Re: [time-nuts] Serial port splitter s/w

2014-02-26 Thread Brent Gordon
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Re: [time-nuts] Serial port splitter s/w

2014-02-26 Thread Brent Gordon
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[time-nuts] Atomic Bill from leapsecond.com on Adafruit

2014-04-16 Thread Brent Gordon
http://www.adafruit.com/blog/2014/04/16/first-atomic-clock-wristwatch-the-hewlett-packard-5071a/ ___ 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

Re: [time-nuts] temperature sensor

2014-07-21 Thread Brent Gordon
The maximum temperature of saturated steam temperature depends on pressure; unsaturated steam does not. At work, we just finished a project using steam at over 800F to drive a jet mill. Brent http://en.wikipedia.org/wiki/Superheated_steam On 7/21/2014 5:39 PM, Attila Kinali wrote: On Mon,

[time-nuts] LTE Lite Question

2014-11-17 Thread Brent Gordon
I got my LTE Lite this afternoon and have been playing with it. I have a question on the NMEA $PSTI message: what are the last two numbers before the checksum (in this case 30, 0)? I've noticed that once the site survey is complete they go away, just the comma is left.

Re: [time-nuts] rs-422 rs-232 to fast ethernet converter

2014-11-22 Thread Brent Gordon
I haven't used this particular model. I have used similar units from Systech, purchased on eBay for less than $30 US. They work quite well. Some of them have selectable RS-232/RS-485 outputs. I've successfully used both types of outputs. The only problem I've had was the initial

Re: [time-nuts] UTC + 0 (was Accurate timestamping on computers )

2012-11-03 Thread Brent Gordon
Reykjavík, Iceland is UTC+0 without summer time changes. Brent On 11/3/2012 9:55 AM, Sarah White wrote: P.S. Seems strange that the only two options for a UTC+0 timezone are London, Dublin or Casablanca (neither of which are year-round UTC) ... I'll try to remember to point this out to the

Re: [time-nuts] Adding 10Mhz to Lucent RFTGm XO GPSDO

2013-01-16 Thread Brent Gordon
Maybe this link won't wrap. If it does, the last half of the url is RFTGm/Lucent RFTGm Modification.doc http://207.224.127.233/RFTGm/Lucent RFTGm Modification.doc Brent On 1/16/2013 8:56 AM, paul swed wrote: Sorry the link does not work. Looking forward to the read Paul WB8TSL On Wed, Jan

[time-nuts] Selecting a Microcontroller

2013-05-26 Thread Brent Gordon
The two threads here, Good (cheap) PIC chip choice for project? and Follow-up question re: microcontroller families have a lot of good information. A more organized approach is available at the Digi-Key/Design News Continuing Education Center which has several free courses on microcontroller

[time-nuts] Which Rubidium to Get?

2010-07-21 Thread Brent Gordon
I'm considering buying a rubidium standard, not that I really need one, just because I'm a Time Nut. I have some questions on what to look for and what to watch out for. I'll probably get one from either fluke.l or flyingbest on ePay. I know that they wear out. Is there any model I should

Re: [time-nuts] WTB: Older Version of LabView

2010-08-17 Thread Brent Gordon
Three copies of the Version 7.1 Student Edition are available here (found by a froogle search): http://www.textbooks.com/BooksDescription.php?CSID=DW2BW33KOOKBZKOMODUKCACQSBKN=715789#mplistings I was going to sell my copy until I saw the prices. As a long-time LabVIEW programmer, version

Re: [time-nuts] WTB: Older Version of LabView

2010-08-18 Thread Brent Gordon
I found version 8.0 bloated and slow, especially compared to version 7.1. It also slowed my computer to a crawl, even when it wasn't running. Version 8.0 was even worse than 7.0. Version 8.2 was a little bit better. Version 8.6 was usable, however NI dropped support for older systems,

Re: [time-nuts] WWVB Outages?

2008-12-26 Thread Brent Gordon
Your outage matches what NIST shows: http://tf.nist.gov/tf-cgi/wwvbgraph_e.cgi?5482602 Brent Tom Van Baak wrote: Greg, It happens now and then; no big deal. NIST is very good about logging these events for us. For recent (and past 7 years) see: http://tf.nist.gov/stations/wwvboutages.htm

Re: [time-nuts] WWVB Outages?

