Re: [time-nuts] Line Voltage - USA
Another one of those fascinating "threads!" I have lived through the claimed 110, 117 and 120 volt periods and have been apparently lucky enough to not have suffered any device damage. At present I live on a hill and do worry about lightning strikes to ham radio antennas. The last time I counted I had over 20 standard eight foot plated ground rods driven at various places and the entrance point of these antennas to the house is protected by an additional 6 rods. All wiring in the house is either thin wall tubing or other armored cable. Thus I effectively have building perimeter protection as well. All grounds are tied together along with the power neutral. I also have an automatic transfer backup alternator with separate ground also tied to the entire system. I do disconnect antennas during storm threats but in the past thirty years have yet to have any "over voltage" damage. From time to time I do check the line voltage but not with any NBS standard voltmeter and have found that it does "drift" between 120 and 126 which I feel is outstanding given the general circumstances which include being several miles from the distribution point along a rural road and the possibility of some fairly demanding motor starting loads that I deal with. My input panel is over 200 ft. from the farmer's electric co-op transformer which I used to share with two neighbors but now I have "my own." Yes, I do have lightning rod protection. 73 Lee K9WRU - Original Message - From: Poul-Henning Kamp To: Discussion of precise time and frequency measurement , Chuck Harris Sent: Mon, 02 Jan 2017 12:55:58 -0500 (EST) Subject: Re: [time-nuts] Line Voltage - USA In message <586a8b40.4050...@erols.com>, Chuck Harris writes: >Back in the dark ages of ~220V electrical distribution systems in >Europe, the reaping due to unintentional grounding of a ~220V wire >was so common and extreme, whole house ground fault interrupters >were mandated for all residential/small business power systems >therein. Close, but no cigar. The main problem was that in many countries outlets did not have a protective ground terminal. That meant that an internal fault in your appliance had a 50/50 chance of lighting up some exterior metal part you could touch. The "obvious solution" isn't obvious in countries where the geography does not allow you to obtain proper "protective ground". Norway being a good example. But even countries with the "obvious solution" of protective ground in all outlets saw problems, because it took 10-16 ampere misdirected current to blow the fuse, and you can light most flameable stuff with a lot less energy than that. The "Residual Current Device" solved both problems. RCD's even protect you from internal faults where proper protective ground is not available, by providing neutral from "outside" the RCD as PG in the installation. You'll still be (horribly!) exposed of an accident in the distribution grid (or lightning!) fires up the neutral, but that's simply life - or death - without a grounding rod. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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. ___ 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] magnetic electronic components
You might also find Doug DeMaw's book "Ferromagnetic Core Design & Application Handbook" to be of interest. 73 Lee K9WRU - Original Message - > On Mon, Jun 22, 2015 at 3:02 PM, Attila Kinali wrote: Hi, I was looking up some stuff and realized (again) that I don't know anything about how magnetic electronic components (inductors/solenoids, transfomers, baluns, ferrite beads...) work. Yes, I can calculate the inductance, I know how to get from the AL value to number of windings. But I don't know anything about the practical issues or where they come from. Unfortunatelly, this knowledge seems to generally rare among EEs (at least everyone I asked in the last couple of years) and books about it are either long out of print (with no pdf available) or more geared towards the physics student. So, does anyone have any recomendation where I could read up on this? Books, pdfs, webpages,... anything. Also something that covers more the application side, ie how to use ferrite beads/toroids to build devices, would be appreciated. Thanks in advance Attila Kinali -- I must not become metastable. Metastability is the mind-killer. Metastability is the little-death that brings total obliteration. I will face my metastability. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see its path. Where the metastability has gone there will be nothing. Only I will remain. ___ 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. ___ 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. ___ 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] D term (was no subject)
I'm fairly sure that Jim is right. I never had to worry about PID machine control before the late sixties and by the mid-seventies the concepts were firmly in place and in use. It certainly was the appearance of solid state industrial controls which made it all possible. And those ideas have made possible some system performance that I recall as being impossible only a few years earlier. Lee Mushel - Original Message - From: "Jim Lux" To: "Poul-Henning Kamp" ; "Discussion of precise time and frequency measurement" Sent: Monday, January 26, 2015 8:21 AM Subject: Re: [time-nuts] D term (was no subject) On 1/26/15 5:55 AM, Poul-Henning Kamp wrote: In message <54c5a270.7090...@earthlink.net>, Jim Lux writes: And there's decades, if not centuries, of experience with P, PI and PID controllers in a practical sense. Not quite a century I belive: Only the advent of electronics formalized the theory and developed the practice. Almost all mechanical "governors" er pure P. Maxwell strikes again http://upload.wikimedia.org/wikipedia/commons/b/b1/On_Governors.pdf definitely more than P controllers.. cups with liquid (Siemens governor), nonlinear mechanisms, etc. ___ 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. ___ 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] HOW WE GOT TO NOW WITH STEVEN JOHNSON | "Time" AnInside Look | PBS
Well, there is no mention of precision or time measurement. Seems like a simple, harmless presentation to me. I will admit that from "time to time" my wife does object to some of his work! We do watch "Frontline" and are grateful for many of the topics they cover. Lee A. Mushel - Original Message - From: "Brooke Clarke" To: "Discussion of precise time and frequency measurement" Sent: Saturday, October 25, 2014 12:51 PM Subject: [time-nuts] HOW WE GOT TO NOW WITH STEVEN JOHNSON | "Time" AnInside Look | PBS Hi: I don't have TV and wonder if anyone who has PBS can comment on this program? preview at: https://www.youtube.com/watch?v=RhDvGhFbpq8 -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html ___ 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. ___ 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] Z38xx rack mounts
Dave, I, too, hate piles of dumb little boxes. So when the Z3801 appeared I went on line, bought some sheet aluminum of appropriate thickness, cut a "panel sized" piece, drilled a few holes with an appropriate twist drill to allow the start of a hacksaw and then finished the clearance hole for the 3801 with a file. I supported the 3801 with some aluminum extrusion angle stock and then painted the whole she-bang with paint to match my stuff. And lo, no dumb little box, and it fits a standard 19 inch rack perfectly. If you send me an email address I will send a photo. Lee - Original Message - From: "Dave M" To: "FEBO Time Nuts" Sent: Wednesday, October 22, 2014 2:44 PM Subject: [time-nuts] Z38xx rack mounts I have a couple questions regarding the Z38xx type units. I have a Z3801A, and a couple other modules that don't need a full 19" rack space. The Z38xx units are 11" wide (10-9/16" mounting centers) , and obviously are not suitable for a standard 19" rack cabinet. ___ 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] Is a crystal likely to change frequency by 3% ?
