Re: [time-nuts] NEO-M8N vs. NEO-M8T

2018-05-21 Thread Gary E. Miller
t long term standard deviations for qErr in Stationary and Survey-in modes. That, of course, will take days. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 54

Re: [time-nuts] NEO-M8N vs. NEO-M8T

2018-05-21 Thread Gary E. Miller
Yo Chris! On Mon, 21 May 2018 13:55:23 -0500 "Chris Caudle" <ch...@chriscaudle.org> wrote: > On Mon, May 21, 2018 1:52 pm, Chris Caudle wrote: > > On Mon, May 21, 2018 1:19 pm, Gary E. Miller wrote: > >> Now, how to I tell the Linux kernel to apply that

Re: [time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-21 Thread Gary E. Miller
y is 52 nano Seconds and the PPS offset reported by UBX-TP is double that! So, clearly it matters. I'll do more data logging to get harder numbers. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Be

Re: [time-nuts] NEO-M8N vs. NEO-M8T

2018-05-21 Thread Gary E. Miller
I tell the Linux kernel to apply that correction? RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. -- Quid est ve

Re: [time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-21 Thread Gary E. Miller
accurate but not stable ) > > So, which of the two is more important? UTC is most important (to me), but if one has perfect UTC, then one also has perfect seconds. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington

Re: [time-nuts] NEO-M8N vs. NEO-M8T

2018-05-21 Thread Gary E. Miller
Yo Scott! On Sun, 20 May 2018 22:03:49 -0500 Scott Newell <newell+timen...@n5tnl.com> wrote: > At 09:23 PM 5/20/2018, Gary E. Miller wrote: > > >I do not see the keyword 'sawtooth' in the u-blox 8 doc. Can I buy > >a clue? > > UBX-TIM-TP, "Time Pulse Time

Re: [time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-21 Thread Gary E. Miller
ted TICC data. Your concept of 'real time' does not match mine. Also, how does that get me to the gola of a good PPS to feed into the Linux PPS kernel module? I doubt Linux would accept a patch to put gpsd, and more, into the k

Re: [time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-21 Thread Gary E. Miller
Yo Bob! On Mon, 21 May 2018 13:41:08 -0400 Bob kb8tq <kb...@n1k.org> wrote: > Ok, are you trying to hold close to UTC or simply have a second that > is as close to 1 second as possible? Yes. One follows the other

Re: [time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-21 Thread Gary E. Miller
ng step. > > > > You have a *something* to read the TICC output it does not just do it > all on it’s own. Yes, but by then it is not real time. My real goal is to improve Linux time. I'm not holding my breath for a kernel module that take

Re: [time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-21 Thread Gary E. Miller
Yo Oleg! On Mon, 21 May 2018 18:05:08 +0300 Oleg Skydan <olegsky...@gmail.com> wrote: > You can use uBlox u-center software to enable and disable messages > you need, the configuration can be saved. I have not done Windows since the year 2000. Not restarting now

Re: [time-nuts] â NEO-M8N vs. NEO-M8T

2018-05-21 Thread Gary E. Miller
product > variant). Notice the: not supported for the FTS product So, not on the NEO-M8T RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588

Re: [time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-20 Thread Gary E. Miller
Yo Mark! On Mon, 21 May 2018 03:04:23 + Mark Sims <hol...@hotmail.com> wrote: > The sawtooth value is in the 0x0D-0x01 (TIM-TP) message. Third > value, called qErr. 32-bit dword. In picoseconds. How do I feed that into my TICC in real time

Re: [time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-20 Thread Gary E. Miller
tput the magic message with the data in it. Not seeing it by default. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. --

Re: [time-nuts] â NEO-M8N vs. NEO-M8T

2018-05-20 Thread Gary E. Miller
Yo Chris! On Sun, 20 May 2018 21:18:02 -0500 "Chris Caudle" <ch...@chriscaudle.org> wrote: > On Sun, May 20, 2018 9:06 pm, Gary E. Miller wrote: > >> Cranking sawtooth correction into your data will move > >> the line down most of the way to the "JLâ&qu

Re: [time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-20 Thread Gary E. Miller
ee how well the RINEX location compares > with the surveyed location and/or if using the RINEX location > improves the timing output. I'm working on using the NEO-M8T Survey-In mode now. RINEX later. RGDS GARY --- Gary E. Miller

