Re: [time-nuts] Schematic capture, anyone?

On Thu, Feb 23, 2012 at 10:52 PM, Charles P. Steinmetz wrote: > I've been using LTspice for schematic capture and simulation at home.  Will > the PCB CAD tools being discussed (Eagle, DesignSpark, FreePCB, etc.) import > netlists from LTspice?  Or do folks prefer to do the schematic capture in a >

Re: [time-nuts] Schematic capture: KiCad?

I've also used KiCAD. The inability to do 100x160mm Eurocards on the free version of Eagle was the killer for me. I also have a british program called EasyPC.   Robert G8RPI. From: beale To: Discussion of precise time and frequency measurement Sent: Friday, 2

Re: [time-nuts] Schematic capture, anyone?

I've been using LTspice for schematic capture and simulation at home. Will the PCB CAD tools being discussed (Eagle, DesignSpark, FreePCB, etc.) import netlists from LTspice? Or do folks prefer to do the schematic capture in a CAD tool and export that netlist to LTspice for simulation? Best

Re: [time-nuts] Schematic capture, anyone?

Hi Jim, for many years (over 20) I have used protel (now altium) autotrax- not that I am recommending it to you, but it is a very simple and intuitive program to use and I base my opinion of all the others on it. All the more modern ones I have tried are, for the most part, from fairly, to extremel

Re: [time-nuts] Lady Heather on low power CPU/Linux?

On Thu, 23 Feb 2012 15:50:00 -0800, John Miles wrote: >> I still haven't seen the source of LH or serial.exe , any hints ? > > server.cpp and the rest of the Heather sources are in the same directory > as the .exe, normally c:\program files\heather or c:\program files > (x86)\heather. (You basic

Re: [time-nuts] Schematic capture: KiCad?

In case you haven't already had enough suggestions: KiCad is an open-source option. It is much less popular/well known than Eagle, but it is free, has no* limitations on layers, parts, or board size. Runs on Linux and Windows. All design files are in plain text format, hence easy to parse by eye

Re: [time-nuts] Schematic capture, anyone?

I used Eagle for years, but can't say I really warmed to it. I recently changed to DipTrace. Their pricing model seems to work better for me (large but sparse boards in Eagle require $$$ license) as it's based on pin count, not board size. It's really hard to quantify usability, but I no longe

Re: [time-nuts] Schematic capture, anyone?

> I'll add another vote for Eagle. It is a German program written in > Unix, and ported to Windows. Therefore, you select the action > first then click on the object of the action. It takes some getting > used to. There has been a pattern of PC layout companies getting > cobbled up leaving you

Re: [time-nuts] Schematic capture, anyone?

> > > Jim Hickstein said the following on 02/23/2012 07:38 PM: > > What do people use these days for schematic capture (and just possibly > > PCB layout), for low-budget homebrew stuff? It's been so long since I > > did this, I still own a T-square and a pile of contemporary relics like > > ru

Re: [time-nuts] Schematic capture, anyone?

I mostly use Target3001: http://server.ibfriedrich.com/wiki/ibfwikien/index.php?title=Main_Page It's commercial, but there are six different editions starting as low as 59€, with digital+analog, schematics, PCB, autorouting, simulation, it's multilingual (German/English/French), and there is eve

Re: [time-nuts] Schematic capture, anyone?

Bruce, You are not alone. After 20 years of OrCAD, currently using 9.1, I agree completely. Eagle just seemed...weird. (I should add that I'm a RPN calculator fan - where one chooses data before selecting the operator.)  That said, I will probably learn to use Eagle, as that seems to be the dar

Re: [time-nuts] Schematic capture, anyone?

I favor ExpressPCs free schematic generation and board layout But Now I have a whole new list to go looking for. More time-nuts trouble ahead. Regards Paul On Thu, Feb 23, 2012 at 8:36 PM, Bruce Lane wrote: > Good eve, > >I must be the exception... I've tried Eagle, most recently abou

Re: [time-nuts] Schematic capture, anyone?