Interesting topic! Of course I no longer wear a watch since such a habit after advancing well into retirement seems pointless but I did want to point out that perhaps you could include the Bulova Accutron in your studies. Long ago I fell on ice and landed on my wrist with the result that my space model accutron never ran again . But a year ago I asked my wife where it was and she produced it which was then entrusted to a local horologist who studied it and said he couldn't get the parts to repair it. But after he had "examined it" I found that it did, indeed, start running again--for a time. But then it stopped and I gave up since others skilled in the art simply wanted more for a repair than I wanted to give. But I will still admit that from time to time a watch is a good thing and I find that the seven dollar models I can buy today keep time much better than the old Accutron ever did! Encouraging regards, Lee - Original Message - From: "Alexander Pummer" To: "Discussion of precise time and frequency measurement" Sent: Saturday, September 13, 2014 6:44 AM Subject: Re: [time-nuts] Is a crystal likely to change frequency by 3% ? there is only one magnet, which drives the fastest moving arm -- the pointer for the seconds -- the other arms are connected via gears, by the way that case with the weak periodically recovering battery is an observed one, I connected a paper chart recorder to the clock and recorded the battery voltage change and the driver pulses of the magnet -- the recorder was not able to follow the individual pulses, but the envelope 73 Alex ___ 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] WWVB for Time Nuts
Jeeze, Brooke, I wish you hadn't brought up the possible patenting of Time Delay Beam steering antennas! I wonder if my highly esteemed SDR radio which I think uses some such technology, is illegal? 73 Lee K9WRU - Original Message - From: "Brooke Clarke" To: "Discussion of precise time and frequency measurement" Sent: Saturday, August 09, 2014 5:20 PM Subject: Re: [time-nuts] WWVB for Time Nuts Hi: When I was in high school I built an oscilloscope from a kit made by Electronic Instrument Co. (EICO). AFAICR Dumont had some patent that the kit avoided. ARAIK you can build any patented device for you own use. The reason I like patents is that they explain many things that books avoid. Time delay beam steering antennas (frequency independent unlike phased array antennas) (Fenwick) are patented but even today not in antenna books. If you want to know what makes something a geodesic dome read the patent. I have a tall stack of books and none of them spell it out. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Jim Lux wrote: On 8/9/14, 12:56 PM, Bob Camp wrote: Hi Keep in mind that the patent(s) do not keep you from building a part for your own use. AS I understand it, this is not technically true. You can practice the patent to gain an understanding of it for the purposes of inventing something new that is based on that patent, or to design around it. But you can't practice it, just because it's useful. If I patent, oh, let's say, a swing consisting of a board (of an exotic, but readily available, composite material) hanging from a tree limb with two rods (of another exotic, but readily available material), you cannot go out and build that swing in your backyard for your kids to play on. You can, however, build that swing and do testing on it, connecting load cells, motion tracking systems using real time kinematic GPS receivers, and carefully measure the variations in the period of the swing as the gravitational pull of the moon shifts, etc. Perhaps you are going to build a better swing, maybe using 3 ropes instead of 2 (since my patent attorney didn't write the claims well). Regardless of what they do / do not patent, a TimeNut can still build (and use for themselves) what ever they wish. Now, if you (after careful examination) believe that the privately held patents keep you from building a receiver for a Federally Funded service - talk to your elected representatives. They are the ones who can / will fire up a committee to look into this sort of stuff. I think I would want to have some information on license costs before I made that phone call though. precisely so 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. ___ 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. ___ 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] Local Solar Time Clock
Gosh, "Spring Wound" would be hard pressed for even sidereal time. I know I can't do that with my Atmos which is a definite step up from spring. Lee - Original Message - From: "Tom Van Baak" To: "Discussion of precise time and frequency measurement" Sent: Sunday, January 19, 2014 6:25 AM Subject: Re: [time-nuts] Local Solar Time Clock I wonder if you really need a special clock? Can't you adjust a normal spring driven clock to run fast (or is it slow?) by about 1/3 of a percent (one day per year)? This should be within the range of adjustment. ___ 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] New NTBW50AA
Don, Thanks for the suggestion! I have no doubt that you are correct and especially so at the moment of any "strike" or discharge. But these rods cover an area approximately 200 by 500 ft. and I don't find heavy cable "practical!" Feedline varies from the RG-58 you would expect to 7/8 inch Andrew (350'). Lee - Original Message - From: "Don Latham" To: "Discussion of precise time and frequency measurement" Sent: Sunday, September 15, 2013 3:54 PM Subject: Re: [time-nuts] New NTBW50AA Lee, if I can make a couple of comments, first, you can have large voltage differences among your 23 "ground" rods, depending on the ground terminus of the lightning strokes. Second, antennae and feed lines that do not attract lightning due to being "hidden" can still be subject to large induced voltages. I'd suggest all the ground rods and antenna bases be connected directly with large cable so they are all truly at the same ground potential... Don Lee Mushel Lightning is certainly one of Old Mother Nature's principal weapons as well as being extremely unpredictable. My House/Shack is on the side of a hill with the Antenna Farm on top of the hill about 120 yds away with an additional 30 ft. of elevation. There is a metal "lightning rod" extending high enough to provide a "cone of protection" for the house and