Re: [time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-20 Thread Gary E. Miller
ying that! > GLONASS and GALILEO have not yet been tested with the M8T... gpsd works with those fine. GLONASS is no help. GALILEO can help a bit. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E,

Re: [time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-20 Thread Gary E. Miller
just looked at the 'U-blox 8 Receiver Description' and it makes no mention of sawtooh anything. Is that in a different doc? I'll also test Surevey-In mode to see how much that helps. RGDS GARY --- Gary E. Miller Rellim 109 NW W

[time-nuts] ✘NEO-M8N vs. NEO-M8T

2018-05-20 Thread Gary E. Miller
hours of data. The results were disappointing. See attached. For 8x the price all I see is a slightly flatter ADEV curve. The M8T also support raw data, so I can try to use it for RINEX files. RGDS GARY --- Gary E. Miller

Re: [time-nuts] WTB: HP/Agilent/Symmetricom 58517A Distribution Amplifier

2018-05-18 Thread Gary E. Miller
over the gain lost in the splitters. The ones I have tested so far have all seriously degraded my SNRs. Anyone know of a cheap and good L1/L2/etc. LNA? RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend,

Re: [time-nuts] TruePosition GPSDO Holdover Issues

2018-05-15 Thread Gary E. Miller
Hal! On Tue, 15 May 2018 12:52:58 -0700 Hal Murray <hmur...@megapathdsl.net> wrote: > Neat. Thanks. That raises several questions. > How high do satellites get if you are at a pole? 44.6 degrees. RGDS GARY --

Re: [time-nuts] Ublox Galileo/Beidou PRNs

2018-05-11 Thread Gary E. Miller
rDescrProtSpec_(UBX-13003221).pdf' Appendix A. It's ugly. Have a stiff drink first for courage. The future is gnsid:svid. Someday... RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR

Re: [time-nuts] Help Identifying this surplus Timing Module

2018-05-11 Thread Gary Chatters
A little Googling found a two page datasheet. It doesn't tell you much more than what you already found out, but does have specifications. I can't figure out the correct link to include here, but a Google search with the string "ATiMe-s 38.88" (don't include the quotes) should bring up the

Re: [time-nuts] nuts about position

2018-04-30 Thread Gary E. Miller
eansurements. The LEA-6T allows UBX_RAW_RATE, but the NEO-M8N does not. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas l

Re: [time-nuts] nuts about position

2018-04-26 Thread Gary E. Miller
Scott! On Thu, 26 Apr 2018 10:04:54 -0700 Scott McGrath <scmcgr...@gmail.com> wrote: > Swiftnav has a centimeter accurate multi band receiver RTK-585. Its > about 600 bucks minus antenna. Link? With RTK in the name it prolly needs a base and rover? Or post processing

Re: [time-nuts] Cheap jitter measurements

2018-04-25 Thread Gary E. Miller
Tom! On Wed, 25 Apr 2018 04:01:10 -0700 "Tom Van Baak" <t...@leapsecond.com> wrote: > Hi Gary, > > > A little coding later and there are nice plots. They were compared > > to the output of tvb's adev.c program. Results are similar. > > Whoa th

Re: [time-nuts] Cheap jitter measurements

2018-04-25 Thread Gary E. Miller
? But similar at 10k seconds? Comments? RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. -- Quid est veritas

Re: [time-nuts] Weird Stuff Warehouse shutting down

2018-04-12 Thread gary
I was at Weird Stuffabout a month ago. Picked up a heavy microscope base. Those are the things you really don't want to buy on ebay. To be honest, I wasn't finding much there. My dentist is nearby, and that was when I would check them out. How old is the stuff on their racks? Remember Bay

[time-nuts] Chinese GPS Survey Antenna

2018-04-10 Thread Gary E. Miller
as roughly comparable. Except I get stronger GALILEO on the TOPGNSS. I have no way to push either antenna to the limit. Many thanks to the list for some fine product suggestions. Add this one to the list. RGDS GARY --- Gary E. Miller

Re: [time-nuts] Cheap jitter measurements

2018-04-10 Thread Gary E. Miller
s 10's of ns, or more, depending on your CPU. Probably better discussed on the gpsd-users@ or NTPsec devel@ mailing list. 67 ns not exactly time-nuts precision. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Su

Re: [time-nuts] Cheap jitter measurements

2018-04-09 Thread Gary E. Miller
ook like. Yeah, but the granularity is much worse. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. -- Quid est veritas?