2008-12-26 Thread Brent Gordon
in Boulder, Gaithersburg, LaCrosse, and Santa Clara: http://tf.nist.gov/tf-cgi/wwvbmonitor_e.cgi Brent Greg Burnett wrote: Aha! Thanks Brent for that link! I wasn't aware that NIST had added that feature. Thanks again! Greg - Original Message - From: Brent Gordon time-n...@adobe

[time-nuts] Trimble Copernicus Leap Second

2008-12-31 Thread Brent Gordon
The start of the $GPZDA is specified to match the PPS output. Interesting that the others are one second slow. Any missing sentences were not sent. $GPZDA,235959.00,31,12,2008,,*6C $GPGLL,3507.53830,N,10631.28409,W,235958.00,A,A*75 $GPZDA,00.00,01,01,2009,,*6D

Re: [time-nuts] Prologix

2009-03-31 Thread Brent Gordon
Mike Feher wrote: A friend has a 5335A counter and bought a Prologix adaptor for it to collect data. He wrote the software and has had extremely good results. He offered to do the same for me utilizing my NI adaptor so I could use it for my various counters. Unfortunately he ran into problems

Re: [time-nuts] Selecting a Microcontroller

2013-05-27 Thread Brent Gordon
the presentation, open the presentation, then start the audio player on the class page. Some of the classes are really good, Jon Titus for example. Brent On 5/27/2013 1:52 AM, Herbert Poetzl wrote: On Sun, May 26, 2013 at 11:38:35AM -0600, Brent Gordon wrote: The two threads here, Good

Re: [time-nuts] OT Prototype Boards

2013-06-25 Thread Brent Gordon
I once saw a board that was 2.5 mm, which would cause what you describe. As soon as I figured out what the problem was, in the trash it went. Brent On 6/25/2013 8:03 AM, Bob Stewart wrote: OK, I see in the wiki that 0.1 is by definition 2.54mm. I was taught it was 2.54001, but that's not

Re: [time-nuts] GPIB/HPIB Address 31, Talk Only

2013-08-07 Thread Brent Gordon
That's part of the GPIB standard. It should work on any GPIB system. On 8/7/2013 1:22 PM, stan, W1LE wrote: Hello The Net, Is address 31, for talk only, a HP/Agilent feature only, or do tothers provide talk only on the buss ? I am looking at RF frequency counters to 12 GH, for use with

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

2012-02-26 Thread Brent Gordon
I've used EAGLE for about ten years. I strongly agree with what NeonJohn wrote below. I don't know if it is still the case, but when I started using EAGLE all of the library parts were on metric spacing (including DIPs and SMDs). This causes all sorts of headaches when doing a layout on

Re: [time-nuts] WWVB and solar flare

2012-03-08 Thread Brent Gordon
There are three things going on with WWVB right now 1. They are testing a new data format: http://www.nist.gov/pml/div688/grp40/wwvb.cfm 2. They had an outage for about an hour earlier today: http://www.nist.gov/pml/div688/grp40/wwvb-station-outages.cfm 3. There are reception failures at

Re: [time-nuts] Holy cesium clock, Batman!

2012-04-07 Thread Brent Gordon
Same Bat Time! Same Bat Channel! On 4/7/2012 8:38 PM, J. Forster wrote: So, what's the time? -John - On 08/04/12 02:59, Mark Sims wrote: One of the nose-bleed channels (MeTV) just showed an old 1980's Batman show where the infamous, evil, dastardly villain Clock King attempted to

Re: [time-nuts] problem with HP 59309A digital clock and HP IL/IB interface

2012-08-12 Thread Brent Gordon
I'm not familiar with the 59309A, but here are some things to try: Are you able to read just one character (1A)? Does the 59309A need a command to send the time? Have you tried setting the 59309A to talk-only mode? On 8/2/2012 2:20 PM, Hans Holzach wrote: RESET HPIL RESTORE IO

Re: [time-nuts] WOT: Identify this movie

2012-09-25 Thread Brent Gordon
Which was made into the movie Soylent Green. On 9/25/2012 5:34 AM, Tom Harris wrote: Sounds like the OP's story was from Harry Harrison's nightmarish novel of overpopulation Make Room, Make Room!. ___ time-nuts mailing list -- time-nuts@febo.com

