Hi > On Jul 13, 2017, at 11:06 PM, William H. Fite <omniryx@gmail.com> wrote: > > Did I put my foot in it? It was a sincere question. No I don’t think you did. If I implied otherwise, I’m sorry for the imprecision of what I wrote. I’m not at all sure of what one would see. I’m only guessing that the result will be observable. Bob > > > On Thursday, July 13, 2017, Bob kb8tq <kb8tq@n1k.org> wrote: > >> Hi >> >> I think we are both taking it as a given that the eclipse’s impact on the >> ionosphere will >> be “visible” even with a fairly simple setup. I guess that might qualify >> for a very loose >> definition of the term “hypothesis” in my case. I can’t speak for Tom. >> >> Bob >> >>> On Jul 13, 2017, at 6:24 PM, William H. Fite <omniryx@gmail.com >> <javascript:;>> wrote: >>> >>> Tom, are some specific hypotheses being tested or is this purely >>> exploratory? >>> >>> Bill >>> >>> >>> On Thursday, July 13, 2017, Tom Van Baak <tvb@leapsecond.com >> <javascript:;>> wrote: >>> >>>> The trick is to just run the timing receiver in all-in-view mode >>>> collecting 1PPS data against your house standard as usual, but also >> capture >>>> all the binary message(s) where the per-SV Az/El/SNR and phase residuals >>>> are reported. This allows you to re-create the individual "1PPS" from >> each >>>> SV used in the timing solution. Or maybe just use the RINEX data. This >> is >>>> what I was referring to in the CORS reference to Brooke. >>>> >>>> It would be "cheating" to know the eclipse path ahead of time and mine >> the >>>> data for confirmation. Instead I dare you to blindly mine the GPS data >> for >>>> all of August and then make a bold claim when and where the eclipse was, >>>> like capturing a trace through a cloud chamber. Having done all that you >>>> can "look in the back of the book" for the actual eclipse path to see >> how >>>> right you were. >>>> >>>> /tvb >>>> >>>> ----- Original Message ----- >>>> From: "Bob kb8tq" <kb8tq@n1k.org <javascript:;> <javascript:;>> >>>> To: "Tom Van Baak" <tvb@leapsecond.com <javascript:;> <javascript:;>>; >> "Discussion of >>>> precise time and frequency measurement" <time-nuts@febo.com >> <javascript:;> <javascript:;> >>>>> >>>> Sent: Thursday, July 13, 2017 3:01 PM >>>> Subject: Re: [time-nuts] WWVB & Eclipse >>>> >>>> >>>> Hi >>>> >>>> If one perhaps knew the path of the eclipse in advance *and* had a GPS >>>> timing receiver that >>>> could be set somehow to look at a single satellite….. all one would need >>>> is a means of comparing >>>> the output to a stable reference to *possibly* observe something >>>> interesting. >>>> >>>> More or less: You know the path of eclipse roaring along bashing the >>>> ionosphere. You can (maybe) >>>> pick a sat who’s signal traverses that region while getting to your >>>> location during the eclipse. Yes, it’s >>>> not original science. It might still be fun. >>>> >>>> Bob >>>> >>>> >>>> >>>>> On Jul 13, 2017, at 5:55 PM, Tom Van Baak <tvb@LeapSecond.com> wrote: >>>>> >>>>> Brooke, >>>>> >>>>> Nice set of links. Thanks. There's a poster here with an overview: >>>>> >>>>> https://cedarweb.vsp.ucar.edu/wiki/images/6/60/Magdalina_ >>>> Moses-Eclipse_Research_CEDAR_Poster.pdf >>>>> >>>>>> Is there a study based on GPS observations? >>>>> >>>>> It will all be there for free in CORS. It's just a matter of mining the >>>> data. >>>>> Apparently this is done a lot. Here are some random examples of what >> can >>>> be done. Pretty amazing. >>>>> >>>>> https://www.ngs.noaa.gov/PUBS_LIB/2005_01_ION_NTM_Ionosphere.pdf >>>>> http://www.gps.gov/cgsic/smg/2004/smith.pdf >>>>> https://arxiv.org/pdf/1006.3565.pdf >>>>> >>>>> Google for a subset of words like: CORS Ionosphere Monitoring Analysis >>>> Modeling TEC >>>>> >>>>> /tvb >>>>> >>>>> ----- Original Message ----- >>>>> From: "Brooke Clarke" <brooke@pacific.net <javascript:;> >> <javascript:;>> >>>>> To: "Discussion of precise time and frequency measurement" < >>>> time-nuts@febo.com <javascript:;> <javascript:;>> >>>>> Sent: Thursday, July 13, 2017 1:35 PM >>>>> Subject: [time-nuts] WWVB & Eclipse >>>>> >>>>> >>>>>> Hi: >>>>>> >>>>>> There's a massive experiment relating to the strength of WWVB and a >>>> transmitter in Dixon California. >>>>>> >>>>>> https://www.washingtonpost.com/news/speaking-of-science/ >>>> wp/2017/07/12/a-massive-atmospheric-experiment-is- >>>> planned-for-august-solar-eclipse/?utm_term=.4d7101b869f6 >>>>>> >>>>>> http://eng.umb.edu/~eclipsemob/index.php <http://eng.umb.edu/% >>>> 7Eeclipsemob/index.php> >>>>>> >>>>>> http://www.hamsci.org/sites/default/files/publications/ >>>> 2017_IES_Liles.pdf >>>>>> This article says Dixon may transmit at 55.1 and 135.95 kHz. >>>>>> >>>>>> The EclipseMob receiver works with a smart phone acting as an SDR. as >>>> well as the source of it's position and the >>>>>> date-time of observation. >>>>>> >>>>>> There is a parallel study based on ham radio WSPRNet and Reverse >> Beacon >>>> Network. >>>>>> http://hamsci.org/ >>>>>> >>>>>> Is there a study based on GPS observations? >>>>>> >>>>>> -- >>>>>> Have Fun, >>>>>> >>>>>> Brooke Clarke, N6GCE >>>>>> http://www.PRC68.com >>>>>> http://www.end2partygovernment.com/2012Issues.html >>>>>> >>>>>> _______________________________________________ >>>>>> time-nuts mailing list -- time-nuts@febo.com <javascript:;> >> <javascript:;> >>>>>> 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 <javascript:;> >> <javascript:;> >>>>> 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 <javascript:;> >> <javascript:;> >>>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >>>> mailman/listinfo/time-nuts >>>> and follow the instructions there. >>>> >>> >>> >>> -- >>> William H Fite, PhD >>> Independent Consultant >>> Statistical Analysis & Research Methods >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com <javascript:;> >>> 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 <javascript:;> >> To unsubscribe, go to https://www.febo.com/cgi-bin/ >> mailman/listinfo/time-nuts >> and follow the instructions there. >> > > > -- > William H Fite, PhD > Independent Consultant > Statistical Analysis & Research Methods > _______________________________________________ > 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.

