[time-nuts] Ublox F9P multi-band GPS receiver

2019-01-25 Thread Mark Sims
All the Ublox timing receivers output carrier phase and pseudorange data, so I suspect the F9T will also. Heather can directly write a RINEX file that can be submitted to CSRS-PPP for a precise (say 100 mm) position using L1 only data. For L1/L2 data you have more online processing options

Re: [time-nuts] Frequency standard

2019-01-25 Thread paul swed
Bob The gpsdos will be far superior to the method you are currently using. I will guess 100-1000 times better and higher. I took a quick look at EBAY boy there are lot of them these days. We all have our favorites. Trimbles, HPs... But what would help is understanding your need. What do you want

Re: [time-nuts] Ublox F9P multi-band GPS receiver

2019-01-25 Thread MLewis
On 25/01/2019 7:56 PM, Bob kb8tq wrote: ... Doing a buy on the F9T might be easier if the part actually existed ….. Right now it is still in the vaporware phase. Bob So if there's someone they'd listen to, it's not too late to see if there's features from the various time-nuts F9P posts that

[time-nuts] TICC question

2019-01-25 Thread Mark Sims
Heather can run on Windows, macOS, Linux (including the RasPi) and FreeBSD. Check the first post of this thread. There is a link to the X11 version source code (also download the attached heather.txt file that contains the documentation). That .zip file also has a pre-compiled binary for

Re: [time-nuts] Prescalers ?

2019-01-25 Thread Mark Spencer
Thanks All. I got lots of useful on and off list responses. Much appreciated. Mark Spencer m...@alignedsolutions.com 604 762 4099 ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to

Re: [time-nuts] TICC question

2019-01-25 Thread jimlux
On 1/25/19 3:28 PM, Mark Sims wrote: You can send it a '#' to get back to the config menu. Or use Lady Heather to control it and log data captures. The 'P' keyboard menu has most of the config commands. Heather (and the '#' command won't work with the original firmware release... you may

Re: [time-nuts] Help with Novatel OEM6 external oscillator

2019-01-25 Thread Magnus Danielson
Hi Skip, On 2019-01-21 22:51, Skip Withrow wrote: Hello Time-Nuts, Hopefully, this doesn't get too long. What I desire to do is hook up an external oscillator to a Novatel OEM6 series dual-band GPS receiver. Sounds easy. But, Novatel has four fixed (TCXO, OCXO, rubidium, cesium) plus a USER

Re: [time-nuts] Good clean-up oscillators

2019-01-25 Thread Magnus Danielson
Hi Bernd, Thanks for the pointer, it may become handy. Just out of curiosity, what kind of phase noise would it typically have and what PLL bandwidth? I see (and already kind of knew) that you have some good oscillators, when it comes to phase-noise, but not too much is disclosed about the

Re: [time-nuts] Ublox F9P multi-band GPS receiver

2019-01-25 Thread Gregory Maxwell
On Fri, Jan 25, 2019 at 11:00 PM Dustin Marquess wrote: > Agreed. I'm sure the only difference between the two (if there really > is any) is all in the firmware. They seem to disable a lot of the > nicer timing features in their non-timing modules. Things like > UBX-CFG-TMODE2 to survey-in and

[time-nuts] TICC question

2019-01-25 Thread Mark Sims
You can send it a '#' to get back to the config menu. Or use Lady Heather to control it and log data captures. The 'P' keyboard menu has most of the config commands. Heather (and the '#' command won't work with the original firmware release... you may need to upgrade the firmware. Are you

Re: [time-nuts] Good clean-up oscillators

2019-01-25 Thread Magnus Danielson
Hi Bernd, Thanks for the pointer, it may become handy. Just out of curiosity, what kind of phase noise would it typically have and what PLL bandwidth? I see (and already kind of knew) that you have some good oscillators, when it comes to phase-noise, but not too much is disclosed about the