Re: [time-nuts] Weird Stuff Warehouse shutting down

2018-04-07 Thread Gary E. Miller
Yo Richard! On Sat, 7 Apr 2018 14:17:42 -0700 "Richard (Rick) Karlquist" <rich...@karlquist.com> wrote: > On 4/7/2018 10:54 AM, Gary E. Miller wrote: > > > > Sad news. Weird Stuff, Haltek, and Halted were integral parts of > > the Silicon Valley ecosystem.

Re: [time-nuts] Weird Stuff Warehouse shutting down

2018-04-07 Thread Gary E. Miller
and Halted were integral parts of the Silicon Valley ecosystem. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. -- Q

Re: [time-nuts] Environmental sensor recommendations

2018-04-05 Thread Gary E. Miller
re looking at list prices, they are a lot cheaper on ebay. But yes, pressure is nice to have. Next time I need a sensor I'll try the USB-PA. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend,

Re: [time-nuts] Environmental sensor recommendations

2018-04-04 Thread Gary E. Miller
and a remote temperature sensor. The TEMPer1F_H1 has a remote etmperature/humidity sensor. The basic TEMPerGold has one temp sensor, is the size of a thumbdrive and costs under $10. All easy to use. Gotta be careful, a ton of slightly different versions on the market

Re: [time-nuts] Cheap jitter measurements

2018-04-04 Thread Gary E. Miller
. Not a total solution, I still need to add a GPSDO and cable it all together. Now I just have to wait for the postman. Once again, thanks for all the suggestions. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave

Re: [time-nuts] Cheap jitter measurements

2018-04-04 Thread Gary E. Miller
st almost as much as a car when I bought it. > The Rigol DS1102E is/was quite popular and is good for close to a > ns. Nice, but not quite fast enough. I've settled on the Rb+TAPR-TICC solution. RGDS GARY --- Gary E. Mille

[time-nuts] Cheap jitter measurements

2018-04-03 Thread Gary E. Miller
GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. -- Quid est veritas? "If you can’t measure it, you can’t im

Re: [time-nuts] Teardown of Chinese made eBay GPS antenna.

2018-03-28 Thread Gary E. Miller
l 23dB or so. Then I can stop swapping L1/L2 and L1/GLONASS antennas. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas l

Re: [time-nuts] eBay GPS antennas

2018-02-16 Thread Gary E. Miller
a little close and hurt GALILEO performance. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. -- Quid es

Re: [time-nuts] GPS Jamming

2018-01-29 Thread Gary E. Miller
Yo Gary! On Fri, 26 Jan 2018 07:57:02 -0700 Gary Neilson <g...@deepskyridge.com> wrote: > Don't know if this has be posted before or not. Also don't know if > this will affect timing info. I am a commercial pilot in Bend, OR. There is a lot of 'GPS testing' going on in Fallon, NV.

[time-nuts] GPS Jamming

2018-01-29 Thread Gary Neilson
Don't know if this has be posted before or not. Also don't know if this will affect timing info. GPS Jamming <http://www.thedrive.com/the-war-zone/17987/usaf-is-jamming-gps-in-the-western-u-s-for-largest-ever-red-flag-air-war-exercise> I am on the very edge of their coverage map.

Re: [time-nuts] Microsemi 3120A sold on eBay

2018-01-28 Thread Gary Woods
On Sat, 27 Jan 2018 22:10:21 -0500, you wrote: >It is interesting to note that the seller is in Salem, MA, a few miles south >of Microsemi in Beverly, MA. OT, a bit: my ham radio elmer worked for Bomac in Beverly, MA, which became Varian, which I just googled and indeed was bought at least in

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

2018-01-22 Thread Gary E. Miller
you can get a RasPi and a u-blox-8 hat. Add a few bits here and there and you have a nifty stratum 1. You'll find its harder than it looks to make a better NTP than that combo. Then, once you have a strong baseline, you can see what tricks you can do to improve on that

Re: [time-nuts] HP nixie counters, free!

