Hi Jim,
On 03/01/2016 03:24 PM, jimlux wrote:
On 2/29/16 10:56 PM, Magnus Danielson wrote:
On 02/29/2016 11:31 AM, Martin Burnicki wrote:
Hal,
Hal Murray wrote:
martin.burni...@burnicki.net said:
Strange that at least 3 independant firmware trees/development
teams should
chose the same
On 2/29/16 10:56 PM, Magnus Danielson wrote:
On 02/29/2016 11:31 AM, Martin Burnicki wrote:
Hal,
Hal Murray wrote:
martin.burni...@burnicki.net said:
Strange that at least 3 independant firmware trees/development
teams should
chose the same magic wk860.
I don't find it strange. If the
Hi
Take a look at math libraries and things like printf libraries. Each time
somebody
writes one, there are a group of bugs that come up again and again. Yes, you
would *think* each group would come up with creative *new* errors … not so
much.
There are always obvious assumptions that turn
On 02/29/2016 11:31 AM, Martin Burnicki wrote:
Hal,
Hal Murray wrote:
martin.burni...@burnicki.net said:
Strange that at least 3 independant firmware trees/development teams should
chose the same magic wk860.
I don't find it strange. If the next firmware version is based on the
previous
Funny how apparently Trimble were involved in the wk860 problem, I thought they
famously used their leap second based rollover protection:
http://www.google.co.uk/patents/US5923618 :) Maybe that algorithm isn't that
smart after all.
Thanks,
Wojciech
Original Message
Hal,
Hal Murray wrote:
>
> martin.burni...@burnicki.net said:
>>> Strange that at least 3 independant firmware trees/development teams should
>>> chose the same magic wk860.
>
>> I don't find it strange. If the next firmware version is based on the
>> previous version and none of the developers
via the Samsung Galaxy S®6 active, an AT 4G LTE smartphone
Original message
From: Magnus Danielson <mag...@rubidium.dyndns.org>
Date: 2/27/2016 10:54 AM (GMT-08:00)
To: time-nuts@febo.com
Cc: mag...@rubidium.se
Subject: Re: [time-nuts] GPS Outage..
Hi Jim,
On 02/27/2016 06
.
Sent via the Samsung Galaxy S®6 active, an AT 4G LTE smartphone
Original message From: Magnus Danielson <mag...@rubidium.dyndns.org>
Date: 2/27/2016 10:54 AM (GMT-08:00) To: time-nuts@febo.com Cc:
mag...@rubidium.se Subject: Re: [time-nuts] GPS Outage..
Hi Jim,
On 02/27/2
In message , Bob Camp writes:
>(Stratum 1,2,3) is based on various timing sources. It also was
>designed in an era of “top down” timing. That is a very different
>approach than the “bottom up” timing of the over the air codes
>on CDMA or some
Hi
All CDMA systems are directly locked to GPS time. None of them do the Gold Code
sync based on central office timing. Prior to CDMA, the AMPS system was
frequency
domain based not time. Those basestations did not use anything more than an OCXO
to keep them up and running on the wireless side
Hi Jim,
On 02/27/2016 06:14 PM, jimlux wrote:
On 2/26/16 11:34 PM, Hal Murray wrote:
How many of them came from E-911 stations?
E-911 triangulation done on cell towers …
I was thinking of the stations where they have the dispatchers who
answer the
calls
and pass the info on to the right
Tom,
On 02/27/2016 03:50 PM, Tom McDermott wrote:
The reason many cell sites went to GPS for time and frequency
synchronization is that in many cases
it was either less expensive or only possible to backhaul the cell site
traffic to the MTSO (Mobile Telephone
Switching Office) via microwave
I'd be curious to know how many carriers have a reference source other than GPS
for their "data line sync."
A few decades ago when I worked with long haul data circuits for a living the
use of in non GPS timing references still seemed fairly common in my view.
Yes I agree that some systems
Hi
The time stamps in the recordings have no connection with the triangulation
part of the system. The audio
tracks are completely independent of the “navigation”.
Bob
> On Feb 27, 2016, at 2:34 AM, Hal Murray wrote:
>
>>> How many of them came from E-911 stations?
On 2/26/16 11:34 PM, Hal Murray wrote:
How many of them came from E-911 stations?
E-911 triangulation done on cell towers …
I was thinking of the stations where they have the dispatchers who answer the
calls
and pass the info on to the right people. I think they need good timing on
the
The reason many cell sites went to GPS for time and frequency
synchronization is that in many cases
it was either less expensive or only possible to backhaul the cell site
traffic to the MTSO (Mobile Telephone
Switching Office) via microwave radio rather than wireline copper or fiber
carrier.