Good eve, I must be the exception... I've tried Eagle, most recently about three months back. I can't stand it. I find it, for my purposes, to be about as intuitive as a Salvador Dali painting. I've not yet tried DesignSpark, but it looks very promising. Personally, I u

Re: [time-nuts] 5061's on ebay

Hello to the group. I have to agree with Joe on the addiction. I was the one asking strange questions about 8 months ago as I glued together the Frankenstein of 5061s. It used a tube that was given to me by a fellow time-nut that was bad that however actually had a few more fumes of CS then my 004

Re: [time-nuts] Schematic capture, anyone?

Hi, Comments on their downloads page indicate that it runs under Wine. I havent tried it though. Cheers. On Thursday, February 23, 2012 05:18:06 PM Chris Albertson wrote: > On Thu, Feb 23, 2012 at 5:09 PM, Elio Corbolante wrote: > > DesignSpark PCB: http://www.designspark.com/knowledge/pcb > >

Re: [time-nuts] Schematic capture, anyone?

Jim Hickstein wrote: > What do people use these days for schematic capture (and just possibly PCB > > worse, I prefer ANSI logic symbology over shovels-and-spades (or, really, > over > plain rectangles where you're expected to know what the part number > means). > I'll add another vote for Eagle.

Re: [time-nuts] Schematic capture, anyone?

On Thu, Feb 23, 2012 at 5:09 PM, Elio Corbolante wrote: > DesignSpark PCB: http://www.designspark.com/knowledge/pcb > Being free and having no limitations like Eagle This looks interesting but the download is a .exe file for Windows Does anyone know if it works with Wine? Yes I know I could tr

Re: [time-nuts] FE-5680A Schematics and scans

Amazing teamwork and effort. Thanks for your hard work. Regards Paul On Thu, Feb 23, 2012 at 8:02 PM, Elio Corbolante wrote: > Thanks to Ignacio (EB4APL) and the generosity of Mike Harrison, today I > received a PCB of a disassembled FE5680A. > I provided to make some scans of the board at 2400D

Re: [time-nuts] Schematic capture, anyone?

DesignSpark PCB: http://www.designspark.com/knowledge/pcb Being free and having no limitations like Eagle, I think you can try it... ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-

Re: [time-nuts] Schematic capture, anyone?

There are a bunch of choices, some free and some limited to working with a certain PCB shop, but I like Eagle (http://www.cadsoftusa.com) because, among other things, it's cross-platform running on Windows, Mac, and Linux (I use the Linux version). There's a free version and a couple of steps

[time-nuts] FE-5680A Schematics and scans

Thanks to Ignacio (EB4APL) and the generosity of Mike Harrison, today I received a PCB of a disassembled FE5680A. I provided to make some scans of the board at 2400DPI resolution: the picture size is about 7700x11500 pixel (9MB) Top face (with and without ICs):

Re: [time-nuts] Schematic capture, anyone?

On Thu, Feb 23, 2012 at 4:46 PM, wrote: > Nowadays you can simply download the design software for free from the fab > houses. Yes, but in many cases these have problems like (1) They save the design in a format that forces to to use ONLY that fab house to make the PCB. You really, really want

Re: [time-nuts] OT - Portable Digital 'scope

Ops, yes, 2MHz is a little narrow. 20MHz is better... On Fri, Feb 24, 2012 at 1:28 AM, Attila Kinali wrote: > On Thu, 23 Feb 2012 17:53:49 -0600 > David wrote: > > > How do modern DSOs handle that? I guess it would explain why I have > > been told their front end calibration is so arduous. If

Re: [time-nuts] Schematic capture, anyone?

On Thu, Feb 23, 2012 at 4:38 PM, Jim Hickstein wrote: > What do people use these days for schematic capture (and just possibly PCB > layout), for low-budget homebrew stuff? "Eagle" is popular. It is a commercial product but there is a free version that limits you to "smallish" PCBs. If you out

Re: [time-nuts] Schematic capture, anyone?

Eagle all the way. It's free and the documentation is good enough to get you by. There is a huge hobbiest following as well if you get stuck. Definitely read the tutorial on creating parts. It'll be nearly impossible to wing. The free version has some limits. 80mmx100mm boards, 2 layers, and

Re: [time-nuts] Schematic capture, anyone?

