[time-nuts] Recommendations for Mains Power Monitor/Logger

2018-03-13 Thread Thomas D. Erb
Who made that one? I have three power station master clocks. http://electricclock.omeka.net/items/browse?tags=Power+Station+Master+Clock [electrictime] Thomas D. Erb o: 508-359-9684 p: 508-359-4396 x 1700 f: 508-359-4482 a: 97 West Street, Medfield, MA 02052 USA e: t

[time-nuts] Why European Clocks are Running Slow, and British Clocks Aren't

2018-03-13 Thread Thomas D. Erb
You tube video about line frequency time keeping issues in the EU. https://www.youtube.com/watch?v=bij-JjzCa7o [electrictime] Thomas D. Erb o: 508-359-9684 p: 508-359-4396 x 1700 f: 508-359-4482 a: 97 West Street, Medfield, MA 02052 USA e: t...@electrictime.com<mailt

Re: [time-nuts] Recommendations for Mains Power Monitor / Logger (

2018-03-12 Thread Thomas D. Erb
um/ET-logo3.jpg] Thomas D. Erb o: 508-359-9684 p: 508-359-4396 x 117 f: 508-359-4482 a: 97 West Street, Medfield, MA 02052 USA e: t...@electrictime.com<mailto:t...@electrictime.com> w: www.electrictime.com<http://www.electrictime.com> [https://s3.amazonaws.com/html

Re: [time-nuts] FURUNO GT-80 for Brandywine GPS-4

2018-03-10 Thread Mark G Thomas
t sure if they all used the same commands and responses. > ___ > 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. -- Mark G. Thomas (m...@mist

Re: [time-nuts] FURUNO GT-80 for Brandywine GPS-4

2018-03-09 Thread Mark G Thomas
M12 > board with a MMCX connector. Would these other modules be compatible with the controller and firmware in the GPS-4? I wasn't sure if they all used the same commands and responses. Mark -- Mark G. Thomas (m...@misty.com), KC3DRE ___ tim

[time-nuts] FURUNO GT-80 for Brandywine GPS-4

2018-03-09 Thread Mark G Thomas
Hi again, As best I can tell the FURUNO GT-80 GPS module in my Brandywin GPS-4 is bad. The module says: GT-80B5F Does anyone have any suggestions for fixing or replacing the GT-80 ? Mark On Sun, Oct 01, 2017 at 06:27:48PM -0400, Mark G Thomas wrote: > Hi, > > I picked up a Brand

Re: [time-nuts] WWV or Net Clock controlled oscillator

2018-03-05 Thread Thomas Miller
Take a look at the Maxim DS32KHZS 32.768kHz Temperature-Compensated Crystal Oscillator TCXO Available in 14 pin dip, needs +5 (you have), batt (you have, ground. Supplies 32,768 that you feed into pin 17 of the clock chip after removing the existing Xtal. Supposed to hold 1 min per year over t

Re: [time-nuts] WWV or Net Clock controlled oscillator

2018-03-05 Thread Thomas Miller
Ok, looking at the pictures and the datasheet gives several questions. 1) What signal is on TP1? Is it 32,768 Hz? 2) What does C3 do? Is it used to trim the 32,768 Xtal? 3) Out of curiosity what is the frequency of U2, the oscillator module? Maybe you can remove the 32,768 Xtal and feed in a

Re: [time-nuts] WWV or Net Clock controlled oscillator

2018-03-04 Thread Thomas Miller
Can you supply any schematics, good images of the electronics? We may be able to suss out how they do the internal reference. I am thinking that since it has a 2.4 volt NiCd battery backup that it used some sort of 32,768 quartz oscillator for time keeping. It may also have some adjustment you

Re: [time-nuts] Anyone have experience with this antenna?

2018-02-08 Thread Thomas Petig
mall picture and some info: https://www.sp.se/en/index/resources/GNSS/Sidor/default.aspx Thomas, SA6CID ___ 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] Vanguard TCXO

2018-02-08 Thread Thomas Allgeier
st the nominal frequencies it outputs are now going to be very close to the mark without the need for an external ref. Kind regards, Thomas. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/lis

Re: [time-nuts] Rinex Data Stream

2017-11-26 Thread Thomas Petig
Hi Marco, What receiver? What do you mean with stream? Besides the software of the manufacturer, the tools in RTKLIB could help you as well. I am not aware of NMEA sentences that contain raw data, you need to parse the proprietary protocol of your receiver. Best, Thomas, SA6CID On Sun, Nov