On 2/26/16 12:39 PM, Hal Murray wrote:
martin.burni...@burnicki.net said:
Strange that at least 3 independant firmware trees/development teams should
chose the same magic wk860.
I don't find it strange. If the next firmware version is based on the
previous version and none of the developers
Hi
Since there are at least a few hundred TBolts running around in the red cases
with the horrible switching power supplies, it’s technically only “most”. The
quick
way to tell if it’s an Andrew unit is the connectors. They are upside down on
the
Andrew units compared to the “Trimble Standard”
Hi
> On Feb 26, 2016, at 8:01 PM, Majdi S. Abbas wrote:
>
> On Fri, Feb 26, 2016 at 05:56:59PM -0500, Bob Camp wrote:
>> Cell phones since they first came out have *never ever* been setup
>> to run on anything other than GPS. Retrofitting them to use something
>> else would
>> How many of them came from E-911 stations?
> E-911 triangulation done on cell towers â¦
I was thinking of the stations where they have the dispatchers who answer the
calls
and pass the info on to the right people. I think they need good timing on
the recordings, but don't know any details.
Hi
So in the context of the original post, exactly how many Loran-C disciplined
cell phone systems were there? … errr .. none.
The *only* systems that use any sort of external disciplining are GPS based.
Self contained or “not disciplined” does not count in this case.
Bob
> On Feb 26,
On Fri, Feb 26, 2016 at 05:56:59PM -0500, Bob Camp wrote:
> Cell phones since they first came out have *never ever* been setup
> to run on anything other than GPS. Retrofitting them to use something
> else would take a decade or more. We didn’t “destroy the backup”, there
> never was one.
HI
E-911 triangulation done on cell towers …
Bob
> On Feb 26, 2016, at 7:25 PM, Hal Murray wrote:
>
>
> kb...@n1k.org said:
>> Pretty much all of our surplus gizmos are cell tower surplus (like 99.99%).
>
> How many of them came from E-911 stations?
>
>
> --
>
kb...@n1k.org said:
> Pretty much all of our surplus gizmos are cell tower surplus (like 99.99%).
How many of them came from E-911 stations?
--
These are my opinions. I hate spam.
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe,
Bob,
Nope. Cell phones have been using land-lines for ages to sync up. It was
with the CDMA stuff that GPS phase was starting to be used to
coordinate. GSM for instance does not need GPS on the base-stations, it
even goes to lengthy extends to avoid it. CDMA didn't come into much use
over
Hi Burt,
you are more than right, but don't forget the bean counters! they have
power over everything even logical thinking.
73
KJ6UHN
Alex
On 2/26/2016 8:57 AM, Burt I. Weiner wrote:
Maybe I'm misreading what you're saying, but no matter the cause, it
points out what can and does happen when
Hal,
On 02/26/2016 09:39 PM, Hal Murray wrote:
martin.burni...@burnicki.net said:
Strange that at least 3 independant firmware trees/development teams should
chose the same magic wk860.
I don't find it strange. If the next firmware version is based on the
previous version and none of the
Hi
….. ummm ….. errr …..
Cell phones since they first came out have *never ever* been setup to run on
anything other than GPS. Retrofitting them to use something else would take a
decade or more. We didn’t “destroy the backup”, there never was one. Pretty
much all of our surplus gizmos are
The official word, released a few minutes ago:
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016016 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
NAVCEN has determined that the event referenced by GPS NANU 2016012 was not a
GPS time transfer anomaly but was a user equipment
martin.burni...@burnicki.net said:
>> Strange that at least 3 independant firmware trees/development teams should
>> chose the same magic wk860.
> I don't find it strange. If the next firmware version is based on the
> previous version and none of the developers has stumbled across this
>
Hi,
On 02/26/2016 02:39 PM, jimlux wrote:
On 2/26/16 3:34 AM, Björn wrote:
"The product will not report the correct extended GPS week number
after the Feb,13th 2016.
After the rollover to week #860, the thunderbolt will not make
position for 2 hours, because the Ephemeris data on the GPS
I have an ONCORE and VP-ONCORE neither were affected by the week 860
problem
Dave
NR1DX
On 2/26/2016 6:34 AM, Björn wrote:
"The product will not report the correct extended GPS week number after the
Feb,13th 2016.
After the rollover to week #860, the thunderbolt will not make position for 2
Björn wrote:
> "The product will not report the correct extended GPS week number after the
> Feb,13th 2016.
> After the rollover to week #860, the thunderbolt will not make position for 2
> hours, because the Ephemeris data on the GPS receiver being consider
> incorrect.