is grounded directly. And there are five other metal antennas on that roof, two to a separate ground and three to still another which is close to the shack "ground field" which is three additional ground rods. All ground rods I mention are the standard 8 ft. copper plated steel items. Each of five antennas in the antenna field also have individual ground rods and I guess if you follow the cable shields you could say that they are all connected together.A couple of years ago I counted all ground rods and came up with 23. Before all of the metal was added and the "lightning rod" was the only metal extending about 20 ft. above the roof and we had an electrical storm my wife would complain that she could feel her hair trying to rise in response to the field coming from the cable which ran across the roof and at it's closest point was only 6-7 ft. from her head as the crow flies. But after all the additional metal was added in the form of antennas with grounds she no longer complained. I do not claim to understand what goes on around here at an elevation of about 102 ft. above the valley floor but I believe that we have been "fortunate" (or lucky if you prefer that word) and we have so much metal in the air that most "discharges" are not of the type that is accompanied by thunder! Two years ago we had a tree die that was no more than 30 ft. from the house. Since I have not always been able to accurately predict where trees will fall that I cut myself I hired a professional to take it down and he took one look at it, reached up and stripped off a piece of bark and commented, "See those lines? This tree was struck by lightning. That's what killed it!" But no lightning related damage to structure or equipment here for nearly 15 years! My only thought on the subject was that only a fool would fail to disconnect an antenna that rises above the house roof during an electrical storm. I freely admit that I have several ham radio VHF antennas (and a GPS antenna supplying the disciplined system for frequency reference) well below roof peak level (clear view to south for GPS, of course) that I do not disconnect from inexpensive radios maintained for the purpose. This is risk I accept. And I certainly have seen paths followed by lightning that are truly amazing! and horrendously damaging. Never forget that you only live once and you do have a perfect right to enjoy your hobby without fear. Regards, Lee A. Mushel K9WRU - Original Message - From: "quartz55" To: "Discussion of precise time and frequency measurement" Sent: Sunday, September 15, 2013 12:13 PM Subject: Re: [time-nuts] New NTBW50AA . I'm not thrilled having it above the beams, it's the highest metal thing in the area and most likely more prone to lightning than anything else excpet the trees and it will blow around a bit up there as well as rotating once in a while. I did have a strike here once, but it was down by the barn and was looking for the underground telephone cables, it blew apart a post and knocked off the boards, it was maybe 100 yards from the shack. It wouldn't be much of a problem to dig a tiny trench to the fence and I may try that after this precise survey is done, then do another and see if anything changes. I could hide it i n a bird box at the fence too. After all at this point I'm just playing. I'll eventually make up my mind. Also, I don't have an att
Re: [time-nuts] New NTBW50AA
Lightning is certainly one of Old Mother Nature's principal weapons as well as being extremely unpredictable. My House/Shack is on the side of a hill with the Antenna Farm on top of the hill about 120 yds away with an additional 30 ft. of elevation. There is a metal "lightning rod" extending high enough to provide a "cone of protection" for the house and is grounded directly. And there are five other metal antennas on that roof, two to a separate ground and three to still another which is close to the shack "ground field" which is three additional ground rods. All ground rods I mention are the standard 8 ft. copper plated steel items. Each of five antennas in the antenna field also have individual ground rods and I guess if you follow the cable shields you could say that they are all connected together.A couple of years ago I counted all ground rods and came up with 23. Before all of the metal was added and the "lightning rod" was the only metal extending about 20 ft. above the roof and we had an electrical storm my wife would complain that she could feel her hair trying to rise in response to the field coming from the cable which ran across the roof and at it's closest point was only 6-7 ft. from her head as the crow flies. But after all the additional metal was added in the form of antennas with grounds she no longer complained. I do not claim to understand what goes on around here at an elevation of about 102 ft. above the valley floor but I believe that we have been "fortunate" (or lucky if you prefer that word) and we have so much metal in the air that most "discharges" are not of the type that is accompanied by thunder! Two years ago we had a tree die that was no more than 30 ft. from the house. Since I have not always been able to accurately predict where trees will fall that I cut myself I hired a professional to take it down and he took one look at it, reached up and stripped off a piece of bark and commented, "See those lines? This tree was struck by lightning. That's what killed it!" But no lightning related damage to structure or equipment here for nearly 15 years! My only thought on the subject was that only a fool would fail to disconnect an antenna that rises above the house roof during an electrical storm. I freely admit that I have several ham radio VHF antennas (and a GPS antenna supplying the disciplined system for frequency reference) well below roof peak level (clear view to south for GPS, of course) that I do not disconnect from inexpensive radios maintained for the purpose. This is risk I accept. And I certainly have seen paths followed by lightning that are truly amazing! and horrendously damaging. Never forget that you only live once and you do have a perfect right to enjoy your hobby without fear. Regards, Lee A. Mushel K9WRU - Original Message - From: "quartz55" To: "Discussion of precise time and frequency measurement" Sent: Sunday, September 15, 2013 12:13 PM Subject: Re: [time-nuts] New NTBW50AA . I'm not