Re: [time-nuts] Lucent RFTG-u REF0-REF1 cable

2017-11-14 Thread Thomas Petig
small ATTiny is sufficient. /Thomas, SA6CID On Tue, Nov 14, 2017 at 08:30:54AM -0800, Jerry Hancock wrote: > Bob, I thought you had to send it code, etc? I have the two units > with cable, etc running upstairs. I want another one for in my office > but the same guy only sells the REF0

Re: [time-nuts] NEO-7M various modes

2017-10-29 Thread Thomas Petig
blocked and the RX is receiving reflections, that traveled a bit longer. Thus, solving the navigation equations fails, or sometimes even worse, gives a wrong position. Walls, windows and water surfaces provide a multi-path signal with rather good SNR. /Thomas, SA6CID > > > > > > >

[time-nuts] Quartz Technik Xtal

2017-10-15 Thread Thomas Allgeier
K). Best regards, Thomas. ___ 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] Another LORSTA mast bites the dust...

2017-10-04 Thread Thomas S. Knutsen
, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > -- With Best regards, Thomas S. Knutsen. Please avoid sending me Word or PowerPoint attachments. ___ time-nuts mailing list -- t

[time-nuts] Brandywine GPS Master Clock help

2017-10-01 Thread Mark G Thomas
,001:00:00:00,+69.7,60,04,09*03 h $PFEC,GPanc,,*47 l $GPGSV,1,1,00*79 n $PRCCG,N,31F,---,00*62 p $GPGGA,,0M,,M,,*66 s $GPRMC,,V000.0,W*48 t00:00:07.252 01/01/04 001 4 5 t00:00:07.659 01/01/04 001 4 5 -----

Re: [time-nuts] Looking For Z3801A Software

2017-08-30 Thread Thomas
Try the program om Ulrich Bangert's site: http://www.ulrich-bangert.de/html/downloads.html Have that working here on win10. Thomas. Sendt fra min iPhone > Den 29. aug. 2017 kl. 19:05 skrev Richard Solomon : > > I came across an HP Z3801A that I had not unpacked, been sitti

Re: [time-nuts] Ships fooled in GPS spoofing attack suggest Russian cyberweapon

2017-08-15 Thread Thomas Petig
s vehicle in urban areas. This allows, as a side effect, to detect spoofing. On ships RADAR is standard if visibility is low, but doesn't help if there are no obstacles above water. Best regards, Thomas [1] Fusing odometry information would help a bit. ___

[time-nuts] TEMEX / Spectracom EC2S GPS 10MHz clock

2017-08-06 Thread Thomas S. Knutsen
rrect (-10V, 5V, 3.12V). If anyone have any idea on where to get service info on this receiver, it would be most helpfull. -- With Best regards, Thomas S. Knutsen. Please avoid sending me Word or PowerPoint attachments. ___ time-nuts mailing

Re: [time-nuts] 5370B Input Board Repair [WAS: 5370B Question / help needed]

2017-07-20 Thread Thomas Allgeier
may well be back into the intermittent fault situation fairly quickly. Kind regards, Thomas. Message: 6 Date: Wed, 19 Jul 2017 18:16:42 -0600 From: djl To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] 5370B Input Board Repair [WAS: 5370B Question

Re: [time-nuts] 5370B Input Board Repair [WAS: 5370B Question / help needed]

2017-07-19 Thread Thomas Allgeier
rs going! Kind regards, Thomas. Message: 3 Date: Wed, 19 Jul 2017 07:09:58 -0600 From: Gary Neilson To: time-nuts@febo.com Subject: Re: [time-nuts] 5370B Input Board Repair [WAS: 5370B Question / help needed] Message-ID: Content-Type: text/plain; charset=utf-8; format=flowed This is very interesting,

[time-nuts] 5370B Input Board Repair [WAS: 5370B Question / help needed]

2017-07-18 Thread Thomas Allgeier
this a build change introduced at a certain period? Hope the above is of help to somebody else, Thomas. Message: 1 Date: Sat, 15 Jul 2017 21:54:47 +0100 From: Thomas Allgeier To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] 5370B Question / help needed

Re: [time-nuts] 5370B Question / help needed

2017-07-15 Thread Thomas Allgeier
5370 / 5345. Did this get off the ground? If my A3 packs up completely... Thanks in advance for any suggestions, Thomas. Date: Wed, 5 Jul 2017 11:00:35 +0100 From: "Thomas Allgeier" To: Subject: Re: [time-nuts] 5370B Question / help needed Message-ID: Content-Type: text/plain; format=