Nowadays you can simply download the design software for free from the fab houses. Try PCB 123 from sunstone.com Good shop, reasonable prices for quick protos. bye, Said In a message dated 2/23/2012 16:39:12 Pacific Standard Time, j...@jxh.com writes: What do people use these days f

Re: [time-nuts] Schematic capture, anyone?

Jim... There is a free package called Eagleware that you might find suitable. Or maybe it is just Eagle; it's been a while. A little quality time with Google should find it for you easily. It is for Windows, but there might be a Mac version as well. Tom Holmes, N8ZM Tipp City, OH EM79 > -O

[time-nuts] Schematic capture, anyone?

What do people use these days for schematic capture (and just possibly PCB layout), for low-budget homebrew stuff? It's been so long since I did this, I still own a T-square and a pile of contemporary relics like rules and triangles. I'll get out my pencil sharpener if I have to. But really,

Re: [time-nuts] OT - Portable Digital 'scope

On Thu, 23 Feb 2012 17:53:49 -0600 David wrote: > How do modern DSOs handle that? I guess it would explain why I have > been told their front end calibration is so arduous. If you lose the > calibration constants somehow, you might as well throw the > oscilloscope away. Do any support user rec

Re: [time-nuts] OT - Portable Digital 'scope

If the bandwidth is really limited to 2 MHz, that is a rise and fall time of 175ns. Some of those PPS signals are barely wider than that. On Thu, 23 Feb 2012 22:26:47 +0100, Azelio Boriani wrote: >Yes, in my opinion the connectors are MCX and I totally agree with Attila >about the 20MHz limit.

Re: [time-nuts] OT - Portable Digital 'scope

Switched gain stages mean the bandwidth and transient response before the ADC is going to change with different sensitivities unless both are significantly limited which apparently is the case. How do modern DSOs handle that? I guess it would explain why I have been told their front end calibrati

Re: [time-nuts] Lady Heather on low power CPU/Linux?

> I still haven't seen the source of LH or serial.exe , any hints ? server.cpp and the rest of the Heather sources are in the same directory as the .exe, normally c:\program files\heather or c:\program files (x86)\heather. (You basically end up with a copy of my development directory in that fold

Re: [time-nuts] OT - Portable Digital 'scope

I own one of these that I bought directly from Seeed Studios. Seeed also sells some very inexpensive MCX-BNC females for use with these as well as 1x-10x probes with mcx connectors. I have had their single channel version (DSO Nano) for a while and have found it handy. The DSO Quad has a consid

Re: [time-nuts] OT - Portable Digital 'scope

> Actually, undersampling does use the alias effect to bring down the RF > carrier. That is, the direct sampling radio concept cannot avoid the > aliasing: it is exploited to avoid, for example, to sample a 2GHz carrier > modulated with a 20MHz signal with a 4Gsample/second ADC (by the way, does >

Re: [time-nuts] OT - Portable Digital 'scope

Sampling oscilloscopes and digital storage oscilloscopes that support equivalent time sampling do this very thing. My Tektronix 2230 with a 20 MS/sec flash converter has a bandwidth of 100 MHz and a 2 GS/sec equivalent time sampling rate. A 7854 with a 500 kS/sec sampler (at 10 or 11 bits) and is

Re: [time-nuts] OT - Portable Digital 'scope

On 2/23/12 2:22 PM, Azelio Boriani wrote: Actually, undersampling does use the alias effect to bring down the RF carrier. That is, the direct sampling radio concept cannot avoid the aliasing: it is exploited to avoid, for example, to sample a 2GHz carrier modulated with a 20MHz signal with a 4Gsa

Re: [time-nuts] OT - Portable Digital 'scope

On Thu, Feb 23, 2012 at 2:22 PM, Azelio Boriani wrote: > Actually, undersampling does use the alias effect to bring down the RF > carrier. That is, the direct sampling radio concept cannot avoid the > aliasing: it is exploited to avoid, for example, to sample a 2GHz carrier > modulated with a 20MH

Re: [time-nuts] OT - Portable Digital 'scope

Actually, undersampling does use the alias effect to bring down the RF carrier. That is, the direct sampling radio concept cannot avoid the aliasing: it is exploited to avoid, for example, to sample a 2GHz carrier modulated with a 20MHz signal with a 4Gsample/second ADC (by the way, does it exist?)

