t;
>>
>>
>>
>> On 3/18/2019 1:00 PM, time-nuts-requ...@lists.febo.com wrote:
>> > Message: 2
>> > Date: Mon, 18 Mar 2019 12:26:55 -0400
>> > From: Bob kb8tq
>> > To: Discussion of precise time and frequency measurem
good enough to compare them to...)
>
> Thanks!
> Dan
>
>
>
>
> On 3/18/2019 1:00 PM, time-nuts-requ...@lists.febo.com wrote:
> > Message: 2
> > Date: Mon, 18 Mar 2019 12:26:55 -0400
> > From: Bob kb8tq
> > To: Discussion of precise time and frequency measure
Lady Heather can output RINEX (v2.xx and 3.xx files) for most receivers that
output pseudorange and/or carrier phase data. I have tested it with the Ublox
4T, 5T, 6T, 8T, F9P, and F9T receivers. Also the Venus RTK receivers, Trimble
NetRS, Ashtech Z12,, NVS08, Trimble timing receivers, and
be
> interesting to compare a 6T or M8 part to the F9P. (I lack a standard good
> enough to compare them to...)
> >
> > Thanks!
> > Dan
> >
> >
> >
> >
> > On 3/18/2019 1:00 PM, time-nuts-requ...@lists.febo.com wrote:
> >> Message
Hi
You can access an “NTRIP stream” from various free sites. There is some
mumbo jumbo on some of them to get an account. There are streams dedicated
to “clock and orbit correction”. CLK11 and CLK93 are two fairly common ones.
Since NTRIP is a real time product (as in < 30 seconds delay) it can
r 2019 12:26:55 -0400
>> From: Bob kb8tq
>> To: Discussion of precise time and frequency measurement
>>
>> Subject: Re: [time-nuts] Frequency Ensemble
>> Message-ID:<88460ea2-6034-48d1-a77a-fed1f824d...@n1k.org>
>> Content-Type: text/plain;charset=ut
to the F9P. (I lack a standard
good enough to compare them to...)
Thanks!
Dan
On 3/18/2019 1:00 PM, time-nuts-requ...@lists.febo.com wrote:
Message: 2
Date: Mon, 18 Mar 2019 12:26:55 -0400
From: Bob kb8tq
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts
On Mon, Mar 18, 2019 at 8:03 AM Rodger via time-nuts
wrote:
>
> Tom,
>
> Thanks for the explanation of clock ensembles. That answered a few
> questions I've had for a while.
> Regarding your comments on collecting raw time data from GPS and post
> processing it. Can you provide any reference
This project www.openttp.org provides software for post-processing of raw
data for time-transfer from some currently available single frequency
receivers. It provides CGGTTS and RINEX, the latter for use with the
various PPP services. There are some tools in there too for doing eg common
view and
If you search for "GNSS time transfer" you will find a lot of papers etc.
For example these might get you started:
https://www.bipm.org/ws/CCTF/TAI_TRAINING/Allowed/Fundamentals/Training-2012-GNSS-Defraigne.pdf
https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7909843
I tried to collect some
techniques
> involved to improve GPS position data, but hadn't thought about it as much
> for timing.
>
> Thanks,
>
> Rodger
>
> -Original Message-
> From: time-nuts On Behalf Of Tom Van Baak
> Sent: Sunday, March 17, 2019 3:00 PM
> To: Discussion of precise t
: Sunday, March 17, 2019 3:00 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Frequency Ensemble
> Hi Everyone,I like to know if it possible to run let say 10 GPSDO, 16
> Rb clock together and take the average to control 1 "master clock" and
have
On Sun, 17 Mar 2019 10:58:49 -0400
Bob kb8tq wrote:
> The first thing you need (after all the standards) is a way to do precision
> comparisons of all your devices. There are an infinite number of ways to do
> this. Let’s say you buy 26 TICC’s to do the job ( TAPPR needs 25 ordered to
> get the
> Hi Everyone,I like to know if it possible to run let say 10 GPSDO, 16 Rb clock
> together and take the average to control 1 "master clock" and have better
> stability ?
> like what BIPM or NIST doing.
> I have search about ensemble system but I have no idea how much advantage
> I get from some
Just a couple of other measurement options on top of Bob's excellent
description.
You could half the number of TICCs by using them in timestamp mode with
a common 10 MHz clock serving as the reference -- in that mode you can
do two simultaneous measurements with each TICC. There are some
Anton
Others will reply but my sense is that there is little advantage in doing
that.
Assuming everything is the same in all 10 systems then you would be
measuring the receiver behaviors at a given moment. I simply am unclear
that there is an advantage.
Regards
Paul.
On Sat, Mar 16, 2019 at 11:00
Hi
The answer is (of course) yes. The somewhat more detailed answer is that it
actually is a practical basement sort of thing *if*
you have the space. I was headed off to do this and changed course. That’s just
my lack of focus rather than it being an
un-doable sort of thing. What’s below is
> Le 17 mars 2019 à 02:16, Anton Moehammad via time-nuts
> a écrit :
>
> Hi Everyone,I like to know if it possible to run let say 10 GPSDO, 16 Rb
> clock together and take the average to control 1 "master clock" and have
> better stability ?like what BIPM or NIST doing.
I think the answer
Hi Everyone,I like to know if it possible to run let say 10 GPSDO, 16 Rb clock
together and take the average to control 1 "master clock" and have better
stability ?like what BIPM or NIST doing.
I have search about ensemble system but I have no idea how much advantage I get
from some clock that
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