Re: [time-nuts] 5370B Question / help needed

2017-07-05 Thread Thomas Allgeier
this space as they say. I may well need the extender cards but since I am based in the UK shipment would have to be considered. Probably worth checking all other options first. Best regards, Thomas. Message: 1 Date: Mon, 3 Jul 2017 08:13:09 -0600 From: Gary Neilson To: time-nuts@febo.com Su

Re: [time-nuts] 5370B Question / help needed

2017-07-01 Thread Thomas Allgeier
to 100ns: 15 is complemented by -85 and 66 by -34. All this is for Trigger Levels at Preset. When I "tune" the levels to get 100 ns at +TI and then switch to +/-TI I get around 20 ps, and the Complement button has no effect on this. On Sat, Jul 1, 2017 at 9:38 PM, Poul-Henning Kamp w

[time-nuts] 5370B Question / help needed

2017-07-01 Thread Thomas Allgeier
ut then the fact that the 6 ft cable don't show up as extra delay may mean there is something else wrong. Looks like some "fun with Bill and Dave" lies ahead if somebody can point me in the right direction. Thanks in advance, Thomas. ___ ti

Re: [time-nuts] Noise contribution of PLL on measuring phase noise

2017-06-28 Thread Thomas S. Knutsen
mal garden variety op-amp work? Wentzel used the 310 in his buffers, and those are a bit special, being a bipolar amp with 2nA input bias current. BR. Thomas 2017-06-28 18:08 GMT+02:00 Bob kb8tq : > Hi > > Ok, let’s back up a bit: > > There are two basic regions when measuring

[time-nuts] Noise contribution of PLL on measuring phase noise

2017-06-28 Thread Thomas S. Knutsen
OP27). BR. Thomas. -- With Best regards, Thomas S. Knutsen. Please avoid sending me Word or PowerPoint attachments. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

[time-nuts] Line Frequeny Stablity

2017-04-05 Thread Thomas D. Erb
I actually have a 1930's unit in my clock collection - and in the 1980's we used to make an AC power clock in a panel next to a quartz clock for small island frequency control. This is a link to my master clock http://electricclock.omeka.net/items/show/6 I'm just wondering how is it set now ?

Re: [time-nuts] Line Frequeny Stablity

2017-04-04 Thread Thomas D. Erb
Thanks for the info. So that tells me how data is recorded - but not how the frequency is kept stable ? Is the line frequency now directly tied to GPS clock - with no drift ? Thomas D. Erb t...@electrictime.com<mailto:t...@electrictime.com> / Electric Time Company, Inc. Office: 508-359-

[time-nuts] Line Frequeny Stablity

2017-04-04 Thread Thomas D. Erb
I was wondering if anyone knew how the US power grids control their line frequency with respect to time ? There seems to be four separate grids - Eastern, Texas, Western and Quebec - but I have no idea how they get their time. Thomas D. Erb t...@electrictime.com<mailt

Re: [time-nuts] Smart Phone time display accuracy...? (shouldbe q931)

2017-03-27 Thread Thomas D. Erb
I believe some of the cell phone protocols actually provide time to the phone as part of the authentication process. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow

Re: [time-nuts] WTB: GPSDO

2017-03-23 Thread Thomas Petig
receiver that might require this. Many dedicated GPS splitters have such a DC load 'simulation' with around 200 Ohm to ground to keep the receiver happy. Best, Thomas DK6KD/SA6CID > -- > Chris Caudle > > > > > ___ > tim

Re: [time-nuts] WTB: GPSDO

2017-03-22 Thread Thomas Petig
cuits to split the GNSS signals and a good outdoor antenna. Best, Thomas, DK6KD/SA6CID signature.asc Description: Digital signature ___ 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] ``direct'' RS-232 vs. RS-232 via USB vs. PPS decoding cards

2017-02-18 Thread Thomas Petig
the clock on the card is synchronized to the clock used by the OS. So, can we do better? Best regards, Thomas DK6KD SA6CID > > Bob > > > > > Regarding the PPS -> USB (using the CTS line of a FTDI FT232R), I > > plotted, using some lines of Python, the tim

[time-nuts] Line Frequency standard change - Possible ?