Re: [time-nuts] Portable Digital 'scope (actual BW: 2 MHz)

For what it's worth: "The DSO203 is good to about 1 MHz to 2 MHz, after that signals get very rounded. This is caused by the analog path, not by the digital sample rate. " http://forums.parallax.com/showthread.php?127201-New-%28DSO203%29-portable-oscilloscope!/page2 > ---Original Message--

Re: [time-nuts] Neutrinos not so fast? (defective connector)

Björn, time-nuts-boun...@febo.com wrote on 02/23/2012 04:53:06 PM: > From: b...@lysator.liu.se > To: "Discussion of precise time and frequency measurement" > > Date: 02/23/2012 04:53 PM > Subject: Re: [time-nuts] Neutrinos not so fast? (defectove connector) > Sent by: time-nuts-boun...@febo.co

Re: [time-nuts] OT - Portable Digital 'scope

On 2/23/12 1:25 PM, Robert LaJeunesse wrote: FWIW Rigol pushes their 40MHz Analog Devices part to 100 MHz without any problem (seen in eevblog teardown). Yes it's sort of cheating, but if the part works fine because all of the suppliers parts now yeild that fast due to an improved process well, i

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

> > A possible mechanism occurs to me. High-precision GPS is very vulnerable > to multipath errors. A loos connector will have a significant reflection. > The reflected energy will propagate backwards, and be reflected off the > transmitter output discontinuity, the twice-reflected energy propaga

Re: [time-nuts] Lady Heather on low power CPU/Linux?

On Thu, 23 Feb 2012 12:55:22 -0800, John Miles wrote: > > If you use server.exe running on a PC motherboard (or port it to an > embedded controller of some sort), you can log on to the Thunderbolt and > control it from up to 8 different clients. Depending on what the > serial-to-Ethernet convert

Re: [time-nuts] OT - Portable Digital 'scope

Yes, in my opinion the connectors are MCX and I totally agree with Attila about the 20MHz limit. Nice toy to just take a look at low speed signals, for example GPSDOs 10MHz and PPS, serial lines and so on. On Thu, Feb 23, 2012 at 9:49 PM, Attila Kinali wrote: > On Thu, 23 Feb 2012 20:01:18 -

Re: [time-nuts] OT - Portable Digital 'scope

FWIW Rigol pushes their 40MHz Analog Devices part to 100 MHz without any problem (seen in eevblog teardown). Yes it's sort of cheating, but if the part works fine because all of the suppliers parts now yeild that fast due to an improved process well, it saves a few dollars / quid / drachma...

Re: [time-nuts] Lady Heather on low power CPU/Linux?

Hi ...bring up server.exe on a NET4501 running off a cheap flash card. Bob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of John Miles Sent: Thursday, February 23, 2012 3:55 PM To: 'Discussion of precise time and frequency measurement'

Re: [time-nuts] Lady Heather on low power CPU/Linux?

> This setup makes me able to connect LH from any machine to a TB. > But only one active connection is allowed at a time. > > So in practice i'm running the 2 x LH against the TB's on the mail-server. > And "VNC to the mailserver" if i want to see the LH's. If you use server.exe running on a PC m

Re: [time-nuts] OT - Portable Digital 'scope

On Thu, 23 Feb 2012 20:01:18 - "Rob Kimberley" wrote: > I'm looking at Item: 300658066641 on EBay, and wanted to know if anyone in > the group had any experience of this product. I know this is way off topic, > but as a group it's nice to know what's out there and possibly useful in our > mut

Re: [time-nuts] OT - Portable Digital 'scope

On 2/23/2012 12:32 PM, Robert LaJeunesse wrote: Looks interesting, but... 1) The probe connectors are not the usual BNC. Are they anything common? 2) No mating cables or connectors provided for channels 3,4, and function generator output. 3) Function generator output will have significant DC bia

Re: [time-nuts] OT - Portable Digital 'scope

Hi It looks like the connectors are MCX. It's a normal / low cost 50 ohm coax connector. You see them on some GPSDO's. Bob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Robert LaJeunesse Sent: Thursday, February 23, 2012 3:32 PM To:

Re: [time-nuts] OT - Portable Digital 'scope

Looks interesting, but... 1) The probe connectors are not the usual BNC. Are they anything common? 2) No mating cables or connectors provided for channels 3,4, and function generator output. 3) Function generator output will have significant DC bias and no anti-aliasing. 4) Does not appear to be

Re: [time-nuts] OT - Portable Digital 'scope

Lots of info here http://www.seeedstudio.com/forum/index.php On 23.02.2012 14:01, Rob Kimberley wrote: I'm looking at Item: 300658066641 on EBay, and wanted to know if anyone in the group had any experience of this product. I know this is way off topic, but as a group it's nice to know what's o

Re: [time-nuts] OT - Portable Digital 'scope

Two things that jumps out is they have the schematic on the listing and the price. Thomas Knox > From: robkimber...@btinternet.com > To: time-nuts@febo.com > Date: Thu, 23 Feb 2012 20:01:18 + > Subject: [time-nuts] OT - Portable Digital 'scope > > I'm looking at Item: 300658066641 on EB

[time-nuts] OT - Portable Digital 'scope

I'm looking at Item: 300658066641 on EBay, and wanted to know if anyone in the group had any experience of this product. I know this is way off topic, but as a group it's nice to know what's out there and possibly useful in our mutual hobby. Thanks for reading. Rob Kimberley _

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

I'm sure are all aware that in the general perceptions of the world, there are great scientific achievements and disastrous engineering failures. Never the other way around. Yeah, I'm an engineer. Tom Holmes, N8ZM Tipp City, OH EM79 > -Original Message- > From: time-nuts-boun...@febo.co

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

It is hard to believe that they would go public with such earth shaking results based on a single GPS timebase, but I have found it is easy to focus on the test head and neglect the back end of an experiment. I must also admit it is even worse science for someone sitting in Boulder Co like myse

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

A possible mechanism occurs to me. High-precision GPS is very vulnerable to multipath errors. A loos connector will have a significant reflection. The reflected energy will propagate backwards, and be reflected off the transmitter output discontinuity, the twice-reflected energy propagating back

Re: [time-nuts] 5680 performance very first impressions, update

Update.. The unit has been running continuously since my last test. I collected approx 10 hours of data last night and the Adev is slightly better now. (Approx 1.5 thru 2.0 E-12 from 100 thru 400 seconds. At 2,000 seconds the Adev is approx 2.6E-12) I also noticed that the unit is qu

Re: [time-nuts] Lady Heather on low power CPU/Linux?

On Wed, 22 Feb 2012 23:26:09 +0100, Achim Vollhardt wrote: > Fellow Time-Nuts, > I am trying to run LH on an Alix 3D3 single-board PC: > > http://www.pcengines.ch/alix3d3.htm > > Being only a 500 MHz Geode CPU, there is not much power to work with. > Still, running Debian Linux with Wine allowed

Re: [time-nuts] Neutrinos not so fast? (defectove connector) - new approach

Hi Back in the long ago, processing was expensive. Much of what we do goes back to that era and paradigm. A bidirectional loop with smarts on both ends would make a lot of sense today. Spend $5 on each end and you can be sure of what's going on. Yell to higher authority if something didn't look

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

A transformer or differential signaling would also have the virtue of allowing easy galvanic isolation to prevent ground loops. Fiber optic and line receivers often set their switching threshold using a positive and negative peak detector. The same design works very well for analog peak to peak a

Re: [time-nuts] CCD lock detection

Thanks for your insights Bruce, I think I worded my thoughts badly. The fiber would be in addition to, not replacing the photocell. It would feed a CCD for display purposes only, although perhaps in the future if the concerns you brought up were addressed the CCD could also act as photocel. Th

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

To square a sine 10MHz you can use a 4:1 transformer with the center tap: connect the tap to GND and use a differential line receiver (ADM485, MAX485) connected to the differential signal that comes out from the transformer. The input of the transformer receives the single ended sine 10MHz. On Thu

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

And by using a differential pair is like halving the rise time: when one arm rises the other falls, effectively doubling the speed of the crossing and the sharpening of the trigger event. Sort of auto_ schmitt_trigger... On Thu, Feb 23, 2012 at 3:45 PM, Azelio Boriani wrote: > I recommend the dif

