Hello John,
Did you happen to do any phase noise measurements?
Thanks,
John W.
On Wed, Feb 5, 2014 at 10:07 PM, John Pease wrote:
>
>
> > I was wondering how many of you have experience with this
> > ECL part from On
> > Semi:
> >MC100LVEL34 ?
>
> John,
>
> I use this part quite a bit. Gre
> I was wondering how many of you have experience with this
> ECL part from On
> Semi:
>MC100LVEL34 ?
John,
I use this part quite a bit. Great for 100 MHz distribution in out cold atom
systems. Also used it with good luck in dividing the output of a 320 MHz VCSO
in a cavity lock servo.
Y
Hal is graphing seconds of offset and seeing 5 seconds worth of shift in
one day. Worrying about phase shift across the transformer changing with
temperature, is like rearranging deck chairs on the titanic :-)
Tim N3QE
On Wed, Feb 5, 2014 at 5:40 PM, Tom Harris wrote:
> For your setup measurin
Tom,
You sound like a guy who just might have experimented with different core
materials for your transformer? Any suggestions for rolling your own?
I'd love to hear more about your pulse monitoring/measuring setup if it's
something you can share.
Thanks,
Jimmy...
N5SPE
> On Feb 5, 2014, at
Whoa! That's hilarious... and sort of scary all at the same time :)
Thanks for the story, Rick.
Jimmy...
N5SPE
> On Feb 5, 2014, at 12:06 PM, "Richard (Rick) Karlquist"
> wrote:
>
>
>
>> On 2/5/2014 9:37 AM, Bill Hawkins wrote:
>>
>> Then there is the load side, with who knows what equipm
Hal,
Thanks for the info. I think I'm going to give it a go. At any rate it's a good
excuse to buy another Raspberry pi :)
Thanks for the python source too. Looks useful.
Jimmy...
N5SPE
> On Feb 5, 2014, at 11:39 AM, Hal Murray wrote:
>
>
> jimmydb...@gmail.com said:
>> Interesting.. I'm as
For your setup measuring mains there will be a large phase difference
across the transformer. This is due to very many physical properties of the
materials, the largest being the magnetic succeptability of the core. Now,
this does show a slight temperature dependance. So how do you know that you
ar
Guys,
on this subject, we put together and qualified a convenient and complete
(fairly) low-cost timing-compatible GPS antenna kit that includes all the
mounting materials, 150 feet of cable, all the connectors, and down to the
last screw, nut, and bolt everything one would need to mount t
On 04/02/14 11:10, Azelio Boriani wrote:
In the second sentence, I make the point that when you take two sample values,
at various taus, you really do not
average them but rather make their time stability contribution (trigger jitter
and resolution) less important relative to
the tau between th
jimmydb...@gmail.com said:
> Interesting.. I'm assuming the green graph is actual voltage and the red
> graph is..?
The green is the frequency as measured over the last 10 seconds.
The red is the long term clock offset in cycles relative to what it would be
if the frequency was exactly 60 Hz.
On 2/5/2014 9:37 AM, Bill Hawkins wrote:
Then there is the load side, with who knows what equipment making large
swings.
This reminds me of the time I visited the John Deere
foundry in Waterloo, IA. They had an arc furnace with
graphite rods the size of small utility poles. I
remember the
Looking at PG&E's sources of energy, 60% comes from easily controllable
sources like gas, nuclear, and hydro.
40% comes from wind, solar, and other that are not so easily regulated.
Steam generators can't me moved thermally as fast as winds drop or
clouds develop.
Then there is the load side, wi
As has been discussed before, a splitter intended for home satellite
systems is a cheap solution as they have the bandwidth and the DC pass
required. I have one between a couple of Thunderbolts. It powers the
antenna and shows antenna OK on both. Using a splitter is better than
just a T as i
Le 5 févr. 2014 à 01:52, saidj...@aol.com a écrit :
> Michael,
>
> use a simple BNC T-splitter. Works perfectly for me as long as both GPS
> carry the same antenna voltage. No loss in signal quality evident from the
> C/No readings, and dirt-cheap. No need to over-complicate this.
>
> bye,
Hello Mr. Westmoreland
Yes we know that part and used in the past in many application in the
previous incarnation from Motorola. Interestingly the older 5V parts
were faster see the old Motorola datasheet, also for some reason the AZM
parts were also faster,
any goo explanation for that?
R
Hal,
Interesting.. I'm assuming the green graph is actual voltage and the red graph
is..?
I've never done any mains monitoring/measuring and was wondering, what's your
equipment setup?
Thanks,
Jimmy...
N5SPE
> On Feb 4, 2014, at 8:43 PM, Hal Murray wrote:
>
>
> This one caught my eye.
>
Maybe he became hard of hearing and started observing the muzzle flash?
--
Joe Leikhim
Leikhim and Associates
Communications Consultants
Oviedo, Florida
jleik...@leikhim.com
407-982-0446
WWW.LEIKHIM.COM
___
time-nuts mailing list -- time-nuts@fe
In a somewhat contorted way, isn't this the same basic method that the
national standards institutes use to keep their time ( and other standards)
coordinated?
No flames, please, I'm just kidding.
Tom Holmes, N8ZM
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-bou
Hi Charles,
I've had a night to digest what I'm seeing, and this is what I've come up with:
There were only 2 updates to the DAC during the 24 hours tested. So, long term
doesn't system drift dominate? That would include thermal drift and the
stability of the OCXO. Also, there was a phase cr
Bob wrote:
here's the result for 1PPS vs 10MHz for my GPSDO, as measured by a
5334B clocked by the same 10MHz.I don't know how to read these,
but 6,3,1,6,3,1 etc. doesn't look normal.
The adev results you obtained look very much like the "adev" results
reported by Lady Heather, very like
On Tue, Feb 4, 2014 at 6:22 PM, Michael Blazer wrote:
> Wouldn't the watchmaker notice that his clock is always a few seconds
> fast? If the cannon is a mile away, the watchmaker would be adjusting the
> clock so that 'noon' would sound around tea time after about 10 years.
>
Now THAT is serious
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