2017-02-09 Thread Thomas D. Erb
bulk electric system. https://www.ferc.gov/whats-new/comm-meet/2017/011917/E-13.pdf Thomas D. Erb t...@electrictime.com<mailto:t...@electrictime.com> / Electric Time Company, Inc. Office: 508-359-4396 x 117 / Fax: 508-359-4482 97 West Street Medfield, MA 02052 USA www.electrictime.co

Re: [time-nuts] Lucent KS-24361 REF 0 standalone

2017-02-07 Thread Thomas Petig
, pr_gps_debug will count this as frame error. Regarding my setup, I am sending the Oncore messages from Python via a USB cable. I just trigger the Python script on the PPS, I don't read the actual what the skytraq sends. It seems the REF 0 is happy with the timing of my Oncore messages. Regards, T

[time-nuts] Lucent KS-24361 REF 0 standalone

2017-02-06 Thread Thomas Petig
ssages? Does someone has dump of the communication between REF 1 and REF 0, until the REF 0 is happy (I don't have a REF 1)? Regards, Thomas DK6KD SA6CID --- Primary Receiver Status --- SYNCHRONIZATION .

Re: [time-nuts] ntp and asymmetric delays

2016-10-11 Thread Thomas Valerio
checking against the net when I have a GPS source is that I want ntp to continue if/when there is no PPS. Is there any way to inform ntp of the asymmetry? Thanks, -- Thomas Valerio Every 20.0s: /usr/sbin/ntpq -n -c pe pe Tue Oct 11 12:37:33 2016 remote refid

Re: [time-nuts] AC line distortion

2016-10-04 Thread Thomas D. Erb
Maybe a capacitive load in your facility ? Whenever I've looked at it - it's always been pretty clean. For years we used the AC mains for time keeping - but have found in some locations - especially ones with lots of dimmers - zero crossing counting was ineffective. My feeling was that dimmers t

Re: [time-nuts] controlling instruments using USB

2016-07-25 Thread Thomas Valerio
Have you looked at alien to convert the rpm to a deb? https://www.google.com/#q=alien+package+conversion > Semi-off-topic.. > > I've got a bunch of Keysight/Agilent/HP instruments with USB interfaces > that I want to control from Python. On Mac and PC, the PyVisa library > works great (eithe

Re: [time-nuts] GPS message jitter (preliminary results)

2016-07-21 Thread Thomas D. Erb
Here is an interesting discussion of Kalman filtering. http://math.stackexchange.com/questions/173901/why-use-a-kalman-filter-instead-of-keeping-a-running-average Thomas D. Erb t...@electrictime.com<mailto:t...@electrictime.com> / Electric Time Company, Inc. Office: 508-359-4396 x 117

[time-nuts] Mains Frequency Monitor with the PIC 16F1619 (Daniel Watson)

2016-06-20 Thread Thomas D. Erb
ems/show/6 Thomas D. Erb t...@electrictime.com<mailto:t...@electrictime.com> / Electric Time Company, Inc. Office: 508-359-4396 x 117 / Fax: 508-359-4482 97 West Street Medfield, MA 02052 USA www.electrictime.com<http://www.electrictime.com> [Facebook]<https://www.facebook.com/pages/

[time-nuts] 1937 Time Standard

2016-05-21 Thread Thomas D. Erb
I was wondering if anyone knew what the "state of the art" time standard was in the 1937 ? ___ 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 th

[time-nuts] Dead tree material: Ships, Clocks, and Stars: The Quest for Longitude

2016-04-26 Thread Thomas Valerio
where else. Any interest? Thomas Valerio ___ 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] Counter?

2016-02-19 Thread Thomas Allgeier
i.e. counters. The thing looks 1960's to me. Not sure if it is worth 3000 bucks, though. Kind regards, Thomas. Date: Thu, 18 Feb 2016 23:32:09 +0100 (CET) From: "iov...@inwind.it" To: Subject: [time-nuts] Counter? Message-ID: <1178303383.10543371455834729338.javamail.ht..

[time-nuts] Navsymm Proteus GPS CDU Software

2016-01-22 Thread Thomas Allgeier
around here. I will meanwhile check if any sense can be made of its outputs, in case there is some hardware problem. Thanks in advance, Thomas. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin

Re: [time-nuts] Loran-C Norway/France/Germany shutdown

2015-12-31 Thread Thomas S. Knutsen
FWIW, Loran-C at Jan-Mayen was shut down at 1200NT (1100UTC). Info from: http://jan.mayen.no/nyheter/en-aera-er-forbi/ I will check with a friend at Bø station on monday regarding the rest of the norwegian stations. BR. Thomas. 2016-01-01 3:16 GMT+01:00 GandalfG8--- via time-nuts : > >

[time-nuts] Symmetricom NTS-150 and NTS-200 firmware wanted

2015-12-29 Thread Mark G. Thomas
Hi, Does anyone have v8.4 firmware for one or both of these? Mine are running v8.2, but apparently version 8.4 is the newest. Mark -- Mark G. Thomas (m...@misty.com), KC3DRE ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] End of Loran-C in Europe confirmed.