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

2012-10-04 Thread Brent Gordon
David Taylor has all sorts of NTP monitoring scripts, software, and tips at his web site. Start at http://www.satsignal.eu/software/net.htm#NTPmonitor and look around. Brent On 10/4/2012 8:44 AM, bownes wrote: It had to happen eventually. Time Nut interest overlapped with $DAY_JOB. Due to

Re: [time-nuts] Obscure terms

2009-08-20 Thread Brent Gordon
The amount of land a man and a mule can plow in one day. 43560 square feet 640 Acres=1 square mile Jim Palfreyman wrote: Sheez - I'm so glad we have metric!! Can I ask you US dudes a question? Do you know, without looking it up, what an acre is? It's such a commonly used term for measuring

Re: [time-nuts] HP 5328 PSU nightmare... Or stupid engineer, you decide...

2009-09-09 Thread Brent Gordon
I'm not familiar with this particular instrument, but a standard technique for linear power supplies is to hook it up to a variac. This lets you turn down the line voltage so you can do some measurements without smoking the system. Brent Douglas Wire - PUPCo Studios wrote: Good day everyone and

Re: [time-nuts] DC-DC converter

2009-09-25 Thread Brent Gordon
Digi-Key http://search.digikey.com/scripts/DkSearch/dksus.dll?Detailname=102-1690-ND Part #102-1690-ND 9-36V in, 48V 1.04A out $85.46, in stock 9-pin module Joseph Gray wrote: Does anyone know where I can get an inexpensive 12VDC to 48VDC converter to power one of my Z3801A's? I can find

Re: [time-nuts] GPIB on HP5382B counter

2009-10-23 Thread Brent Gordon
I'm out of practice with C, but shouldn't viScanf(vi, %t, buf); be viScanf(vi, %t, buf); Brent Jerome Peters wrote: I'm still trying to get the HP5328B counter to work with GPIB. I don't have any problems talking, however I can't receive data. I think the basic (HP/Agilent)

Re: [time-nuts] Clock Project Help

2009-10-28 Thread Brent Gordon
There is an article in Circuit Cellar magazine that you need to read. It is Time Server Design: Synchronize with the WWVB Time Code. It is in the Nov 2008 issue (#220). You can buy the article at [1]http://www.circuitcellar.com/magazine/220.html for $1.50. Although it is the

[time-nuts] OT: Spectrum Analyzer

2009-10-30 Thread Brent Gordon
I'm thinking of buying a spectrum analyzer and would like to know what Time Nuts recommend. My requirements are fairly simple: 3GHz Max frequency or higher Either GPIB or Ethernet interface for control and data capture Not much larger than an average desktop computer. Portable is nice but

[time-nuts] SparkFun Status

2010-01-07 Thread Brent Gordon
At 10:00 AM Mountain Standard Time, SparkFun is showing only 7106.39 of the 100K given away. Of interest to Time Nuts is that their clock is about 15 minutes slow; it shows that the giveaway has been active for 45 minutes, not a full hour. ___

Re: [time-nuts] Labview and searching archive

2011-12-15 Thread Brent Gordon
At Amazon: http://www.amazon.com/LabVIEW-2009-Student-Robert-Bishop/dp/0132141299/ ISBN-10: 0132141299 ISBN-13: 978-0132141291 The Student Edition is also compatible with all National Instruments data acquisition and instrument control hardware. Note: The LabVIEW 2009 Student

Re: [time-nuts] Labview and searching archive

2011-12-15 Thread Brent Gordon
Paul, If it was a version prior to 8.x, you don't need a serial number or any kind of license key. With 8.x and later, your serial number is validated through National Instruments' servers. If you registered your software with NI, you should be able to get your serial number from them.

Re: [time-nuts] Labview and searching archive

2011-12-15 Thread Brent Gordon
From the NI web site (http://www.ni.com/labviewse/select.htm) LabVIEW Student Edition Textbook Bundle The LabVIEW 2009 Student Edition Textbook Bundle includes the LabVIEW Student Edition software and Dr. Robert H. Bishop's popular introductory textbook Learning with LabVIEW, published by

Re: [time-nuts] Distance between GPS Antennae

2011-12-18 Thread Brent Gordon
Baak wrote: From: Brent Gordon [1]time-n...@adobe-labs.com The best answer is try it it and see what happens. In my case two systems with patch antennas ten inches apart interfere significantly. Here are plots (using VisualGPS) of my position over a day or two

Re: [time-nuts] How best to exchange Large files?