thrilled having it above the beams, it's the highest metal thing in the area and most likely more prone to lightning than anything else excpet the trees and it will blow around a bit up there as well as rotating once in a while. I did have a strike here once, but it was down by the barn and was looking for the underground telephone cables, it blew apart a post and knocked off the boards, it was maybe 100 yards from the shack. It wouldn't be much of a problem to dig a tiny trench to the fence and I may try that after this precise survey is done, then do another and see if anything changes. I could hide it i n a bird box at the fence too. After all at this point I'm just playing. I'll eventually make up my mind. Also, I don't have an attic, so that's not an option. Dave N3DT ___ 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. ___ 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] Removing "goop" was: =>Re: 10811 Outer oven controller schematic
Gentlemen, In my home you will find a fair variety of common solvents. MEK, Toluene And Xylene will always be there. Of course, it is only fair to warn everyone that the common industrial manufacture of Toluene and Xylene do not remove all of the closely related (chemically) and universally recognized carcinogen. Therefore, use reasonable care and ventilation and not more than you have to. You can't expect the less harmful and more commonly used aliphatics like the alcohols, to remove the "tarry" stuff. And if you don't want to remove your desirable finishes you can go to the chlorinated solvents. But be warned that those are known to cause funny bumps and growths in you, too! But just in case I've scared you off I will finish with a statement that when I come in contact with poisonous plant material and begin to "itch" I simply take MEK or Toluene on a paper towel and use it to energetically remove the invisible "waxy" stuff that the plant uses to make sure the irritant stays in place and causes the misery of blisters and open sores! If you get this done in the itch stage and before the blisters appear you will be very pleasantly surprised! Even my daughter-in-law, who agrees with very little I say, admits I'm right about this! Regards, Lee Mushel - Original Message - From: "Don Latham" To: "Discussion of precise time and frequency measurement" Sent: Wednesday, July 31, 2013 11:12 PM Subject: Re: [time-nuts] Removing "goop" was: =>Re: 10811 Outer oven controller schematic I haven't found anything that really removes sticker glue without scarring the paint >> Xylene is availble as "goof-off" in paint departments. Graham This has been an interesting discussion on how to remove "goop" from stuff. I find that one or the other of the common methyl or ethyl alcohols is sufficient in many cases to remove "goop" and has proven to be quite safe on almost all surfaces. When one of the common alcohols doesn't work I resort to a product marketed by Circa 1850 under the name of Super DeGooper. The label says it "Removes these Goops: Oil Crayon, Tar, Marker, Gum, Labels, Shoe Polish, Adhesive, Duct Tape, Lipstick, Grease, stickers, Dried Latex Paint" but in my experience is quite effect on much, much more and is safe on most surfaces. The caution label indicates that it contains xylene. Works for me and when it doesn't I then resort to the much stronger lacquer thinner or acetone. All are flammable and are used carefully with adequate ventilation. And when all else fails, good old scraping is used. cheers, Graham ve3gtc On 13-07-31 11:15 AM, Rex wrote: I suspect by gas he meant gasoline. I don't know about what paint remover he meant but I have another suggestion that might have worked. For cleaning label gunk off of used test equipment I have used automotive bug and tar remover. Seems to loosen up lots of gunk but not so strong it hurts the panel paint and lettering. ___ 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. -- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." De Erroribus Medicorum, R. Bacon, 13th century. "If you don't know what it is, don't poke it." Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 Skype: buffler2 www.lightningforensics.com www.sixmilesystems.com ___ 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. ___ 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. -- "The power of accurate observation is commonly called cynicism by those who have not got it." -George Bernard Shaw Dr. Don Latham AJ7LL Six Mile Systems LLC 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 Skype: buffler2 www.lightningforensics.com www.sixmilesystems.com ___ 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. ___ 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] Spectrum Analyzer Suggestions
The SDR-IQ is certainly a great little receiver. Simon Brown's "SDR-Console" software satisfies my needs. Lee Mushel - Original Message - From: "Brooke Clarke" To: "Perry Sandeen" ; "Discussion of precise time and frequency measurement" Sent: Sunday, July 14, 2013 3:53 PM Subject: Re: [time-nuts] Spectrum Analyzer Suggestions Hi Perry: You might consider the SDR-IQ Software Defined Radio. This particular model is very capable and very reasonably priced. http://www.prc68.com/I/Bats.shtml#SDRIQ http://www.rfspace.com/RFSPACE/SDR-IQ.html 500 Hertz to 30 MHz coverage. Useable down to 100 Hz. Not as good as the HP 4395A which goes down to 10 Hertz with a true RBW of 1 Hz. http://www.prc68.com/I/4395A.shtml#SA Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Perry Sandeen wrote: List, I just purchased a HP 3585 spec analyzer on E bay for a reasonable price. I wanted this instead of the 181 series as the range was more to what I’d be using and it was of a newer vintage. The 3585a goes from 10 Hz to 40 MHz which is a most useful range for my purposes. so far, so good. The problem is I didn’t know the beast weighed a svelte 88 pounds! Double Hernia time! What I’d appreciate advice for a used spec analyzer in the $1,000 range that is at least much lighter. A smaller size would also be a benefit. I probably would never use it above 100 MHz. A slightly smaller screen would be OK. Suggestions appreciated. Regards, Perrier ___ 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. ___ 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. ___ 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] How dangerous if a Rb lamp broken?
