Re: [time-nuts] Z3815A front panel status indicator

On 2/26/2016 12:58 PM, Dickson Fu wrote: Hi all, A bit frustrated with my newly bought Z3815A. After power up, the "Block" indicator stays lit and no other LED turns on except Power indicator. It appears that GPS has never discipling. I cannot find any user manual for Z3815A and other hp

Re: [time-nuts] GPS Outage

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 >

Re: [time-nuts] GPS Outage

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).

Re: [time-nuts] Looking for OCXO

jdo...@gmail.com said: > I'm going to be taking some oscilloscopes to a hamfest this summer, and I > am going to have a truck full of stuff anyway, and would like to avoid > hauling my signal generator to provide a demonstration of the scopes. Does > anybody have a 50MHZ+ OCXO or other

Re: [time-nuts] Looking for OCXO

Reed Dickinson sells a small oscilloscope calibrator that is well suited for checking 'scope operation "in the field", at hamfests or when stumbles across a seemingly nice 'scope in the local electronics store. It is a very nice, compact instrument. See

Re: [time-nuts] GPS Outage

"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 fine after this 2 hours."

Re: [time-nuts] PRS10 C900 replacement

Hi All, I used the TAP225K035SRW, from Mouser, and have the PRS10 running again. In the process of pulling it apart I managed to break one of the glass thermistors (Mouser replacement from US Sensor, part number 104JG1F). Doh. Whether it was the lamp temperature change (thermistor) or

Re: [time-nuts] GPS Outage

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

Re: [time-nuts] GPS Outage

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

Re: [time-nuts] GPS Outage..

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

Re: [time-nuts] GPS Outage..

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

Re: [time-nuts] GPS Outage..

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.

Re: [time-nuts] GPS Outage..

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? > > > -- >

Re: [time-nuts] MV89A / MTI-260 / HP10811 carrier board

Gerhard Hoffmann wrote: > I have never used PICs and given their life cycle it's a bad time to jump on > the train. > Not now when I'm just converting everything to ARM. Hi Gerhard, The 12F-series that I use for the PIC dividers is very solid. These are sold by the billions. Not sure what

Re: [time-nuts] GPS Outage

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

Re: [time-nuts] GPS Outage..

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

Re: [time-nuts] GPS Outage..

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,

[time-nuts] GPS Outage..

>kb8tq at n1k.org said: Pretty much all of our surplus gizmos are cell tower surplus (like 99.99%). True - I believe all the Trimble Thunderbolts came from Andrew/Grayson/Geometrix WLS2A-24-G or similar Wireless Location Sensors. I know I removed over 200 T-bolts from these units personally.

Re: [time-nuts] GPS Outage..

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,

Re: [time-nuts] GPS Outage

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

Re: [time-nuts] GPS Outage

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

Re: [time-nuts] PRS10 C900 replacement

Hi Some form of base cooling is needed on all of these surplus telecom Rb’s to keep them from an early death. A great big heatsink could do it. A small quiet fan and a small heatsink will do it. A somewhat larger fan and no heatsink will also do the job. Any fan mount should consider the

Re: [time-nuts] Looking for OCXO

Hi If you put a filter on the output of the DIP (or other pkg) XO, you can demo a sine wave into a scope as well as a square wave. You will likely need a generator to power the scopes if it is outdoors so consider that as well. Not all generators supply nice clean power …. Bob > On Feb 26,

[time-nuts] Z3815A front panel status indicator

Hi all, A bit frustrated with my newly bought Z3815A. After power up, the "Block" indicator stays lit and no other LED turns on except Power indicator. It appears that GPS has never discipling. I cannot find any user manual for Z3815A and other hp smartclock does not have the same front panel

Re: [time-nuts] GPS Outage

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

Re: [time-nuts] MV89A / MTI-260 / HP10811 carrier board

Dear Gerhard, I think you missed my point by reacting to the technology choice rather than the function I was proposing. BTW, I write VHDL, assembler and C code as my daytime work, dealing with timing. Cheers, Magnus On 02/26/2016 02:30 AM, Gerhard Hoffmann wrote: Am 25.02.2016 um 22:23

[time-nuts] GPS Outage..

Maybe I'm misreading what you're saying, but no matter the cause, it points out what can and does happen when you put all the mission critical eggs in one basket. That we don't have as reliable as possible a backup system, or why we destroyed the one we had, is mind boggling. This is a