Hi Tom,
On 10/31/18 10:45 PM, Tom Van Baak wrote:
>> I have in mind a project which consists in synchronizing two or more stable
>> clocks (OCXO) disciplined by GPS.
>>
>> However, would be great to have the option to disable the GPS on both sides
>> at a given time and to synchronize them in a
Hi Ferran,
Here's another idea for your multi-OCXO synchronization project.
Normally when we think about synchronized oscillators we imagine two of them in
side-by-side or perhaps separated by a few meters of cable. Through some PLL
magic they remain in perfect phase (and frequency), either
> I have in mind a project which consists in synchronizing two or more stable
> clocks (OCXO) disciplined by GPS.
>
> However, would be great to have the option to disable the GPS on both sides
> at a given time and to synchronize them in a Master-Slave or directly by means
> of a protocol they
> http://lists.febo.com/pipermail/time-nuts_lists.febo.com/2018-October/094520.html
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-05:00) To: Discussion of precise time and frequency
measurement Subject: Re: [time-nuts] Question about
the PLL of Trimble Thunderbold HiThe Trimble Thunderbolt does not have a 1 pps
between the GPS chips and the OCXO. It makes the link between the two portions
of the system in a different way
Hi
The Trimble Thunderbolt does not have a 1 pps between the GPS chips and the
OCXO. It makes the
link between the two portions of the system in a different way than the typical
GPSDO. It uses the
OCXO as the clock reference for the GPS chip set. It then uses phase data on
the received
Hi
Ok, let’s take a look at this is a bit more detail. Let’s say you have a
reference oscillator ( = the source
of sync) and a locked oscillator ( = the target of the sync).
Both devices have jitter. Unfortunately this an ill defined term and we can go
on almost forever about what
is or
Hi
Unfortunately there are no “stock” boards to do this sort of thing. If this is
a commercial
requirement, there are companies who do this kind of thing on a custom basis.
Figure on
a few thousand dollars NRE and a minimum order of a few hundred to get somebody
interested. At the “couple ps”
> I have in mind a project which consists in synchronizing two
> or more stable clocks (OCXO) disciplined by GPS.
If the OCXO are disciplined by GPS then you have a GPSDO. There is no need,
then, to synchronize the OCXO directly; they are all synchronized indirectly
through GPS. Or perhaps I
Hi
The Thunderbolt actually is not a real good solution if you want to synchronize
to something other than GPS. It
depends on direct phase data from its internal GPS chip set to do the GPSDO
magic. A board that has a PPS
signal between the GPS and “PLL” probably is a better way to go.
Even
Hello everyone ! I am new in here. I got referred to time-nuts by a colleague,
and after reading a bit, I think that is the right place for this kind of
questions :)
I have in mind a project which consists in synchronizing two or more stable
clocks (OCXO) disciplined by GPS.
However, would
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