I just tried calling your cell because you seem to be the "legitimate" person to ask. I don't read all the time-nuts postings but has anyone ever brought up the most logical aspect of ionizing radiation for the group: the radium dial wrist watch? or are they all too young to have experienced that? I think I got one for Christmas when I was 12 or 13. I'm still here at 74! I do think that all reflector's are at their best when they are entertaining---maybe not exactly on topic! Regards, Lee MushelI live about 20 miles from the Mississippi and 50 miles north of the Illinois border. We simply try to enjoy life, our garden, our flowers, our dogs and our cats. Best to stay away from neighbors and social media! - Original Message - From: "Mike Feher" To: "'Discussion of precise time and frequency measurement'" Sent: Wednesday, July 10, 2013 7:00 AM Subject: Re: [time-nuts] How dangerous if a Rb lamp broken? You must really be a "legend in your own mind", and now, a self-proclaimed "time-nuts" cop. - Mike B. Feher, EOZ Inc. 89 Arnold Blvd. Howell, NJ, 07731 732-886-5960 office 908-902-3831 cell ___ 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] How dangerous if Rb lamp broken?
I do agree with you, generally, on the topic of ionizing radiation and want to thank you for reminding me to check the batteries in my geiger counter! I do live with a nuclear power plant upwind from me and thus feel that maintenance of the instrument is desirable. And I do remember back in the "prehysteria" days when, in the middle of a mineralogy lecture, a second professor broke into the room with long tongs and removed a rock sample that had been used for identification and was known to be radioactive and quickly retreated with it. Until that moment any danger had not been considered. Not that the lesson did any good because I know that I have a rather large radioactive sample in our bedroom closet where it has peacefully resided for some twenty plus years. I would suggest that anyone who is actively looking for something to get excited about look into the packaging materials we use for our foods today! Sincerest best regards, Lee A. Mushel, K9WRU - Original Message - From: "Robert Atkinson" To: "Discussion of precise time and frequency measurement" Sent: Tuesday, July 09, 2013 5:49 AM Subject: Re: [time-nuts] How dangerous if Rb lamp broken? Hi Why are so many people radiophobic? As in ionising radiation. There are far more hazardous things in our hobby, electrocution and falling from a height be two of the big killers. I defy anyone to come up with a confirmed case of death caused by radiation as part of our hobby. Lead, solder flux, mercury, PCB's (the chemical in some caps and transformers) and cleaning solvents are all more harmful to our health. ___ 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] tube GPS receivers
Boy, are you bringing back memories and you made me look to see that my collection of odd old stuff wasn't damaged by the recent flooding we've had. I know that I have a "64" bit handwired memory board and I couldn't find that but did stir up a Fabri-Tek board that I think was 64 K but that was an entirely different generation. I did get to tour the SAGE system computer at Madison's Truax Field in 1958. They had the loudspeaker on so you could hear the computer work. A monster pile of vaccuum tubes! Lee K9WRU - Original Message - From: "Jim Lux" To: Sent: Sunday, June 23, 2013 7:44 PM Subject: Re: [time-nuts] tube GPS receivers On 6/23/13 10:47 AM, Chris Albertson wrote: Magnetic cores were not invented until the 1950's and realy cam into use as tubes were beibg replaced by SS. But there isnot reason yu can't build a tube computer with core memory. I have actually seen and used a computer that had one megabyte of core memory. The stuff was still in use in the late 1970s 1MB was a lot of RAM in 1975. ___ 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] OT - DC-10 gyros
Great to know there's someone around who loves complex electro-mechanical systems! I thought the population had dropped to zero! Regards, Lee - Original Message - From: "Bill Ezell" To: Sent: Wednesday, March 27, 2013 2:40 PM Subject: [time-nuts] OT - DC-10 gyros Well, I can come up with something topical, read on. :) I saw a 'Bendix yaw-rate gyro' on FleaBay recently for $14.50. Of course, I had to buy it. What I got was the yaw-rate gyro package from a Northwest Airlines DC-10 that was stripped for parts around 2000. The gyro included the pull tag with tail number, the license number of the A&P mechanic that pulled it, and some other cool stuff. What it turned out to really be is two gyros with two sets of electronics in one box about 6" x 2" x 5" box, all vintage '80s or so. Even better, it's a strapdown system. The actual gyro wheel is about the size of your thumbnail. I've just started tracing things out, and I've gotten the gyros to spin up. I really love mechanical gyros for some reason, too bad there's not a gyro-nuts group. I'm going to have great fun getting the package traced out and running. ___ 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] WWVB and Free Democracies Survival
Well, it could have been ELF whose Seafarer antenna was located at Clam Lake Wisconsin. My grandfather built a vacation cabin just north of Clam Lake and it was a big deal to visit the place. That was before the peaceniks were demonstrating since they didn't seem to want our submarines to do too much damage to Russia. I think that antenna was almost 30 miles long---don't quote me but it was an important component in the very low frequency communications system of the Navy.. Lee K9WRU - Original Message - From: "Don Latham" To: "Discussion of precise time and frequency measurement" Sent: Sunday, July 15, 2012 3:33 PM Subject: Re: [time-nuts] WWVB and Free Democracies Survival could be it... Don jmfranke Was it GWEN (Ground Wave Emergency Network)? When it was shut down, many of the transmitter sites were scheduled to be used as part of an inland LORAN system run primarily for the railroads. John WA4WDL -- From: "Don Latham" Sent: Sunday, July 15, 2012 12:53 PM To: "Discussion of precise time and frequency measurement" Subject: Re: [time-nuts] WWVB and Free Democracies Survival No you use a great number of tiny overlapping cells combined with spread spectrum and strong encryption and you control it with a some kind of self organizing mesh network, not a top-down control system. What this does is mimic nature. Think about rats and cockroaches Chris Albertson Redondo Beach, California There was (is?) a vlf system like this at one time, along with a buried cable system, cold-war projects. Can't remember what they were called, or present status. These things are kinda lost these days, like the original reason for the national interstate freeway system-transport of truck-mounted ICBMs'--taken over by the ICBM subs... Don -- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." R. Bacon "If you don't know what it is, don't poke it." Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com ___ 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. ___ 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. -- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." R. Bacon "If you don't know what it is, don't poke it." Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com ___ 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. ___ 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] Water Proof Vent
Well, remember that Tyvek is not a vapor barrier---that's what makes it so useful but if you're going to use it I suggest you review partial pressures and decide if the vapor movement is in the direction you want it! Lee - Original Message - From: "Brooke Clarke" To: "Discussion of precise time and frequency measurement" Sent: Tuesday, May 15, 2012 10:05 AM Subject: Re: [time-nuts] Water Proof Vent Hi: You might consider using a piece Tyvek material. You can get it free from the USPS in the form of a priority mailing envelope or at a construction site where it's used to warp the outside of houses. Passes water vapor and air but not water. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/Clarke4Congress.html ___ 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. ___ 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] Conformal Coating
Be careful! You have now introduced a "label" into the discussion that might trigger some vendor into thinking that you are looking for a UV Cured coating. And those things can be something you don't want to mess with. Back in the 70's when those coatings first appeared no one bothered to take note that they are very chemically reactive---they have to be since UV light is not a particularly agressive curing agent and to compensate for that UV "cured" (not simply something that fluoresces)materials tend to be stuff that you don't want to come in contact with. I can show you some places on my left hand that break into open sores today, some 35 years later. Today, no one doubts that they are carcinogens. Lee Mushel - Original Message - From: "Michael Blazer" To: Sent: Monday, May 14, 2012 8:51 PM Subject: Re: [time-nuts] Conformal Coating >> The Humiseal product also has a UV indicator in it that glows blue under a black light so you can check coverage. ___ 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.
[time-nuts] measure zero beat
David, I haven't been following this thread so I suppose it has already been answered, but how are you measuring "zero beat?" Lee Mushel - Original Message - From: "David I. Emery" To: ; "Discussion of precise time and frequency measurement" Sent: Monday, May 07, 2012 5:37 PM Subject: Re: [time-nuts] Oh dear On Mon, May 07, 2012 at 08:28:41AM -0700, J. Forster wrote: A crummy crystal oscillator zero beated to WWV is good to 1 in 10E6, a Rb disciplined to GPS maybe 1 in 10E11. Do you seriously think you, or anybody, can hear a pitch difference of 0.001 Hz in the audio range? A quartz crystal is plenty good for any audio application, IMO. -John I completely agree, and far more significant than accuracy is jitter (phase noise) in maybe the tenths of a Hz to thousands of Hz area. This does modulate the sampled sound and perhaps is perceptable at very low levels. BUT Cesium, or Rb buys nothing in respect to phase noise in those ranges... really good quality quartz oscillators have much better close in phase noise than many Rb's or Cesiums... What Cesium and Rb buy is good performance measured over much larger taus... which cannot possibly have any impact on human hearing. -- Dave Emery N1PRE/AE, d...@dieconsulting.com DIE Consulting, Weston, Mass 02493 "An empty zombie mind with a forlorn barely readable weatherbeaten 'For Rent' sign still vainly flapping outside on the weed encrusted pole - in celebration of what could have been, but wasn't and is not to be now either." ___ 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. ___ 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] Antenna restrictions [was Lucent 40 dB Antenna]
I have to compliment you on this idea! And I have been hiding/protecting electrical stuff inside PVC for 40 years. But planning ahead is better. In 1973 for our vacation time I deposited wife and sons with in-laws and went hunting for land. Bought this place for vacation land and retirement. Spent $350/acre for 65 acres. Retirement is now here. I have 13 acre former corn field hill top for antennas and paid taxes for what the Dept. of Revenue says is now worth $3,500/acre. Since I was smart enough to choose a chronically depressed area cost of living is about as low as you can get in the northern tier of states. And I don't have to worry about hiding my GPS antenna! I only wish I had started buying more numismatic gold earlier! If you have children, warn them now! Lee Mushel - Original Message - From: "Chris Albertson" To: "Discussion of precise time and frequency measurement" Sent: Sunday, April 15, 2012 12:13 AM Subject: Re: [time-nuts] Antenna restrictions [was Lucent 40 dB Antenna] On Sat, Apr 14, 2012 at 11:01 PM, Perry Sandeen wrote: Esteemed Time-nutters The religious answer. 1. Install antenna in as inconspicuous location as possible. A GPS timing antenna should fit INSIDE a 4" plumbing vent. The ABS plastic pipe will not effect the GPS signals. Some houses will have a 4" vent pipe, most will be smaller but it is easy to slip a larger diameter pipe over a small one. Buy a 30 inch length of 4" black ABS drain pipe and simply drop it on to of any smaller vent pipe. No one would ever notice and your plumbing system will not notice either. Chris Albertson Redondo Beach, California ___ 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. ___ 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] Thoughts on lightning protection measures....