I have a CSI MBX-3 DGPS beacon receiver that I have been playing around with lately. It works quite well and I have a very basic shell of a program written in python to control it and get some basic performance details of it's MF receiver but so far still trying to get anything out of the binary RTCM data stream. At the least I will be able to collect beacon signal strength and SNR. Of course the data shows the expected diurnal variation. At the very least I will be able to monitor this aspect of the effect of eclipse before, during, and after. I would like to be able to extract the data within binary data stream and am slowly working my way the RTKLIB apps in an effort to do so. My objective is peripherally related to time nuttery but more so directed towards radio propagation and space weather. If anyone has already gone down this path, please point me in the right direction. There is an interesting project run through the University of New Brunswick called CHAIN - Canadian High Arctic Ionospheric Network. CHAIN uses high data rate GNSS Ionospheric Scintillation and Total electron content monitors plus advanced digital ionosondes to collect their data. cheers, Graham ve3gtc On 2017-07-13 21:52, Azelio Boriani wrote: > Also DGPS stations logging: > <https://www.hfunderground.com/board/index.php/board,32.0.html> > > On Thu, Jul 13, 2017 at 10:35 PM, Brooke Clarke <brooke@pacific.net> wrote: >> Hi: >> >> There's a massive experiment relating to the strength of WWVB and a >> transmitter in Dixon California. >> >> https://www.washingtonpost.com/news/speaking-of-science/wp/2017/07/12/a-massive-atmospheric-experiment-is-planned-for-august-solar-eclipse/?utm_term=.4d7101b869f6 >> >> http://eng.umb.edu/~eclipsemob/index.php >> <http://eng.umb.edu/%7Eeclipsemob/index.php> >> >> http://www.hamsci.org/sites/default/files/publications/2017_IES_Liles.pdf >> This article says Dixon may transmit at 55.1 and 135.95 kHz. >> >> The EclipseMob receiver works with a smart phone acting as an SDR. as well >> as the source of it's position and the date-time of observation. >> >> There is a parallel study based on ham radio WSPRNet and Reverse Beacon >> Network. >> http://hamsci.org/ >> >> Is there a study based on GPS observations? >> >> -- >> Have Fun, >> >> Brooke Clarke, N6GCE >> http://www.PRC68.com >> http://www.end2partygovernment.com/2012Issues.html >>

    Veritas liberabit vos. -- Quid est veritas?
"If you can’t measure it, you can’t improve it." - Lord Kelvin

Yo Graham! On Sat, 15 Jul 2017 01:04:05 +0000 Graham <planophore@aei.ca> wrote: > I have a CSI MBX-3 DGPS beacon receiver that I have been playing > around with lately. Is this the programming manual for what you have? http://www.saderet.co.uk/Admin/Manual/m_mbx3.pdf > but so far still trying to > get anything out of the binary RTCM data stream. You no longer need a GPS to get the RTCM data, it is available in real time on the internet. Of course it is more fun to get it off your GPS. You just need an ntrip client: https://en.wikipedia.org/wiki/Networked_Transport_of_RTCM_via_Internet_Protocol > I would like to be able to extract the data within binary data stream > and am slowly working my way the RTKLIB apps in an effort to do so. [...] > If anyone has already gone down this path, please point me in the > right direction. I have worked on 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 gem@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. -- Quid est veritas? "If you can’t measure it, you can’t improve it." - Lord Kelvin