h on "over-determined clock solution" did not turn up any
substantive hits.
What does "over-determined clock solution" mean?
Thanks.
Steve, K8JQ
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Thanks all for the info about the GPS over-determined clock solution,
helps me much. Bill's suggestion to internet search the term absent the
hyphen turns up numerous hits as well.
Steve, K8JQ
On 6/25/2016 2:10 PM, Bill Hawkins wrote:
Try overdetermined as one word. Also include GPS
to contend with.
Steve, K8JQ
On 8/11/2016 4:06 PM, Chuck Harris wrote:
Lots of good suggestions have already been made, but for
me, a boom style stereo microscope, with a distance between
the objective, and the focal point of at least 3 inches works
fairly well...
One other thing that may
ater today.
The units have Maldon, Essex on the serial number plates.
I guess somebody in the timing community must have worked there.
Regards
Steve
Original Message
Subject: Re: [time-nuts] European Electronics Systems Radio Clock Model
100
From: gandal...@aol.com
Date: Fri, December 1
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information would be gratefully received for the Radio Communication
Museum of Great Britain.
(thanks to Robert with the hint about plain text !!)
Steve Haseldine G8EBM
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units and was just about to put one in a timing
rack at the museum.
Regards
Steve G8EBM
Original Message
Subject: [time-nuts] European Electronics Systems Radio Clock Model 100
From: GandalfG8--- via time-nuts <time-nuts@febo.com>
Date: Thu, December 14, 2017 1:59 am
To
think I'd pay
more money for a better clock to get away from the vagaries of LaCrosse.
Thanks.
Steve, K8JQ
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I'm interested in two...
Thanks,
Steve
On Nov 19, 2012, at 8:04 PM, cdel...@juno.com wrote:
MINI-TIC for DMTD work
Hi Everyone!
I've been testing a Miniature 2 channel TIC that Bert Kehren and Juerg
Koegel
and Richard Mc Corkle have designed.
It has 9 digits/Sec
Or join and post to the EIP_Microwave Yahoo group - lots of good info showing
up there!
Steve
WB0DBS
On Dec 10, 2012, at 8:00 AM, J. L. Trantham jlt...@att.net wrote:
Me too.
I have two 545A's, one of which works and the other of which has issues with
Band 3, failing to read in a very
I have a TrueTime XL-DC that has an IRIG B plug-in that uses that same
Tri-Lobe BNC connector. I'm planing on changing these out to normal
BNC connectors due to the rarity and expense of trying to use them
as-is!
Steve
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Steve,
Several of them smashed flat, stacked up, and jammed under a door make a
low-quality door stop...
Steve
WB0DBS
On Apr 11, 2013, at 11:10 AM, steve gunsel st...@sgteq.com wrote:
Hi,
Not too long ago there was an interesting discussion here about RF
connectors. I have always
wrong with it?
Steve
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section seems
probable.
Thanks for the thoughts and ideas, anything else to consider?
Steve
On 6/10/2010 8:22 PM, Didier Juges wrote:
The TB has an error flag if there is no antenna connected (open) or if it is
shorted. The tboltmon PC software reports these flags, and so does my GPSMon
. So the OCXO would appear to be functional. Thanks for the suggestion.
Anyone know of a source for board layout/schematics/parts list? Might be
interesting to look at, although it is likely beyond my skill set to
effect a repair :-\
Steve
On 6/10/2010 9:59 PM, Bob Camp wrote:
Hi
I suspect
Does the Thunderbolt have to be connected to a real serial port to
operate properly with tboltmon.exe and Lady Heather? Or will it run
through a USB to serial adapter such as those manufactured by Belkin and
Byterunner?
Thanks.
Steve K8JQ
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Did anyone else notice Google's salute to Mr. Hertz today?
Steve
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highly recommend that everyone own, use, and contribute to
both large and small devices alike.
Steve
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://wulffmorgenthaler.com/2012/02/18/
Attila Kinali
I realize someone already mention Idiocracy..
[bump]Yes it does matter[bump]
Steve
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and grab a PNP, but that's beyond the context ;)
Steve
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and grab a PNP, but that's beyond the context ;)
No matter how many times i read something, I miss a major typo and
don't see it until right after I hit send!