2015-12-17 Thread Thomas S. Knutsen
x27;t go above the horizon for several months in the wintertime. Poul-Henning: I can confirm that Russian Chayka station is still on the air. BR. Thomas. 2015-12-17 16:26 GMT+01:00 Poul-Henning Kamp : > > In message <5672a8ed.1010...@g7iii.net>, Iain Young writes: > &

[time-nuts] More results with the ACAM GP22 chip

2015-12-05 Thread Thomas Allgeier
in mind the chip is adequate, and what I saw initially (10's to 100's of ns noise) is simply the oscillator on the weighing cell trying to keep itself tuned with the mechanical vibrations which it is meant to lock on to. Best regards, Thomas. _

[time-nuts] First results with the ACAM GP22 chip

2015-11-29 Thread Thomas Allgeier
don't intend to push it any further, I would expect the performance of the chip to be similar whether the period to be measured in 1 µs or 70. Thanks again for all the suggestions so far. Best regards, Thomas. ___ time-nuts mailing list -- time-n

Re: [time-nuts] ACAM GP22 Chip

2015-11-26 Thread Thomas Allgeier
ready. I played with it last night and I think I should shortly be in a positions to share "early" findings. Best regards, Thomas. -Original Message- From: Tom Van Baak Sent: Thursday, November 26, 2015 12:02 AM To: Discussion of precise time and frequency measurement Sub

Re: [time-nuts] ACAM GP22 Chip

2015-11-26 Thread Thomas Allgeier
, and my own curiosity wants to find out how good a homebrew counter/timer could be built from it. As I said I will feed back anything I can establish in this respect. Best regards, Thomas. -Original Message- From: Angus Sent: Thursday, November 26, 2015 1:54 AM To: Discussion of precise

Re: [time-nuts] ACAM GP22 Chip

2015-11-25 Thread Thomas Allgeier
waggons) but the AoE book as suggested by Hal should set me straight. Thanks again, Thomas. - Original Message - From: "Bob Camp" To: "Discussion of precise time and frequency measurement" Sent: Tuesday, November 24, 2015 11:24 PM Subject: Re: [time-nuts] ACAM GP2

Re: [time-nuts] ACAM GP22 Chip

2015-11-25 Thread Thomas Allgeier
. Kind regards, Thomas. - Original Message - From: "Hal Murray" To: "Discussion of precise time and frequency measurement" Cc: Sent: Tuesday, November 24, 2015 7:44 PM Subject: Re: [time-nuts] ACAM GP22 Chip th.allge...@gmail.com said: I should say from the st

Re: [time-nuts] ACAM GP22 Chip

2015-11-25 Thread Thomas Allgeier
Hello Bob, Thanks for the suggestions - these sound a bit beyond my current level of skills and kit. But I do have people to call on in the office who may be able to rig something like that up for me should the coax route fail. Best regards, Thomas. - Original Message - From

Re: [time-nuts] ACAM GP22 Chip

2015-11-25 Thread Thomas Allgeier
eally matters is the change in weight, not how heavy the mass is in absolute terms. It sounds like the coil must be wound what we used to call "bifilar" in my school days, i.e. self-cancelling the inductivity. That should be doable, and on the other stuff I will read up a bit first.

Re: [time-nuts] ACAM GP22 Chip

2015-11-25 Thread Thomas Allgeier
route, starting with a shorter length first, and reading up a bit. If any useable results can be obtained I will post them for future reference. Best regards, Thomas. - Original Message - From: "paul swed" To: "Discussion of precise time and frequency measurement&qu

[time-nuts] ACAM GP22 Chip

2015-11-24 Thread Thomas Allgeier
measured in “range 2”. Thanks and best regards, Thomas. ___ 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] Just When You Thought It Was Safe ....

2015-07-31 Thread Thomas Valerio
7;d buy a James Miller GPSDO before I would buy a KS24361 at $150. It's not nearly the same bang for the buck adev wise as a KS24361, even at $150, but at least I get some serious space savings and I am far more confident that the money is going to an honest seller. -- Thomas Valerio >

[time-nuts] How to adjust clock frequency in FreeBSD 10.1 ?