> The module will work
On 2/26/16 3:34 AM, Björn wrote:
"The product will not report the correct extended GPS week number after the
Feb,13th 2016.
After the rollover to week #860, the thunderbolt will not make position for 2
hours, because the Ephemeris data on the GPS receiver being consider incorrect.
The module
would need to spend some time on this.
--
Björn
Originalmeddelande Från: Martin Burnicki
<martin.burni...@burnicki.net> Datum:2016-02-26 09:32 (GMT+01:00)
Till: time-nuts@febo.com Rubrik: Re: [time-nuts] GPS
Outage
Mark Sims wrote:
>> When is some organization
Mark Sims wrote:
>> When is some organization going to explain what happened in February for
>> almost two hours starting at 00:16 GMT? That subject has gone silent. Rob,
>> NC0B
> I heard back from NAVCEN. They said it was a Trimble issue and that Trimble
> would contact me (they didn't).
When is some organization going to explain what happened in February for almost
two hours starting at 00:16 GMT? That subject has gone silent. Rob, NC0B
Sent from my iPad
> On Feb 25, 2016, at 2:03 AM, "Michael Perrett" wrote:
>
>
>
> I think the following might be
t...@radio.sent.com said:
I think that Menlo Park is somewhat under 300 NM (nautical miles) from China
Lake (depending on exactly where the test was located), and the expected
interference range was about 252 NM. So you might have been at the edge of
the affected area. See:
The term BNM also initially confused me. It appears to be Broadcast
Notice to Mariner, a report produced by the US Coast Guard with
important warnings for ship navigation.
http://pdept.cgaux.org/Documents/Active/NS/LocalNoticeToMariners/lnm14022011.pdf
Detecting GPS interference is an interesting
What sort of gear would I need to detect a local jammer?
A GPS receiver where you can get AGC data, to see if the power in the GPS
band increased - or a SDR-radio, like the SDR-RTL at sub $20 or a
commercial GPS jamming detector.
--
Björn
___
t...@radio.sent.com said:
The term BNM also initially confused me. It appears to be Broadcast
Notice to Mariner
Thanks.
There was another similar event Wed morning:
08:15-10:00 UTC, Wed
01:15-03:00 PDT
and a shorter one from:
13:30-14:00 UTC
06:30-07:00 PDT
--
These are my
On 8/19/15 10:12 PM, Hal Murray wrote:
t...@radio.sent.com said:
I think that Menlo Park is somewhat under 300 NM (nautical miles) from China
Lake (depending on exactly where the test was located), and the expected
interference range was about 252 NM. So you might have been at the edge of
the
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
From: Hal Murray
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 GPS level?
I'm in Menlo Park California. That was mid
In message 20150819081108.08ebd406...@ip-64-139-1-69.sjc.megapath.net, Hal Mu
rray writes:
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
According to the official GPS testing (interference) website, there were tests
at China Lake scheduled for sometime(s) on August 18-20, 2015. I think that
Menlo Park is somewhat under 300 NM (nautical miles) from China Lake (depending
on exactly where the test was located), and the expected
Hi
I'd say that:
HiNOTICE ADVISORY TO NAVSTAR USERS (NANU) 2013053
SUBJ: SVN34 (PRN04) FORECAST OUTAGE SUMMARY JDAY 246/1717 - JDAY 247/0029
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2013053
NANU DTG: 040030Z SEP 2013
REFERENCE NANU: 2013052
REF NANU DTG: 291526Z AUG
On 9/6/13 8:36 PM, John C. Westmoreland, P.E. wrote:
Fellow Time Nuts:
Is this a site to be trusted?:
http://adn.agi.com/SatelliteOutageCalendar/SOFCalendar.aspx
Regards,
John W.
AGI are the folks who make and sell STK (Satellite Took Kit, I believe)
which has a dominant position in the
On 09/06/2013 05:06 AM, Chris Albertson wrote:
Can anyone estimate how many GPS jammers there are in the New England
area? There just might be thousands. I don't know.
I think the reason most people are not effected is that most GPS user
are mobile and if they are near a jammer it is only
Hi
A truck jammer isn't what you would use to take out a large area, you would
need 100,000 of that sort of jammer. Since the truckers that use them get
fired, there's a limited number of them in use….
That said, if the event is simply toggling into holdover and then immediately
popping back
On 9/6/13 4:00 AM, Bob Camp wrote:
Hi
A truck jammer isn't what you would use to take out a large area,
you would need 100,000 of that sort of jammer. Since the truckers
that use them get fired, there's a limited number of them in use….
Considering they cost $30, and they're not that easy to
and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] GPS outage?