Should read:
(I've been using NPN for nearly everything for about 20 years)
Steve
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Graham,
If the preamp was powered from aircraft power rather than from the receiver
coax it may be 24v.
Steve
WB0DBS
On Mar 2, 2012, at 9:05 AM, Collins, Graham coll...@navcanada.ca wrote:
Paul,
That would be my guess too but these preamps are ex aircraft installations
I think 5v is most common now days, too. The old Odetics GPStat (even older
than the GPStar!) provided regulated 8 or 9 volts, I forget which. I had to add
a 5v regulator to allow use of a newer antenna.
Good luck with the testing, Graham!
Steve
On Mar 2, 2012, at 10:51 AM, Greg Broburg
changes you make to increase
precision are not likely to apply to any one else.
Those who do not see a problem are simply not objective in regards to the
scientific method. Just cargo cult science.
Steve
On Wed, Apr 4, 2012 at 11:42 PM, Mike S mi...@flatsurface.com wrote:
On 4/4/2012 10:41 PM
multiple channels, show me an architecture with cache or waits states and
i'll show you a problem ( in regards to real time, that is)
I stand firm that the only proper way to do this is with a 100%
deterministic architecture.
Steve
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have any thoughts as to how stable an approach like
this would be?
Steve
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Supposedly in stock:
http://www.futurlec.com/ICLinearOpAmps1.shtml
I've dealt with this company several times in the past, no problems other
than very slow shipment to the usa.(Some cases 2-3 months)
Steve
On Fri, Apr 13, 2012 at 12:46 AM, Burt I. Weiner b...@att.net wrote:
Hopefully someone
On Fri, 13 Apr 2012 15:45:22 -0400
Ben Gamari bgam...@physics.umass.edu wrote:
I thought this[1] might be of interest to time nuts. It seems that
some folks have been working on one obvious application to the new
tool presented to us by the rts-sdr project: GPS reception. In
addition to some
hasn't been a major obstacle and the GPS antennas are
above the HVAC ductwork. I'll see if there's any difference between this
antenna and the HP that's on the Z3816 now.
73,
Steve
WB0DBS
On Apr 13, 2012, at 1:52 PM, paul swed paulsw...@gmail.com wrote:
Steve will be interesting to hear how
.
This was far from scientific but it gives me enough confidence that at next
opportunity I can take it up into the attic for further testing.
Steve
On Apr 13, 2012, at 8:57 PM, Pete Lancashire p...@petelancashire.com wrote:
Here is what looks like from the inside
https://plus.google.com/u/0/photos
Did the seller double the shipping cost today? I could have sworn it was $30
the
last time I looked at the listing.
Steve
On May 3, 2012, at 2:42 PM, John Miles jmi...@pop.net wrote:
While I've not tried the recently suggested method for making it talk to
LH,
I did find another crude
Guess I waited too long to order. $60 for shipping - I'll pass.
Steve
On May 3, 2012, at 3:16 PM, Dan Rae dan...@verizon.net wrote:
On 5/3/2012 1:08 PM, Steve wrote:
Did the seller double the shipping cost today? I could have sworn it was $30
the
last time I looked at the listing
Didier,
What is the model number of the Symmetricom antenna? Do you happen to
know the difference in gain between it and the Trimble Bullet antenna?
Steve K8JQ
On 7/30/2012 2:46 PM, Didier Juges wrote:
Chuck,
I have one of the original red box TB. It came with the Trimble Bullet antenna
the
posting/reference is?
Thanks.
Steve K8JQ
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Thanks Scott and others.
Turns out that /FASTDETECT was already in my boot.ini but I had the
problem anyway.
Robert's suggestion to use Device Manager to disable the serial mouse
worked and I'm in business.
Appreciate the help from everyone.
Steve K8JQ
Scott Newell wrote:
At 03:09 PM 10
Two other what? Thunderbolts? I'm new at this . . . would you be so
kind as to elaborate?
Thanks.
Steve K8JQ
Didier Juges wrote:
Connie Marshall wrote:
Is a GPS antenna and a Power Supply the only extras needed to have a fully
functional unit.
Connie
K5CM
That would
if the replacement board has corrected that
problem?
Is it as simple as removing the older, existing board and soldering the
replacement unit in its place? Any tips as to how to most easily remove
the existing board?