2015-02-11 Thread Rick Thomas
I’ve got a machine with a really bad clock. When I run NTP on it, the freq goes straight to 500.0 (over a period of a few days) and stays there, while the offset grows and grows. I recently switched this machine from Debian Linux to FreeBSD (wanting to learn more about FreeBSD). Under Linux,

Re: [time-nuts] Minicircuits specs

2014-11-29 Thread Thomas S. Knutsen
that into an quite decent scalar VNA. Brr. (its probably cold up here in the north :) Thomas LA3PNA. -- Please avoid sending me Word or PowerPoint attachments. See <http://www.gnu.org/philosophy/no-word-attachments.html> PDF is an better alternative and there are always LaTeX! _

Re: [time-nuts] Si5351A

2014-11-11 Thread Thomas S. Knutsen
John Miles did the phase noise measurments, they are avaible here: http://nt7s.com/2014/11/si5351a-investigations-part-7/ BR Thomas. 2014-11-11 21:49 GMT+01:00 Joseph Gray : > Some of you have probably already heard of this new clock generator chip > from Si. News of a board with thi

Re: [time-nuts] Anybody have experience with TimeMachines TM1000AGPS Time Server

2014-11-10 Thread Rick Thomas
l output, so I don't know which sentences >> are supported. Probably good to look at the documentation for the gps >> chip. >> Norm n3ykf >> >> >> On Mon, Nov 10, 2014 at 12:54 AM, Rick Thomas wrote: >>> Hi Lizeth, >>> >>> I’v

Re: [time-nuts] Anybody have experience with TimeMachines TM1000AGPS Time Server

2014-11-09 Thread Rick Thomas
browser at it's ip. > Just syncing a bunch of cameras as well being the "house" time standard. > > On Sun, Nov 9, 2014 at 4:49 PM, Rick Thomas wrote: >> >> Right. I did the reset to factory defaults jumper thing and it came back to >> life. I’m using

Re: [time-nuts] Anybody have experience with TimeMachines TM1000AGPS Time Server

2014-11-09 Thread Rick Thomas
Rick wrote: >>> Signal Strength: Satellite 1: 32 dB, Satellite 2: 31 dB, Satellite 3: 30 dB > Bob replied: >> On a normal GPS based gizmo, you should be seeing 6 to 8 satellites just >> about all the time. Carrier to noise ratios typically are in the > 40 db >> range. You seem to be “antenna c

Re: [time-nuts] Anybody have experience with TimeMachines TM1000AGPS Time Server

2014-11-09 Thread Rick Thomas
uth of you based on the way the sat > orbits are set up. > > Bob > >> On Nov 9, 2014, at 4:49 PM, Rick Thomas wrote: >> >> >> Right. I did the reset to factory defaults jumper thing and it came back to >> life. I’m using it now with the default set

Re: [time-nuts] Anybody have experience with TimeMachines TM1000AGPS Time Server

2014-11-09 Thread Rick Thomas
Right. I did the reset to factory defaults jumper thing and it came back to life. I’m using it now with the default setup. I got a reply from somebody named Doug at css-timemachines suggesting that I use a different browser (I had been using Safari on my desktop Mac) so I switched to Chrome

Re: [time-nuts] Anybody have experience with TimeMachines TM1000A GPS Time Server

2014-11-09 Thread Rick Thomas
On Nov 8, 2014, at 7:11 PM, Jim Lux wrote: > On 11/8/14, 6:58 PM, Pete Lancashire wrote: >> Is this who you got it from >> >> http://www.css-timemachines.com/ >> >> if so, why not contact them ? I’ve sent email to them, but I don’t expect an answer before Monday. I was hoping somebody on

[time-nuts] Anybody have experience with TimeMachines TM1000A GPS Time Server

2014-11-08 Thread Rick Thomas
I just bought a Time Machines TM1000A GPS Time Server from CSS in Lincoln Nebraska, USA. Immediately after I plugged it in and connected the antenna and ethernet, I could connect to it with a web browser, with ping and with an NTP client. The first thing I tried to do was use the web browser i

Re: [time-nuts] LTE-Lite module

2014-10-18 Thread Thomas S. Knutsen
The potatochips are quite excelent high speed devices, and by selling them on e-bay, they make it avaible to us who are not able to go through the normal supplier chains. Br. Thomas. 2014-10-19 2:48 GMT+02:00 Tom Miller : > This looks pretty interesting: > 74G series PO74G74 &g

Re: [time-nuts] VNA design

2014-06-02 Thread Thomas S. Knutsen
t is the single most important part of the VNA. Do use an calkit for the connectors you are going to measure, don't add adaptors or worse, coaxial cable after the calibration plane. The book by Joel Dunsmore is excelent, highly reccomended if you are doing or interested in VNA measurments. BR. Th