Chuck, You and Atilla must be right! when the basement for my home was dug I pounded in four standard eight foot plated ground rods horizontally just a few inches above the concrete footing which means they're down nearly six feet. I happen to respect a lot of the ideas of my maternal grandfather so I also have what might be called a "classic" lightning rod system with appropriate ground rods. While I do not claim to have some of the suggested elements of a "ground field" I do have more than 20 additional grounding points that accompany my ham radio antennas. And I learned about the wisdom of having "home perimeter grounding" too late to install that but all wiring in the house is metallic: EMT, greenfield or BX. So I think I have some elements of that as well. Anyway, while my neighbors, also living on the hill, have lost numerous TV sets, etc. I have never had a single loss to what I could plainly see was lightning. Even though a tree less than 30 feet from the house took a direct strike which killed the tree! Whenever the power company appears for whatever reason they always check my "ground." They haven't complained yet! No, I'm no fool, when a storm is predicted or I hear the first faint thunder rumble all antennas and "sensitive stuff" power is disconnected. I've seen pieces of homes disappear when Old Mother Nature uses that particularly destructive tool of hers! Lee Mushel K9WRU - Original Message - From: "Chuck Harris" To: "Discussion of precise time and frequency measurement" Sent: Friday, April 13, 2012 7:14 AM Subject: Re: [time-nuts] Thoughts on lightning protection measures ___ 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] Holy cesium clock, Batman!
I am puzzled by this thread. In front of me on one side of the TV are three big ben alarm clocks. Two are quite old and one is a less than one year old Chinese knock-off. On the other side of the screen is my treasured 1960's Atmos which I think is in need of a re-charge. I am happy just as long as I see movement in that case. Behind me is a grandmother clock that I built in the 70's and which has a quite new German movement. It is off by one hour since that can be blamed on daylight savings time. None of these clocks display the correct time. I no longer bother to wear a wrist watch. I watch how complex all of your lives are and I can honestly say that I sit in retirement completely content and happy with my clocks. I suspect I am more lordly than most of you! Lee A. Mushel - Original Message - From: "Javier Herrero" To: Sent: Monday, April 09, 2012 9:23 AM Subject: Re: [time-nuts] Holy cesium clock, Batman! El 09/04/2012 16:59, Tom Knox escribió: I have heard the definition of a "Time Lord" is someone who has more then one clock and still knows what time it is. Thomas Knox No, no, is someone who know what time it is without needing a clock :) Regards, Javier ___ 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. ___ 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] establishing your position w/o gps
If you're looking for a really interesting topic to read about, the development of an accurate ship-board clock is really fascinating! And it wasn't done overnight! Lee K9WRU - Original Message - From: "Chris Albertson" To: "Discussion of precise time and frequency measurement" Sent: Tuesday, January 24, 2012 10:36 AM Subject: Re: [time-nuts] establishing your position w/o gps On Tue, Jan 24, 2012 at 3:16 AM, Attila Kinali wrote: On Tue, 24 Jan 2012 11:04:08 + "Poul-Henning Kamp" wrote: In message <20120124115848.312d60bd4fccce4f3e71c...@kinali.ch>, Attila Kinali w rites: >All this talk about telling the time using stars or the sun made me >wonder >how did people tell what position their telescopes had back in the days >before GPS? Sailingships and trade was what pushed this. ___ 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] metric / English
You might want to consider the possibility that there is a whole world of manufacturing that does not deal with millions of a single item. And prototypes are not part of the process. When a product life might extend over ten years and you can expect to get orders for two or three per year (you know there are products that cost tens of millions of dollars) then high volume is of much less interest. Of course, a single part might require a five axis machine and then things are again different. I vividly recall one sales visit when I was only 35 or 40, and still hadn't learned anything, and found that a very familiar product was still being manufactured in a room with a dirt floor. Lee - Original Message - From: "Chuck Harris" To: "Discussion of precise time and frequency measurement" Sent: Saturday, December 17, 2011 9:31 PM Subject: Re: [time-nuts] metric / English The manual machines are still in use for limited production runs, such as are used in prototype manufacture. Screw machines, and second op lathes see extensive use in manufacturing because they are quicker than CNC machines... that and very cheap to use. I use manual machines because it is quicker to whittle out a prototype chassis or do-dad on manual machines than it is to do a formal CAD drawing, and then work out the tool paths to do it on a CNC machine... and then find you have made it a mistake... wash rinse repeat... CNC machines are like printers. In theory they save time and materials, but in practice, they can burn time and waste materials like no human running a manual machine ever would. [As a tree farmer, who sells trees into pulp production, computers and printers have been a godsend. More trees go into paper production today then ever did before the advent of the "paperless" office.] -Chuck Harris Chris Albertson wrote: On Sat, Dec 17, 2011 at 4:48 AM, Chuck Harris wrote: Which works very well, but unlike all of the English thread combinations, you must keep the lathe's half-nuts engaged to the lead screw ALWAYS. That means when you reach the end of the thread, you must stop the lathe, and back it up to the beginning of the thread to make the next cut. That method always works. But another might. There will always be some integer number of pitches that get you back exactly without error. But it might be say 5 inches back so there is almost always a way to run only forward you method might be the best. But are people still using these old machines for production work? Chris Albertson Redondo Beach, California ___ 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. ___ 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. ___ 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] metric / English
Chris, You must be kidding! How old are you? Lee K9WRU - Original Message - From: "Chris Albertson" To: "Discussion of precise time and frequency measurement" Sent: Saturday, December 17, 2011 11:00 AM Subject: Re: [time-nuts] metric / English > But are people still using these old machines for production work? Chris Albertson Redondo Beach, California ___ 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. ___ 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] "The GPS navigation is the weakest point,"
Indeed, Francis! My first university level professor of mathematics was an Iranian and we have been teaching their students for more than a half century! They ain't dumb! 73 Lee K9WRU - Original Message - From: "Francis Grosz" To: Sent: Friday, December 16, 2011 10:15 AM Subject: Re: [time-nuts] "The GPS navigation is the weakest point," We forget this at our peril. Francis ___ 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] Am I the only Time Nut who doesn't wear a watch?