Thanks.
Steve
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The replacement board looks like the one pictured on Brooke's web site.
Same processor as the older board. Hope to get it installed this evening
or tomorrow, I'll post the results.
Thanks all for the help.
Steve
On 7/6/2011 5:11 PM, Brooke Clarke wrote:
Hi Steve:
The last couple of board
at 5VDC for almost a year?
Thanks all for the insightful advice.
Steve
Original Message
Subject: Re: [time-nuts] fluke.l monitor for Thunderbolt . . . the saga
continues
Date: Wed, 06 Jul 2011 18:56:45 -0400
From: Steve [1]stev
I'm curious as to what folks are doing with PC's that require micro second
accuracy for days or weeks or what have you.
Any examples?
Curious,
Steve
On Sat, Nov 26, 2011 at 12:50 AM, Chris Albertson albertson.ch...@gmail.com
wrote:
On Fri, Nov 25, 2011 at 9:24 PM, David J Taylor
david-tay
fets would work just as well. This way you don't need to be concerned about
back feeding power from IO or in this case the clock/oscillator input.
Steve
On Fri, Nov 25, 2011 at 4:21 PM, Robert Atkinson robert8...@yahoo.co.ukwrote:
Hi,
Microchip cerainly condone using input protection diodes
say under rated i mean
take the peak figure and multiple it by two, that's the real part value.
My opinion, bad designs.
Steve
On Sat, Nov 26, 2011 at 1:25 AM, Chris Albertson
albertson.ch...@gmail.comwrote:
Many of us have seen electronic equipment last longer then one year.
Some of use even
Hal,
Those sure look like GNU plot graphs :)
Sorry, i didn't mean to change subjects but i do like gnu plot.
Steve
On Sat, Nov 26, 2011 at 4:20 AM, Hal Murray hmur...@megapathdsl.net wrote:
If you do a test, let us know your findings.
I think the answer will depend upon how good
to the live ground problem. Any ideas?
Steve
On Sat, Nov 26, 2011 at 4:50 PM, Brooke Clarke bro...@pacific.net wrote:
Hi Don:
Not a good idea. There are a number of fault conditions that can cause
Neutral to be tens of volts above ground. Tom's circuit with a Meg in both
the Hot
Hal,
I don't know what I'd do if i had reliable power like that. Here at work
(the lab) It's normal to see outliers of anything between 58hz and upper
63. As I had commented before, this power distribution in this area is
terrible (South Western Pennsylvania)
Steve
On Wed, Nov 30, 2011 at 3:06
of the tube condition?
Lastly, is the Rb tube a quartz tube or is it a metal(silver
lined?)canister sealed with polymer tape?
Thanks,
Steve
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like this in the
instruments i maintain it's a tale-tale sign gas mitigation.
Steve
On Thu, Dec 1, 2011 at 12:16 AM, WB6BNQ wb6...@cox.net wrote:
HUH ?
What, exactly, do you mean by corroded Rb tube interfaces ?
bILLwb6bnq
Steve . wrote:
snip
Also It appears that quite a few
that hot that it had oxidized...
Comments on the crystal? Is the crystal heated or a LF acoustic resonator?
Steve
On Thu, Dec 1, 2011 at 3:25 AM, WB6BNQ wb6...@cox.net wrote:
Steve,
I viewed not just the picture you referenced but all of the pictures at
that site
and was unable to detect ANY
in
which alkalines have leaked.
It's good to know that these are not leaky. Had I known this a few weeks
ago I wold have picked a few up.
Thanks guys,
Steve
On Thu, Dec 1, 2011 at 4:42 AM, Peter Bell bell.pe...@gmail.com wrote:
Hi, Steve
Both the lamp and the absorption cell are made out
purity, traceable grade.
Steve
On Thu, Dec 1, 2011 at 5:36 AM, Attila Kinali att...@kinali.ch wrote:
On Thu, 1 Dec 2011 05:19:24 -0500
Steve . iteratio...@gmail.com wrote:
Looking at those pictures with a different mind set, I see now that the
washers are not corroded as I had suspected
why they need to run so hot
Steve
On Thu, Dec 1, 2011 at 6:04 AM, Steve . iteratio...@gmail.com wrote:
Attila,
Great pictures, by the way.