Re: [time-nuts] GPS with 10KHz output

2013-09-19 Thread Merv Thomas
Hi Bill, I have a number of these modules purchased from the particular eBay source you gave a link for. They work well but I never found a way to keep their data output as NMEA as they seem to revert to Binary on power down. However if it is just the 10KHz output you want from them or their

Re: [time-nuts] Low cost GPS for model aircraft

2013-08-05 Thread Thomas Valerio
You might want to check out http://diydrones.com/ as well. Thomas Valerio > This chatter about model aircraft GPS got me to wondering if there now > off-the-shelf flight control systems for model planes that will do nav > and/or attitude control? I know there are mini-gyros, but I t

Re: [time-nuts] Radio Shack GPS Module

2013-08-04 Thread Thomas Valerio
e problems, would enclosing it in a shielded enclosure ameliorate those problems? Has anyone on the list done this? Thanks, Thomas Valerio > From: Tim Shoppa > > Very likely the Parallax PMB-648, a SirfStar III. A fair number of local > radio shack stores have Parallax an

Re: [time-nuts] Posting Rules

2013-07-10 Thread Thomas Valerio
. Thomas Valerio >> Charles wrote: Please keep your political comments to yourself and off >> the list (however humorous you might think they are).  This is simply >> not the place for them. >> > Charles, >   > On the two lists we both subscribe to, you alway

[time-nuts] Re Brooks Shera ASM release

2013-04-16 Thread Merv Thomas
Hi Bert, Thanks for yours and Bob Leichner's time and others for this release. I bought what was the latest version with AutoN from Brooks in 2010 but will program a PIC with what you have released to see if there are any significant differences. Also a big thank you to Karen her permission

Re: [time-nuts] Locked onto LORAN 8970 GRI Monday AM

2013-02-05 Thread Thomas S. Knutsen
drifted by their host nations. There is an interest in keeping the LORAN-C chains Eidi and Bø, as they give good coverage in the Barents sea. The current agreement keeps the chains in operation to 2018. BR. Thomas. 2013/2/5 Chuck Harris > Has anyone thought to ask them what their intentions

Re: [time-nuts] GPIB, Proloigix, cables

2013-01-27 Thread Thomas S. Knutsen
addition, you could have several like instruments with different adresses, and let the program just choose the one thats turned on. Br. Thomas. 2013/1/27 Jim Lux > Connectivity to the prologix from host isn't the problem.The challenge > is on the gpib side. It was almost workin

[time-nuts] Silicon Chip 2.5GHz 12 Digit Frequency Counter

2013-01-09 Thread Merv Thomas
Hi, The January issue of the article is now available so it would be interesting to get further comments from members. Previous comments were generally very critical of this Jim Rowe designed unit and one in particular commented on the non availability of the source code for some of the proj

Re: [time-nuts] matlab, python, etc.

2013-01-07 Thread Thomas S. Knutsen
An semester or two with linear algebra is an good start, but the homepage of matlab have an excelent learning section. No experience with Octave yet. MIT OCW (open courseware) have lectures on linear algebra, in addition to most of the other courses offered at MIT. BR. Thomas. 2013/1/7 Attila

[time-nuts] Re 2.5 GHz 12 digit counter project

2012-12-28 Thread Merv Thomas
Hi All, I bought the Dec 2012 magazine today and have casually looked thru the article. Part 2 will come in the Jan 2013 edition. Initial comments are: It is thru-hole construction(understandably because many constructors do not have the ability to do surface mount) Personally I would have

[time-nuts] Re Brooks Shera

2012-12-20 Thread Merv Thomas
Hi, I was fortunate enough to deal with Brooks just before he became difficult to contact. I built his GPSDO which works very well and I have the 4.02 programmed PIC but unfortunately it has the code protection enabled so I have been unable to copy it. I tried through every avenue possible

[time-nuts] HP Z3801A and Tac32

2012-11-12 Thread Merv Thomas
Hi - Thanks to all for the helpful hints which may enable me to use Tac32. Sorry for a new posting but I had a calamity and somehow deleted all the replies instead of moving them to my Timenuts folder!! I converted the output to the DB25 connector on the back of the unit to RS232 comms but it

[time-nuts] HP Z3801A and Tac 32

2012-11-11 Thread Merv Thomas
Hi All, I use a Z3801A with a software program called GPS Control published by BDS Systems of Colorado and the setup works well but I have never been able to look at or control the 3801A using Tac32. Very recently Tac32 was upgraded to allow one to choose most of the GPS receiver communicati

Re: [time-nuts] 57600 baud rate with Basic???