2018-01-05 Thread Gary Chatters
. Of course, the 500 MHz one isn't useful, but the 3 GHz or video amplifier plugins could be used. Gary [...] ___ 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] Oscilloquartz OSA-4350 GPSDO

2017-12-31 Thread Gary Woods
On Sun, 31 Dec 2017 20:56:26 +0100, you wrote: > Without a thermal camera I've used a 4-1/2 digit DVM set for 200mV full > scale, or 20mV if you can do that. Often the low uV resolution will allow you > to trace the current path, just start at the power and ground inputs to the > board and

Re: [time-nuts] accurate 60 hz reference chips/ckts

2017-12-16 Thread Gary E. Miller
igital clock. Once a day they manually get the AC clock to agree with the digital clocl. None of this is rocket science, don't use it for anything you need any accuracy for. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington A

Re: [time-nuts] ublox NEO-M8T improved by insulated chamber?

2017-11-08 Thread Gary E. Miller
eep you busy for a few days. Yup, I will, thanks. Now when was the last time you did that absolute calibration of a GPS receiver to UTC? Can we see the results? RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite

Re: [time-nuts] ublox NEO-M8T improved by insulated chamber?

2017-11-08 Thread Gary E. Miller
Yo Chris! On Wed, 8 Nov 2017 11:47:05 -0600 "Chris Caudle" <ch...@chriscaudle.org> wrote: > On Wed, November 8, 2017 10:45 am, Gary E. Miller wrote: > > No one here has yet bothered to address the issues I raise > > in Section 3.3.4. > > Sure they did. Wh

Re: [time-nuts] ublox NEO-M8T improved by insulated chamber?

2017-11-08 Thread Gary E. Miller
Yo jimlux! On Wed, 8 Nov 2017 06:33:19 -0800 jimlux <jim...@earthlink.net> wrote: > On 11/7/17 8:39 PM, Gary E. Miller wrote: > > Yo Tom! > > > > On Tue, 7 Nov 2017 20:16:09 -0800 > > "Tom Van Baak" <t...@leapsecond.com> wrote: > >

Re: [time-nuts] ublox NEO-M8T improved by insulated chamber?

2017-11-07 Thread Gary E. Miller
t to 100 nines, but if the transmitted GPS time to UTC time offset is said, by the US Military, to be only 90 ns (one sigma), then I'd listen to them when it matters. Time for us all to actually read the standard and argue what that means. RGDS GARY ---

Re: [time-nuts] ublox NEO-M8T improved by insulated chamber?

2017-11-07 Thread Gary E. Miller
d sat angles, the 3m location change will be trigonomically smaller for a sat at an angle. But, as I said, given that GPS only resolves to 90 ns, the worst case +/- 13 ns is noise. RGDS GARY --- Gary E. Miller Rellim 109 NW Wi

Re: [time-nuts] ublox NEO-M8T improved by insulated chamber?

2017-11-07 Thread Gary E. Miller
o the published GPS time resolution (IS_GPS_200H, page 54) of 90 ns. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberab

Re: [time-nuts] ublox NEO-M8T improved by insulated chamber?

2017-11-02 Thread Gary E. Miller
3U I use that, and an incadescent light bulb, to stabilize my GPS and XO temps in my chamber. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588

Re: [time-nuts] Designing an embedded precision GPS time server

2017-10-25 Thread Gary E. Miller
the usual Linux stuff. > Anybody have any ideas or suggestions along these lines? This may be not time-nutty enough for here. Feel free to contact me off list. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington A

Re: [time-nuts] inexpensive, black box, GPS or NTP based TTL time capture?

2017-10-18 Thread Gary E. Miller
in bulk, Plus labor, which after the first one is small. > For getting started, you also need: > SD card reader/writer > keyboard and mouse (Pi has USB) > display adapter (Pi is HDMI) > display Yeah, just for setup. Shall we includ

Re: [time-nuts] inexpensive, black box, GPS or NTP based TTL time capture?

2017-10-18 Thread Gary E. Miller
get a Raspberry Pi, a GPS HAT, and connect your input to a GPIO pin. Configure ntpd to log the real PPS and the input as another 'PPS'. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703

Re: [time-nuts] Machining some aluminum help!

2017-07-28 Thread Gary E. Miller
st you get some real cutting fluid. The threads will be smoother. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos.

