTED] Behalf Of John Day Sent: Tuesday, January 02, 2007 4:40 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Loran-C ICs Funny you should ask, we had to get some of these to replenish spares stock in a client site for some gear we built YEARS

Re: [time-nuts] Loran-C ICs

2007-01-02 Thread John Day
Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of John Day Sent: Tuesday, January 02, 2007 4:40 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Loran-C ICs Funny you should ask, we had to get some of these to replenish

[time-nuts] loran C searchlight station

2006-07-05 Thread tom jones
Did anyone notice lorsta searchlight (chain 9940) drift on the 4th of july 2006 at approximately 0715am pdt my 2100f showed a phase gain of 150ns that seemed to corect itself by 0930 pdt. This also happened june 7th 2006 at approximately 1400 pdt with a phase shift 180ns and was

Re: [time-nuts] Loran-C Austron

2006-04-20 Thread Brooke Clarke
Hi Rob: What happened to Austron? Brooke Clarke, N6GCE -- w/Java http://www.PRC68.com w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml http://www.precisionclock.com Rob Kimberley wrote: No, LORAN is most definitely not dead. Good news, as I used to sell LORAN-C timing from

Re: [time-nuts] Loran-C Austron

2006-04-20 Thread John Day
Austron was a Datum Company, so I assume it is now Symmetricon? John At 05:45 PM 4/20/2006, you wrote: Hi Rob: What happened to Austron? Brooke Clarke, N6GCE -- w/Java http://www.PRC68.com w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml http://www.precisionclock.com Rob

[time-nuts] Loran-C question

2006-04-02 Thread asmagal
Greetings from a newcomer in Portugal. I can receive here some stations of the Lessay (6731) chain with a surplus Austron 2000C Loran-C receiver. The Xray station (Soustons) is the strongest, of course. However, because the LSD of the above GRP is not zero, I need to change two old boards on my

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