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

On 02/23/2012 03:36 PM, Jim Lux wrote: On 2/23/12 6:24 AM, Alberto di Bene wrote: On 2/23/2012 1:04 AM, Poul-Henning Kamp wrote: I simply don't buy the story that tightening the connector makes a consistent 60 nanoseconds difference on a signal. I spoke with a physicist of Cern, friend of the

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

I recommend the differential pair: here the trigger have to sense the crossing of the two signals and this crossing is well definite. On Thu, Feb 23, 2012 at 3:36 PM, Jim Lux wrote: > On 2/23/12 6:24 AM, Alberto di Bene wrote: > >>On 2/23/2012 1:04 AM, Poul-Henning Kamp wrote: >> >> I simply

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

Am 23.02.2012 15:24, schrieb Alberto di Bene: On 2/23/2012 1:04 AM, Poul-Henning Kamp wrote: I simply don't buy the story that tightening the connector makes a consistent 60 nanoseconds difference on a signal. I spoke with a physicist of Cern, friend of the leader of the team that p

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

On 2/23/12 6:24 AM, Alberto di Bene wrote: On 2/23/2012 1:04 AM, Poul-Henning Kamp wrote: I simply don't buy the story that tightening the connector makes a consistent 60 nanoseconds difference on a signal. I spoke with a physicist of Cern, friend of the leader of the team that perf

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

On 2/23/2012 1:04 AM, Poul-Henning Kamp wrote: I simply don't buy the story that tightening the connector makes a consistent 60 nanoseconds difference on a signal. I spoke with a physicist of Cern, friend of the leader of the team that performed the Opera experiment. He told me that t

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

Thanks Azelio, so let's wait for domani ;-) , Arnold Am 23.02.2012 15:12, schrieb Azelio Boriani: Yes, this doesn't mean the results are necessarily wrong but only questionable. Too bad we have to wait until May to know the "damage" extension on the observed results. Here in Italy, unfortunat

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

Yes, this doesn't mean the results are necessarily wrong but only questionable. Too bad we have to wait until May to know the "damage" extension on the observed results. Here in Italy, unfortunately and as usual, the announcement was distorted by our media today: now Einstein is the winner as much

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

Just for completeliness I was pointed to this information: http://www.nature.com/news/flaws-found-in-faster-than-light-neutrino-measurement-1.10099 Arnold Am 23.02.2012 12:21, schrieb Azelio Boriani: I have found the official CERN director's words: (from Marco URLs) Ecco l’annuncio del Dirett

Re: [time-nuts] 5061's on ebay

The Ion Pump I is measured as a voltage across a resistor in the +3500 VDC supply in the return path from ground. This supply is capable of providing only a small amount of current and will collapse to zero volts if overloaded. Likewise, it can fail for a number of reasons, due primarily to it's

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

I have found the official CERN director's words: (from Marco URLs) Ecco l’annuncio del Direttore del CERN: The OPERA collaboration has informed its funding agencies and host laboratories that it has identified two possible effects that could have an influence on its neutrino timing measurement. The

Re: [time-nuts] 5061's on ebay

The ion pump current at 0 is not good. At work they bought an FTS4065B without telling me before: instead of a very old FTS4065, there is an already working PRS50. Anyway if the ion currect is 0 check the HV generator first. Check this http://www.ke5fx.com/cs.htm on how to try to reactivate the ion

Re: [time-nuts] CCD lock detection

If and only if you want to reduce the SNR substantially. A typical glass fibre will capture insufficient light to be useful compared to the standard arrangement using a photocell. Plastic fibres are not usable as the temperature in the vicinity of the absorption cell is too high. Bruce Tom Kn

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

Hi Javier, On 02/23/2012 09:42 AM, Javier Serrano wrote: So please stay tuned for proper information. That's all I can say for now. Which is more or less all you should say. I agree fully with you. From a scientific point of view, all we have heard is indications, but it needs to be verified

Re: [time-nuts] Neutrinos not so fast? (defectove connector)

On Wed, Feb 22, 2012 at 11:26 PM, Poul-Henning Kamp wrote: > 20m of extra fiber sounds *much* more plausible. > > Inventing an excuse about a loose connector to cover up the mistake > sounds even more plausible. > > You really don't want to defend your phd dissertation, being known > as the idiot