2012-10-09 Thread Thomas S. Knutsen
This week it may be Visual Studio, avaible from: http://www.microsoft.com/visualstudio/eng/products/visual-studio-express-products 73 de Thomas 2012/10/9 Bob Camp > Hi > > I'm not sure I'd call it Basic, but Microsoft has VB Express (or what ever > they call it this wee

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Thomas Valerio
after the snake oil sales people have had a chance to get their spiel out. Thomas Valerio > Offhand I can not think of any reason it could not exist but if you > have to ask for the price, then I suspect it will be too expensive. > > On Sun, 30 Sep 2012 19:40:47 -0700, Skip Withrow &

Re: [time-nuts] 10 MHz low pass filter

2012-06-20 Thread Thomas S. Knutsen
sallen key lowpass may be interesting to build,and with the GHz bandwith op-amps avaible today, it should work great. Thomas. 2012/6/21 > ** > In the days when I had access to a network analyzer with a chip component > fixture (all calibrated of course), I tested components on hand just

Re: [time-nuts] 10 MHz low pass filter

2012-06-20 Thread Thomas S. Knutsen
still there. Thomas. 2012/6/21 > If the output is buffered, there really shouldn't be a problem. > > Incidentally, I can crank out high order LCR filters all day just by > transforming prototypes out of Zverev. But it has been my experience at > even 10MHz the parasitics of the

Re: [time-nuts] Shera Controller - U7

2012-05-15 Thread Merv Thomas
Hi Kevin - I have replied direct to your latest email to me and it has not bounced back but I wonder if you have received it? Let me have your address and I will airmail the oscillator to you pronto. Merv VK6BMT ___ time-nuts mailing list -- tim

[time-nuts] Re Shera Controller - U7

2012-05-14 Thread Merv Thomas
Hi Kevin - I have a spare I can send you. I responded direct to your email but no reply. Merv VK6BMT ___ 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 in

Re: [time-nuts] TU-60 Instruction to set NMEA output

2012-05-11 Thread Merv Thomas
Hi Bj?m and Mike, I have some older TU's like the 30 and these are easy to set for binary or NMEA but the TU 60 requires a specific command 1331 and I am not savvy enough to convert this into a meaningful @@ command if there is such a valid command. One would have thought the manufacturer wo

Re: [time-nuts] TU-60 Instruction to set NMEA output

2012-05-11 Thread Merv Thomas
Hi All, Thanks for the 2 prompt replies. Tac32 does not have any facility to enter 1331 as an instruction. It has numerous @@ commands but the TU 60 datasheets only list a small fraction of these commands and none pertain to setting the protocol!! It is like it is a carefully guarded secre

[time-nuts] TU-60 Instruction to set NMEA output

2012-05-11 Thread Merv Thomas
Hi, I am new to timenuts. Is anyone able to give me the binary command sentence/code to send to my Jupiter TU-60 to change it's output from Binary to NMEA please? I assume it has to be a binary command starting with @@ but I am unable to find a suitable command using Tac32 control software.

[time-nuts] HP Z3801A GPS Receiver

2012-04-15 Thread Merv Thomas
My Unit comes up with an INVALID EFC +0 when switched on and never tracks any satellites. ALL other indicators(using GPS Control s/ware)say all is well including the EFC!! The EFC Volts read 19.029% or Absolute N value of 624056 so it is not near the end of it's EFC range. Anyone who has simila

Re: [time-nuts] Neutrinos faster than light update

2012-02-22 Thread Rick Thomas
Try this one: http://news.sciencemag.org/scienceinsider/2012/02/breaking-news-error-undoes-faster.html Rick On 02/22/12 19:42, Bill Hawkins wrote: Ah, Didier, that link is to a thread started in September, 2011. Do I have to sort through the 1000+ comments to find something recent? Bil

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

2012-01-13 Thread Thomas S. Knutsen
f you want to support some of the early instruents. I use the Prologix USB box often. It appears as an serial port, and is easy to use. As fair as I understand, the GPIB-LAN device you just telnet into. BR. Thomas. 2012/1/13 Chris Albertson > $150 is $130 more than $20. It depends on if an

Re: [time-nuts] Z3801A's

2012-01-13 Thread Thomas S. Knutsen
I bougth one, and it seems like they have replaced the firmware with the one from 58503A. When sending *IDN to it, it responds with HP 58503A. Thomas. 2012/1/13 Hal Murray > > - > > Does anybody know what "Z3801A has been upgraded by us, which the feature > is

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