2012-02-20 Thread Brent Gordon
I've used this http://free.mailbigfile.com/ for years. You upload the file and they send an email to the recipient who then downloads the file. Brent On 2/20/2012 10:52 AM, WarrenS wrote: I'm just looking for an easy, temporary way (say lasting up to a week each) to transfer a few big files

Re: [time-nuts] Mains as time-reference

2010-12-30 Thread Brent Gordon
Both programs work for me. I'm running WinXP. Brent On 12/30/2010 3:58 PM, Anthony G. Atkielski wrote: There's a beautiful screensaver available at http://gridwise.pnl.gov/technologies/ which shows the US WECC ( or so it seems ). I tried running the monitor program (not the screen saver),

Re: [time-nuts] T.I. experimenting - newbie question

2011-04-03 Thread Brent Gordon
Hi Joe, Both VoP and impedance depend on relative permittivity (dielectric constant). See the section Derived Electrical Parameters on Wikipedia. http://en.wikipedia.org/wiki/Coaxial_cable Brent On 4/3/2011 4:37 PM, Joseph Gray wrote: I assume you mean that impedance has an effect on VOP?

Re: [time-nuts] TimeLab with Wine: No RS232 interface available

2015-02-08 Thread Brent Gordon
Don't remove the serial mouse, just disable it. If you remove it, it will return on the next reboot. On 2/7/2015 9:11 AM, Jim Lux wrote: There's also the whole microsoft serial mouse device problem. A typical Windows 7 install (and other versions as well) will have a MS serial mouse device

Re: [time-nuts] Once again about counter calibration

2015-04-24 Thread Brent Gordon
Just feed the PPS into the scope trigger on step 2. The low repetition rate on the PPS would make this difficult on an analog scope; on a digital scope it is easy. You can use any sub-harmonic that is less than or equal the counter reference frequency (10 MHz). Brent On 4/24/2015 3:45 PM,

Re: [time-nuts] potential source for cheap copy of labview

2015-06-21 Thread Brent Gordon
You don't have to wait for the software to arrive if you don't mind downloading it. The software you download is the same as the software National Instruments (NI) ships to their customers. Without a serial number the software runs for 45 days. When you activate the software, using your

Re: [time-nuts] potential source for cheap copy of labview

2015-06-20 Thread Brent Gordon
/Detail.cfm?NavPath=2,1301,1450Prod=LABVIEW-HE Brent Gordon Certified LabVIEW Developer On 6/19/2015 9:18 PM, Bob kb8tq wrote: Hi It is interesting as you go through the various student and home versions, just how hard it is to figure out what you are (and are not) buying in each case. One

Re: [time-nuts] USB problems and solutions - Some what Off Topic

2015-05-29 Thread Brent Gordon
Lately, I've been seeing blue screens that I think are caused by my serial-USB adapters. Because I haven't updated by serial drivers since before the driver update fiasco a while back, my feeling is that this was caused by some other update. Regarding the COM ports, here is a article on how

Re: [time-nuts] GPS outage? 19:00-2100 UTC Tue

2015-08-19 Thread Brent Gordon
No problems in Albuquerque, NM. On 8/19/2015 2:11 AM, Hal Murray wrote: Most/all of my GPS toys stopped working for a few hours late Tue evening. A few where I have good logging ran out of satellites. Did anybody else notice anything similar? Was it local interference, or something at the

Re: [time-nuts] Prologix_GPIB vi

2016-02-01 Thread Brent Gordon
There are two ways to do it. The first is to turn off AutoScale. You can then set the axis to whatever you want. Right-click on the axis and uncheck "AutoScale X". See AutoScale.png. The hard way is to force the axis to be what you want. First you turn off AutoScale. Then you right

Re: [time-nuts] Serial-Ethernet

2016-02-25 Thread Brent Gordon
Joe, I've had good luck with Systech Terminal Servers on eBay. I've bought five of them for use at home and work and none of them have had any problems. Two port ones are around $20 and four port ones are around $50. Some of them support RS-485. Make sure they come with the power supply.

Re: [time-nuts] Hobbyist grade or homebrew temperature testing chamber?

2016-09-05 Thread Brent Gordon
There are cheap GC (gas chromatograph) ovens on eBay. They are well-insulated and give you fast, precise temperature control. Some of them are designed with a liquid nitrogen input for cooling. Otherwise, you can use dry ice. I saw one mentioned on one of the mailing lists I read, maybe