My experience with alkaline metal is limited to sodium, potassium and
lithium. Mostly sodium, which after a long process is precipitated from
sodium
.
Unfortunately I did not have the solder analyzed. I'm still curious as to
what had happened to the solder.
Steve
The cryst.l is heated to reduce the pull range of the VCXO. Since it's
locked to the Rb, improving it's temperature performance does not have a
significant impact on the unit's
out when I
start my experimenting.
Steve
On Thu, Dec 1, 2011 at 9:52 AM, Arthur Dent golgarfrinc...@yahoo.comwrote:
The referenced photos are poor quality and taken in tungsten lighting
so you really can't see much from them. Here is a photo I just took of
a somewhat similar 5650A that may
more.
Steve
On Wed, Dec 14, 2011 at 7:08 PM, Azelio Boriani azelio.bori...@screen.itwrote:
I have literally tons of (and they are free), I think the only problem is
to ship them from Italy. At work they are throwing away hundreds of them.
Actually I have here at home 15-20 pieces.
On Thu, Dec
Looks to me like 63.8976mhz (63,897,600hz) is divisible by two. Using a
counter to make a clock distribution system etc. With that in mind i could
use this in all sorts of projects.
Steve
On Wed, Dec 14, 2011 at 7:02 PM, Pete Lancashire p...@petelancashire.comwrote:
I use to have a reference
Yup. Nice binary number. jut like those old school crystals we like to see
(4.096, 8.192...etc) dare i mention 32.768 khz... ouch ;)
Steve
On Wed, Dec 14, 2011 at 10:03 PM, Rex r...@sonic.net wrote:
On 12/14/2011 5:20 PM, Steve . wrote:
Looks to me like 63.8976mhz (63,897,600hz
or software.
Steve
On Thu, Dec 15, 2011 at 2:37 AM, Javier Herrero jherr...@hvsistemas.eswrote:
A lot of them are derivatives of the 2.4576 UART baud rate gen:
9.8304 = 2.4576 * 4
14.7456 = 2.4576 * 6
19.6608 = 2.4576 * 8
22.1184 = 2.4576 * 9
24.567 = 2.4576 * 10
but i'm not certain.
Steve
On Thu, Dec 15, 2011 at 1:15 PM, Don Latham d...@montana.com wrote:
What I find interesting is that the first push for standardization, at
least for machine threads, came from the manufacture of arms, the
Springfield Armory, at the time of the Civil war. At that time
On Thu, Dec 15, 2011 at 2:43 PM, Steve . iteratio...@gmail.com wrote:
The laboratory where i work obviously reports results using the SI metric
system. There is one exception though, and that is the energy side,
specifically calorimetry. At first glance the calorimeters appear to
normal(SI
One of these days, when I run out of other things to play with, I want to
...
Well said Hal.
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On Thu, Dec 15, 2011 at 5:57 PM, Peter Gottlieb n...@verizon.net wrote:
Just watch how GPS stuff will get all restricted now.
I'm curious if the lightsquared folks will try to use this as leverage to
debunk the importance of GPS.
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, just as with the nylon standoffs)
Then i cut a piece of plexiglass to length and width then fasten above the
screw terminals.
I prefer this method over the snap on covers but if a strip already has the
cover I'm probably not going to run the extra mile and make my own.
Steve
On Wed, Dec 28
Jim,
I assume something like this:
http://www.allelectronics.com/make-a-store/item/TS-210/10-POSITION-DUAL-ROW-STRIP-20-AMP/1.html
These tend to be very common in heavier duty applications in the USA,
though DIN mount terminals are always very common in industrial
applications.
between 58 and 62 hertz. Which makes sense
because our older alarm clock needs to be corrected every month of so.
I've been meaning to start logging frequency-- not got around to it yet.
Steve
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settings). Yet another thing i want to log. So busy playing with
everything makes it hard to find time.
Steve
On Fri, Dec 30, 2011 at 8:07 PM, Hal Murray hmur...@megapathdsl.net wrote:
Well, I design systems that we send out all over the world. I have
various
spec numbers that indicate some
term phase events, where as you are
looking for long term. I find both equally interesting.
When i get some extra time and hardware, I'm going to end up performing
this very test.
