Re: [time-nuts] Fwd: FE-5680A Contact FEI

2012-02-16 Thread Mike McCauley
Hmmm, Seems they dont realise that their lack of cooperation will lead, not to protecting their product, but rather to the massive, public reverse engineering of it? On Friday, February 17, 2012 05:43:49 PM Gerald Molenkamp wrote: > I have written to them on several occasions about 56 > > Sen

[time-nuts] Fwd: FE-5680A Contact FEI

2012-02-16 Thread Gerald Molenkamp
I have written to them on several occasions about 56 Sent via Gerald's iPad Begin forwarded message: > From: Peter Gottlieb > Date: 16 February 2012 10:58:10 AEDT > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] FE-5680A Contact FEI > Reply-To: n...@verizon

Re: [time-nuts] FE-5680A firmware dump

2012-02-16 Thread Mike McCauley
El 07/02/2012 0:30, Elio Corbolante wrote: > From: "Steve ." > >> I've been considering ripping the firmware from the mcu as well. I've not >> got beyond the consideration stages, but i have all the equipment here at >> work. When you say that the read option is not available. is this because >> t

Re: [time-nuts] nanoseconds in the news

2012-02-16 Thread bownes
There was a system in NJ with over 3000 ps2s in a supercomputer config. The financial industry's idea of high cost is a bit different than most. The price of your real time ticker feed from the exchanges is directly proportional to the associated network latency due to speed of light. Bob

Re: [time-nuts] nanoseconds in the news

2012-02-16 Thread Tom Knox
EndRun set up the system next door to the NYSE used by GS. I think EndRun has a white paper on their site describing the ultimate in insider trading systems. It has been the subject of a number of articles and a whistle blowers case. Some believe it was responsible for a 1000 point "glitch" sev

Re: [time-nuts] nanoseconds in the news

2012-02-16 Thread J. Forster
Frankly, I think the rapidity of the financial system is not a good thing. It encourages the kind of speculation on Wall Street that more properly belongs in Las Vegas. It has bred the demands for ever increasing quarter-over-quarter results that result in cooking of the books and so on that deter

Re: [time-nuts] nanoseconds in the news

2012-02-16 Thread Neville Michie
Obviously no one is thinking big enough. A hyper-super computer on either side of the Atlantic could run a model of each of the stock markets which could be synchronised by frequent data transfer. The learning power of these models would be very great, and they could deliver a real-time estima

Re: [time-nuts] nanoseconds in the news

2012-02-16 Thread Peter Monta
> Time is money... I wonder if long-distance neutrino links might be attractive to the financial community. The SNRs are currently way too low, but with aggressive engineering, a link through the Earth would shave off many, many milliseconds (even at not greater than the speed of light :-) ). The

[time-nuts] 3048A software question

2012-02-16 Thread SAIDJACK
Hello team, I am trying to get an HP 3048A system up and running, and I am having problems with enabling spec limit lines on the graph. I can enter the spec line data under the "manipulate results" then "spec lines" menu, but the lines I entered are not visible. There are the standard spe

Re: [time-nuts] FS: HP Z3801A

2012-02-16 Thread Brad Stockdale
All, I am to the point where I am interested in selling one of my HP Z3801A GPSDO's. In the past when I mentioned possibly selling one or two of my Z3801A's, I was asked to offer them to the list first before I put them on eBay or anything of the sort. I'd like to see it go to someone who

Re: [time-nuts] FE-5680A Question

2012-02-16 Thread Bob Camp
Hi The sweep range on the LPRO is similar to the sweep range on the FE. The resonance on the FE may be wider than the LPRO. The cells are similar in size, so I would *guess* the Q's would be similar. The short term plots (good unit vs good unit) look a lot alike, which also would argue for a simil

Re: [time-nuts] FE-5680A Question

2012-02-16 Thread Bob Camp
Hi The sweep range on the LPRO's is very similar to the sweep range on the FE's. They both run the VCXO over a very wide range compared to the width of the Rb resonance. They both also have to accommodate VCXO temperature performance and aging. Bob -Original Message- From: time-nuts-bo

[time-nuts] nanoseconds in the news

2012-02-16 Thread Tom Van Baak
Time is money... http://www.wired.com/wiredscience/2012/02/high-speed-trading/ /tvb ___ 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] Testing a LPRO RB

2012-02-16 Thread Azelio Boriani
Now it is clear: you at first wrote US patent 7,711,230: > > For some information on how to do that have a look at > Analog Devices > > application note AN-1002 and at the there mentioned US patent US > > 7,711,230. but it is US 6,711,230. On Thu, Feb 16, 2012 at 2:23 PM, Ulrich Bangert wrote:

Re: [time-nuts] Testing a LPRO RB

2012-02-16 Thread Ulrich Bangert
Nicholls et al are mentioned and they hold the patent as shown in the attached pic... > -Ursprungliche Nachricht- > Von: time-nuts-boun...@febo.com > [mailto:time-nuts-boun...@febo.com] Im Auftrag von Azelio Boriani > Gesendet: Donnerstag, 16. Februar 2012 13:35 > An: Discussion of precis

Re: [time-nuts] Testing a LPRO RB

2012-02-16 Thread Azelio Boriani
There is no mention in the AN1002 (GPS disciplined Stratum 2 clock) of the US patent 7,711,230 and that patent (on optical waveguides) has no mention of temperature correction or tempco extraction... On Thu, Feb 16, 2012 at 8:55 AM, Ulrich Bangert wrote: > Mark, > > > John DuBois and I did > > qu

Re: [time-nuts] Oscilloquartz 5240

2012-02-16 Thread Robert Jameson
I have a copy... Are you still interested? Regards, R ___ 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] GPS fade out, Sat/Sun

2012-02-16 Thread Jim Palfreyman
Lightsquared doing their final test run... Jim ___ 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] FE-5680A Contact FEI

2012-02-16 Thread Rob Kimberley
I used to work for one of their subsidiaries, and yes, I agree entirely with what you say Don! Rob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Don Latham Sent: 16 February 2012 02:59 To: n...@verizon.net; Discussion of precise time

Re: [time-nuts] FE-5680A Contact FEI

2012-02-16 Thread Rob Kimberley
Unfortunately FEI are very reluctant to provide anything but the basic specs on their products. Company policy. Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Bill Riches Sent: 15 February 2012 23:24 To: 'Discussion of

Re: [time-nuts] GPS fade out, Sat/Sun

2012-02-16 Thread Hal Murray
Here is a graph to follow up that event. http://www.megapathdsl.net/~hmurray/time-nuts/Dropout-Feb-11-12-2012.png The green/red lines on the bottom are the good/bad results from the GPRMC sentence each second. The blue/purple lines on top are the number of satellites. "good" means it had a n