Javier shouldn't have been surprised! This level of understanding from the so-called smartest people who have ever lived, is quite common. Not too long ago I was checking the references of a young man who had just earned a master's degree in mechanical engineering. I was assured by one of his professors that "you can ask him to do just about anything." And when asked to analyze deflection of a beam he presented me with an 18 page mathematical analysis. A few weeks later I found him in the tool room with a puzzled expression on his face. "Do you have a question?" "Lee, how do they put threads on the inside of a hole?" Lee (the person who does have an HP3801 but who uses the average presented by three Big Ben Alarm clocks for "working" time) - Original Message - From: "bownes" To: "Discussion of precise time and frequency measurement" Cc: "Discussion of precise time and frequency measurement" Sent: Saturday, July 16, 2011 9:00 AM Subject: Re: [time-nuts] Am I the only Time Nut who doesn't wear a watch? I'd love to find a Smiths analogue clock to match the gauges in the dash of my old British car! On Jul 16, 2011, at 10:56, Michael Poulos wrote: On 7/10/2011 5:04 AM, Javier Herrero wrote: My car has an interior look similar to this: http://upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Jaguar_XKR_Convertible_interior.jpg/800px-Jaguar_XKR_Convertible_interior.jpg Time ago, I pick a young engineer (quite digitally oriented, may I say) to go somewhere. He saw the three gauges in the central console (oil pressure, analog clock, and battery), pointed to the center one (the clock) and asked me: "and what does this one measures?" I was quite surprised by the question... :) Put that bloke in the engineroom of a ship and he'd be COMPLETELY lost looking at the dash. :) ___ 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. ___ 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. ___ 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] Lightsquared goes Global...
Yes, but people are awfully dumb! They have no idea what you are talking about. They buy Kindles and watch movies on screens less than 60 inch diagonal measurement using sound systems that produce nothing but noise. They don't buy newspapers and never give a thought to the fact that unless their information is printed, it can be changed at will to suit any need required by people who are smarter than they are. We won't even mention what they do in the privacy of the voting booth! And I weep when I see those photos of great people who give their lives so that I can continue to live as I want. And, no, I didn't lose a cent during this latest economic madness which I'm sure is promoted by those who measure time in pips.. Lee Mushel - Original Message - From: "J. Forster" To: "Discussion of precise time and frequency measurement" Sent: Thursday, June 30, 2011 4:29 PM Subject: Re: [time-nuts] Lightsquared goes Global... If over-the-air TV were abolished, that would leave all broadcast media in the hands of Comcast and Verizon and their $100+ charges. It amounts to a communication tax on the entire population. -John = ___ 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] 60 Hz measurement party
Well, I guess my response to your invitation to comment won't be any worse than "pip" time. I live in a rural area where this so-called "stray voltage" was a problem for years. I guess no "real electrician" ever said anything because everyone was certain that a solution to such an obvious problem would be known to everyone "tomorrow." But it never happened! And this so-called "mystery" went on for years! And one day I got a phone call from my neighbor, "horse Bob" saying that his horses couldn't drink from the water tank. He was certain that they were receiving a "shock" as soon as their noses touched the water. I went down to his "paddock" and installed enough grounds to overcome the general lack of such on his property and then went home. The horses were drinking normally. A couple of hours later he called and said "the problem is back." A puzzled me went for another visit and discovered that he had removed all of my grounding provisions. When I asked him why he had done that I was informed that "those wires and rods are unsightly." Lee K9WRU - Original Message - From: "Robert LaJeunesse" To: "Discussion of precise time and frequency measurement" Sent: Monday, June 27, 2011 10:23 AM Subject: Re: [time-nuts] 60 Hz measurement party Hmmm. The "Single Wire Earth Return" scheme seems like a great cause for the stray voltage that affects farmers: http://articles.ky3.com/2011-03-18/stray-voltage_29143748 From: Eric Garner To: Discussion of precise time and frequency measurement Sent: Mon, June 27, 2011 11:54:32 AM Subject: Re: [time-nuts] 60 Hz measurement party Did it sound like this: http://en.wikipedia.org/wiki/Single-wire_earth_return ___ 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. ___ 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.