[time-nuts] Too many GPSDO's

2017-07-21 Thread Gary Neilson
I have more GPSDO's than I need. I have a Trimble Thunderbolt that I would like to trade for a quality 10mhz Rubidium unit. It also comes with a power supply and a Antenna. Let me know what you have. Thanks Gary Neilson ___ time-nuts mailing

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

2017-07-19 Thread Gary Neilson
This is very interesting, I have a 5370B that has the same behavior as yours. I will take the input board out again and give it a good inspection. BTW, what did you use to clean the adhesive from the pads ? Thanks Gary On 7/18/2017 2:41 AM, Thomas Allgeier wrote: Hello All Again, I’ve got

Re: [time-nuts] WWVB & Eclipse

2017-07-14 Thread Gary E. Miller
n the gpsd RTCM and NTRIP code. Feel free to contact me off list if yuo think I can be helpful. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588

[time-nuts] HP 15265A Test Box

2017-07-08 Thread Gary Neilson
I purchased a HP 8082A pulse generator from Ebay as not working, it works fine, pilot lamp is burned out. Part of the alignment procedure is to use a 15265A Test Box, does anyone have a schematic for this unit ? Thanks Gary ___ time-nuts mailing

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

2017-07-03 Thread Gary Neilson
an alignment performed. I will get to that soon. Good Luck Gary - K5DSR Forwarded Message Subject:[time-nuts] 5370B Question / help needed Date: Sat, 1 Jul 2017 21:12:27 +0100 From: Thomas Allgeier <th.allge...@gmail.com> Reply-To: Discussion of precise time and fre

Re: [time-nuts] Two pieces of old General Radio Freq. Nuts

2017-05-26 Thread Gary Woods
ole row of, I think, 6AK5s in it. -- Gary Woods AKA K2AHC- PGP key on request, or at home.earthlink.net/~garygarlic Zone 5/4 in upstate New York, 1420' elevation. NY WO G --- This email has been checked for viruses by AVG. http://www.avg.com ___ tim

[time-nuts] HP 55300A

2017-05-15 Thread Gary Neilson
I have a HP 55300A GPSDO that works well except for having the wrong date. It does not decode the date from the GPS correctly. It has firmware 3704-D. This appears to be pre Y2K. Does anybody have newer firmware for one of these. ? Gary ___ time

Re: [time-nuts] Network Time Foundation

2017-05-13 Thread Gary E. Miller
s being more activly worked on than NTP Classic and has many new features like ntpmon and ntpviz. It is readily available over git: https://www.ntpsec.org/ https://github.com/ntpsec/ntpsec RGDS GARY --- Gary E. Miller Rellim 109 N

[time-nuts] Last notice for live online class, Phase Noise Fundamentals

2017-04-13 Thread Gary Giust
oupon code TIMENUTS1704 to receive 10% off (coupon is only valid for the April class). If any questions, please call or message me at https://www.jitterlabs.com/company/contact Best regards, Gary Giust JitterLabs Class syllabus follows -- PART 1: BASIC CONCEPTS Measures

[time-nuts] live online phase-noise class; general interest articles

2017-03-23 Thread Gary Giust
l.com/articles/27224-measuring-phase-noise-with-baluns If any questions, please contact me off list. Best regards, Gary Giust JitterLabs ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman

Re: [time-nuts] Four hour cycle in GPS NMEA jitter

2017-03-20 Thread Gary E. Miller
t-up.html RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. -- Quid est veritas? "If you can’t measure

Re: [time-nuts] Smart Phone time display accuracy...?

2017-03-17 Thread Gary Woods
On Thu, 16 Mar 2017 20:11:30 -0400, you wrote: >Notice Gary doesn't specify which brand of Android phone, much less >the specific model and carrier Sorry about that, and I should know better (In another group "FlDigi won't work with my radio" and nothing else...). Droid Razr M

Re: [time-nuts] Smart Phone time display accuracy...?

2017-03-16 Thread Gary Woods
. I have a GPS time app that shows the difference between GPS and phone time and it's always in the tenths of a second area. -- Gary Woods O- K2AHC Public keys at home.earthlink.net/~garygarlic, or get 0x1D64A93D via keyserver fingerprint = E2 6F 50 93 7B C7 F3 CA 1F 8B 3C C0 B0 28 68 0B

Re: [time-nuts] Bye-Bye Crystals

2017-03-13 Thread Gary Woods
c plus to put it into the 40-meter CW band; worked fine! IOW, not a trivial thing. -- Gary Woods AKA K2AHC- PGP key on request, or at home.earthlink.net/~garygarlic Zone 5/4 in upstate New York, 1420' elevation. NY WO G --- This email has been checked for viruses by AVG. http:

Re: [time-nuts] ``direct'' RS-232 vs. RS-232 via USB vs. PPS decoding cards

2017-02-16 Thread Gary E. Miller
ose sat lock, or lep second, or UTC offset now and then. Best practice is to have at least 3 other network chimers configured. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim

Re: [time-nuts] ``direct'' RS-232 vs. RS-232 via USB vs. PPS decoding cards

2017-02-16 Thread Gary E. Miller
zed > >> for it). > > But PTP requires special hardware. You may not have this. No, PTP works optimally with special hardware, it can work with any ethernet port. I will give you that software mode PTP is no more accurate than plain NTPv4. RGDS GARY --

Re: [time-nuts] ``direct'' RS-232 vs. RS-232 via USB vs. PPS decoding cards

2017-02-13 Thread Gary E. Miller
an get to 1 micro second. On a RasPi using GPIO you can get to 500 nano second. Data available on request, but better on the de...@ntpsec.org list. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E,

Re: [time-nuts] Vintage Frequency Measurement

2017-02-12 Thread Gary Woods
or update; still had the ART-13/BC-348 combo with an LM freq meter. -- Gary Woods AKA K2AHC- PGP key on request, or at home.earthlink.net/~garygarlic Zone 5/4 in upstate New York, 1420' elevation. NY WO G ___ time-nuts mailing list -- time-nuts@febo.co

Re: [time-nuts] eLoran is up and operating. Looking good

2017-02-07 Thread Gary E. Miller
at has a device that could use an improved NTP driver. > Coming up with some simple to use tools to estimate the errors and > config them in is likely the only practical way to do it. NTPsec has done a lot of recent work on tools. We are open to any suggestions or requests that people

[time-nuts] HP 55300A Date Problem

2017-01-21 Thread Gary Neilson
of firmware available for this unit ? Thanks Gary - K5DSR ___ 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] hm H Maser

2017-01-13 Thread Gary Woods
Hydrogen maser in radio astronomy to sync worldwide systems: http://flip.it/rmbdRQ (Lifted from the Albany, NY astronomy group). -- Gary Woods O- K2AHC Public keys at home.earthlink.net/~garygarlic, or get 0x1D64A93D via keyserver fingerprint = E2 6F 50 93 7B C7 F3 CA 1F 8B 3C C0 B0 28

[time-nuts] Datum 9520-1000

2017-01-12 Thread Gary Neilson
I am looking for documentation for a Datum 9520-1000 time code display. Thanks Gary ___ 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] Survey plot as art.

2017-01-09 Thread Gary E. Miller
ograms I'm using for comparison as well. But I agree, moving off topic for time-nuts. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588

Re: [time-nuts] Survey plot as art.

2017-01-09 Thread Gary E. Miller
Yo Tom! On Mon, 9 Jan 2017 14:01:18 -0800 "Tom Van Baak" <t...@leapsecond.com> wrote: > Hi Gary, > > > Clearly the Adafruit is not high accuracy. I have played with some > > short baseline DGPS (cm level data) and not found any issue with > > antenn

Re: [time-nuts] Survey plot as art.

2017-01-09 Thread Gary E. Miller
eiver behavior its a cleaner setup to use a GPS > signal splitter (or basic RF splitter with suitable DC-blocks). Care to recommend any that have SMA connectors? I have found that a 3dB difference in antenna can degrade my data quality, it would be interesting to see

Re: [time-nuts] Survey plot as art.

2017-01-08 Thread Gary E. Miller
'm looking at. > > https://www.febo.com/pipermail/time-nuts/attachments/20170108/051ba89d/attachm > ent-0003.png Yup. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim

Re: [time-nuts] Survey plot as art.

2017-01-08 Thread Gary E. Miller
er > NMEA specs support more digits past the decimal point. Receivers > that support native binary formats that report lat/lon as 32-bit > floats show similar quantization. Yes, easy to see the quantization in the A

Re: [time-nuts] Survey plot as art.

2017-01-08 Thread Gary E. Miller
part of the gpsd package, feel free to do yooou own plots. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. --

Re: [time-nuts] Survey plot as art.