Message-ID: 27563b77-e8c5-440c-bbba-4d118d885...@att.net
Content-Type: text/plain; charset=utf-8
John-
I agree. We all should/would have seen
even a minor outage. That's what makes the event from early this week
Trimble has confirmed to us that the nonstandard outage on PRN 4 (SVN 34)
may have caused the Resolution-T receivers to perform a reset and then
return to normal operation. They are investigating the cause but it does
explain why only some people experienced the event. Other Trimble receivers
and
You bet I'm outraged by GPS causing the death of simpler, more secure
systems like Loran. GPS has many ways to fail, but vacuum tube
transmitters
just required new tubes.
Aren't you outraged too?
Wait - this is about outages?
Never mind.
(Remembering Emily Litella / Gilda Ratner - violins in
Bill, did you forget your meds or double up on the dosage or something? ;-)
Ed
On 9/6/2013 1:07 PM, Bill Hawkins wrote:
You bet I'm outraged by GPS causing the death of simpler, more secure
systems like Loran. GPS has many ways to fail, but vacuum tube
transmitters
just required new tubes.
Hi
Ok, here's why the guy gets fired:
The trucking company doesn't do the GPS thing to catch the trucker goofing off.
They do it because they get paid to do it. A number of companies will only ship
with you *if* you can real time track the cargo and tell them when it'll get to
their dock. Why
Lisa,
Thanks for this update. How many Resolution-T receivers are out there?
Not to go off on another tangent - but I have heard something about 'GPS
jamming during the America's Cup'. Hmmm.
Regards,
John Westmoreland
On Fri, Sep 6, 2013 at 8:54 AM, Lisa Perdue perdue.l...@gmail.com wrote:
Fellow Time Nuts:
Is this a site to be trusted?:
http://adn.agi.com/SatelliteOutageCalendar/SOFCalendar.aspx
Regards,
John W.
On Fri, Sep 6, 2013 at 6:41 PM, John C. Westmoreland, P.E.
j...@westmorelandengineering.com wrote:
Lisa,
Thanks for this update. How many Resolution-T receivers
On 09/05/2013 03:37 AM, Bob Camp wrote:
Hi
My guess is that if GPS was down over the northeastern part of the US for
most of a day, you would not have to check with TimeNuts. It would be on the
evening news. Since your typical mobile GPS needs more sats than a timing
receiver, they should
Hi
Ok, I'll also mention that I haven't heard of any major volcanic eruptions in
the north eastern US. GPS outages would not make it on the news if there was a
major Volcano doing it's thing outside Cleveland ….
If a sat went down, and did so in a pathogenic fashion, you would have an issue
On 09/05/2013 01:08 PM, Bob Camp wrote:
Hi
Ok, I'll also mention that I haven't heard of any major volcanic eruptions in
the north eastern US. GPS outages would not make it on the news if there was
a major Volcano doing it's thing outside Cleveland ….
Indeed. I think the problems could
Another scenario that would result in many reports from an area like
New England is if only about a dozen people happened to be affected by
one truck that was carrying a jammer. These dozen people would
complain and from those few complaints you'd say we have a dozen
reports from all over New
Hi
You could indeed deploy a few thousand gizmos and have a pretty significant
impact. I'm not at all sure that would be the easier task ….
Bob
On Sep 5, 2013, at 4:18 PM, Magnus Danielson mag...@rubidium.dyndns.org wrote:
On 09/05/2013 01:08 PM, Bob Camp wrote:
Hi
Ok, I'll also mention
Guys-
Please forgive me for the BW..
My day-job mgmt. has also asked me today if I knew of any US regional GPS
issues, as we too have had several reports of
our customers systems going into Rb hold-over on or about the 4th of Sept.
Only fact I can find is that SVN 4 was noted as
an issue
Can anyone estimate how many GPS jammers there are in the New England
area? There just might be thousands. I don't know.
I think the reason most people are not effected is that most GPS user
are mobile and if they are near a jammer it is only for a few minutes
On Thu, Sep 5, 2013 at 4:59 PM,
Hello All,
Not to go off on a tangent here but are there 'time nuts' distributed
around the globe in such a way as we'd know about an outage?
One good hiccup by the Sun and it could cause an outage - correct? (
http://www.spaceweather.com)
It wasn't so long ago we were told the Iridium
John-
I agree. We all should/would have seen
even a minor outage. That's what makes the event from early this week a rather
odd event.
I have personally observed GPS jamming events from truck drivers trying to
prevent being tracked. But those events are very localized it seems and are
well
Hi
My guess is that if GPS was down over the northeastern part of the US for most
of a day, you would not have to check with TimeNuts. It would be on the evening
news. Since your typical mobile GPS needs more sats than a timing receiver,
they should drop out first. When the entire car / truck
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