Re: [time-nuts] Good clean-up oscillators

2019-01-25 Thread Mark Goldberg
On Fri, Jan 25, 2019 at 3:05 PM Bernd Neubig wrote: > Hi all, > > Sorry the URL given below was broken into two lines. In its total it must > read > > https://www.axtal.com/English/Products/OscillatorModules/PhaseLockedOscillat > orModules/ >

Re: [time-nuts] Ublox F9P multi-band GPS receiver

2019-01-25 Thread Dustin Marquess
Agreed. I'm sure the only difference between the two (if there really is any) is all in the firmware. They seem to disable a lot of the nicer timing features in their non-timing modules. Things like UBX-CFG-TMODE2 to survey-in and enable 1SV timing mode is a big one. -Dustin On Fri, Jan 25,

[time-nuts] TICC question

2019-01-25 Thread jimlux
I've got my TICC here 10MHz from a 3325 internal reference ChA driven from a 1 Hz sine wave from the 3325 In time stamp (T) mode I get this: 3.856748610623 chA 4.856490834562 chA 5.856228782747 chA 6.856429385854 chA 7.856145770694 chA 8.855822275902 chA 9.856745141437 chA 10.856484310506 chA

Re: [time-nuts] Good clean-up oscillators

2019-01-25 Thread Bernd Neubig
Hi all, Sorry the URL given below was broken into two lines. In its total it must read https://www.axtal.com/English/Products/OscillatorModules/PhaseLockedOscillat orModules/ To download the data sheet directly, use this link: https://www.axtal.com/cms/docs/doc87559.pdf Have fun Bernd

Re: [time-nuts] Ublox F9P multi-band GPS receiver

2019-01-25 Thread David J Taylor via time-nuts
This looks ideal to me: https://www.u-blox.com/sites/default/files/RCB-F9T_ProductSummary_%28UBX-18069985%29.pdf -Dustin == A candidate for a group buy? David -- SatSignal Software - Quality software for you Web: http://www.satsignal.eu Email:

Re: [time-nuts] Ublox F9P multi-band GPS receiver

2019-01-25 Thread Chris Burford
Another aspect of this is what do you consider "good enough"? I've used my Neo-M8T-0 receiver for a positional fix down to about 4cm with the use of a CORS facility at 5.6km distance. The F9x series would probably narrow this range considerably, but again, what is good enough? It will be

Re: [time-nuts] Ublox F9P multi-band GPS receiver

2019-01-25 Thread Bob kb8tq
Hi In every other generation of uBlox parts, the “high end” modules (in this case the P and the T) pretty much did the same thing with only minor differences. You do need precise position to get precise time. You also need precise time to get precise position. That’s just the way GPS works and

Re: [time-nuts] Ublox F9P multi-band GPS receiver

2019-01-25 Thread Juerg Koegel
*Von: *Dustin Marquess *Gesendet: *Donnerstag, 24. Januar 2019 09:07 *An: *Discussion of precise time and frequency measurement *Betreff: *[Spam] Re: [time-nuts] Ublox F9P multi-band GPS receiver This looks ideal to me:

Re: [time-nuts] Ublox F9P multi-band GPS receiver

2019-01-25 Thread Mike Cook
So the ultimate question is: Do you need a F9P in order to find the precise position of your F9T Antenna so that you can set up the F9T or is the F9T’s survey mode as accurate ( I doubt it as the doc gives position accuracy 2m ). Come to think of it, do you need three positioning receivers to

Re: [time-nuts] HP History with Dymec: "Becoming Hewlett Packard. Why Strategic Leadership Matters"

2019-01-25 Thread Andy
OK, now I'm sure the Dymec I mentioned earlier was not the same one as HP's Dymec. The Dymec I knew apparently got its name by condensing Dynamic Measurements Corp. to Dymec Inc. Also the one I knew was much more recent than HP's Dymec, which had been folded back into HP well before. Andy

Re: [time-nuts] Good clean-up oscillators

2019-01-25 Thread Bernd Neubig
>> At least one version is available from Mouser for $85. >> >> And I'm sure if I wanted to order one with something slightly >> different, Vectron would do it.> > >From my previous experience (asking for a custom frequency TCXO) Vectron's business model does not include low volume or one offs.