2017-01-08 Thread Gary E. Miller
. To bring this back to time-nuttery, when the TDOP hit 32.6 I can see a 2 micro Second spike in NTP jitter. So for that small period in time my Raspberry Pi clock was more stable than my PPS. RGDS GARY --- Gary E. Miller Rellim

Re: [time-nuts] Survey plot as art.

2017-01-07 Thread Gary E. Miller
a splitter. Ah. Got it. Thank you. Same model GPS? RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. -- Qui

Re: [time-nuts] Survey plot as art.

2017-01-07 Thread Gary E. Miller
s in the sky their signal may be bouncing off a nearby steel building and into your antenna. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588

Re: [time-nuts] Survey plot as art.

2017-01-07 Thread Gary E. Miller
ultipath rejection. And I can easily change my GPS, but chaning my geoplogy is a lot harder. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588

Re: [time-nuts] Survey plot as art.

2017-01-07 Thread Gary E. Miller
, very differently looking plots. I'll admit to never generating plots over the same time interval, I'll start a 24 hour test of two GPS right now. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend,

Re: [time-nuts] Survey plot as art.

2017-01-07 Thread Gary E. Miller
24 plot from a stationary GlobalSat MR-350P I find these plots very useful when comparing GPS models. RGDS GARY --- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1

Re: [time-nuts] Temperature (environmental) sensors

2017-01-05 Thread Gary E. Miller
ython runs on pretty much anything half-way sane. pyusb runs on Linux, Windblows, OS X, and most POSIX systems. The paranoids will want to run Wireshark in USB capture mode to be sure nothing devious is going on. RGDS V

Re: [time-nuts] Temperature (environmental) sensors

2017-01-05 Thread Gary E. Miller
inary packet is sent to the device and it returns a binary packet with the data. I can't speak to how it works on anything but Linux. I've never seen the TEMPer interfere with anything. RGDS Veritas liberabit vos GARY

Re: [time-nuts] Temperature (environmental) sensors

2017-01-05 Thread Gary E. Miller
companies make TEMPer's so YMMV. But hard to go wrong for $9. RGDS Veritas liberabit vos GARY Quid est veritas? --- Gary E

Re: [time-nuts] SR620 Failure Code.

2016-12-22 Thread Gary Woods
On Thu, 22 Dec 2016 16:50:17 -0500, you wrote: >That's just crazy, but that was the problem. It's documented, so it's not a bug. -- Gary Woods AKA K2AHC- PGP key on request, or at home.earthlink.net/~garygarlic Zone 5/4 in upstate New York, 1420' elevation. NY W

Re: [time-nuts] RPi/ beagle bone-like computer without video

2016-11-30 Thread Gary Chatters
prices. Gary On 11/30/2016 03:42 PM, jimlux wrote: I'm looking for a small linux single board - similar to RPi or Beaglebone Black, but don't need the HDMI, or video stuff. Preferably without weird connectors, and available for wide temperature ranges (it's for a data logger/collector in the field

Re: [time-nuts] Google public NTP service

2016-11-30 Thread Gary E. Miller
Yo Tom! On Wed, 30 Nov 2016 13:06:06 -0800 "Tom Van Baak" <t...@leapsecond.com> wrote: > From Gary Miller: > > You gotta start sometime. Now is a good time. This is not the > > first time Google has done this, and certainly will not be the > > las

Re: [time-nuts] Google public NTP service

2016-11-30 Thread Gary E. Miller
Yo Poul-Henning! On Wed, 30 Nov 2016 21:01:44 + "Poul-Henning Kamp" <p...@phk.freebsd.dk> wrote: > > In message <20161130125857.7229b...@spidey.rellim.com>, "Gary E. > Miller" writes : > > >Not 'odd'. Fully specified in the RFC. A

Re: [time-nuts] Best Chance GPS module

2016-11-30 Thread Gary E. Miller
TO that does exactly what you want. You can download a git copy of it: https://gitlab.com/NTPsec/stratum-1-microserver-howto I have 4 RasPis with various GPS attached, and an Orange Pi to add soon. Works great. RGDS GARY --- Ga

Re: [time-nuts] Google public NTP service

2016-11-30 Thread Gary E. Miller
ec gets what they deserve. IMHO, better for a packet that can be misinterpreted be dropped, Like the new non-standard Google NTP. Unmarked these new packets can cause havoc. But, to be fair, some assert the spec is a bit ambiguous. So any extention should be a new RFC. Like Autokey

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