Steve
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Ken,
The links are working fine for me on our home network and our firewall is set
to medium/high security mode. Are you having the same issues with any other
.gov links?
Steve
On Jan 31, 2012, at 5:09 PM, ken johnson bats...@gmail.com wrote:
Does anyone else have problems with links
, Here at work I have a galep-5 which
AFAIK can read both the mcu and cpld/fgpa/pga, whatever it is (provided
they are not locked, or the state machine encrypted)
Steve
On Mon, Feb 6, 2012 at 10:07 AM, Elio Corbolante elio...@gmail.com wrote:
Unfortunately my programmer is only able to erase
. Of if you're a quantum type of person,
it exists because you are there to observe it.
Steve
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Optimum noise immunity , Originally a Russian book but translated by
R.A. Silverman.
(somewhat dated, but very good coverage in
theory, heavy math,statistics and scientific method)
Due to the nature of the above book if you are not familiar with the
scientific of experimentation on a practicing
are forced
to find all the derivatives.
Steve
Or worse, they will start requiring their scrappers to use a drill
press or punch to render the physics package unusable. I've seen this
done locally by hard drive manufacturers- hundreds of pounds of
working HDs destroyed on purpose on a regular basis
Be cautious when straying off the tourist track over there. The Silk Market in
Beijing for example. Showing interest in knock-off Rolex's in one stall got us
an invite to see night vision goggles in another, and the watchers are
everywhere.
Steve
On Feb 21, 2012, at 1:44 PM, Chris Albertson
, and get over the mandatory PE at 10AM and
2PM for the same reason...
Steve
On Feb 21, 2012, at 3:39 PM, Chris Albertson albertson.ch...@gmail.com wrote:
On Tue, Feb 21, 2012 at 1:03 PM, Steve steve-kr...@cox.net wrote:
Be cautious when straying off the tourist track over there. The Silk Market
the standard will loose
lock without the additional thermal insulation while operating in this low
power mode.
If anyone is interested in the video, I suppose I could upload it to
youtube.
Steve
On Wed, Feb 22, 2012 at 12:38 AM, Chris Albertson albertson.ch...@gmail.com
wrote:
On Tue, Feb 21
levels
when I installed the iCruze last year so I don't know if that's what it
has always been or not.
I have rebooted the iCruze several times as well as the Thunderbolt and
laptop, no change in iCruze behavior.
Any advice as to where to go from here?
Thanks.
Steve
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. With the
iCruze connected, it switches from -6 to +6.
I don't know if the -6 to +6 is normal, but it seems low to me for RS-232.
Taking the troubleshooting to the next level on the iCruze involves
desoldering a 16-pin header. I dunno . . . .
Steve
On 6/5/2011 4:56 AM, David Bobbett wrote:
Steve
to the display PCB.
Not sure where to go from here . . . trash can?
Steve
On 6/5/2011 4:25 PM, shali...@gmail.com wrote:
Check that the serial data is going to the processor. The schematic is on my
web site www.ko4bb.com look for GPS Monitor
You should see the inverted serial data on the processor pin
I was about to post a follow up note inquiring how the microprocessor
could be fried yet displaying the two lines of text. Thanks for
clarifying that point!
I think I'll write fluke.l first, see what he thinks of the situation.
I'll post the results.
Thanks everyone.
Steve
On 6/5/2011 8
.
Steve K8JQ
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of its input?
Improve? Degrade? Little or no change?
Thanks.
Steve K8JQ
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.
Steve K8JQ
Bruce Griffiths wrote:
Steve wrote:
I'm thinking about using the TAPR TADD-1 six channel RF distribution
amplifier to distribute the 10MHz output of my Trimble Thunderbolt to a
few pieces of test equipment.
What does the TADD-1 do to the phase noise characteristics of its
Bruce and others,
Thank you for the assistance. Seems that the TADD-1 will meet my needs,
I will probably acquire one in the near future.
Steve K8JQ
Bruce Griffiths wrote:
Steve wrote:
Thanks for the info Bruce.
I'm planning to use the Trimble Thunderbolt as the 10MHz source
disciplining?
I'm not familiar with all of the data presented to the user by these
pieces of software, so maybe the indication I'm curious about is there
and I don't recognize it?
Thanks.
Steve
Didier Juges wrote:
Marty,
Thanks for the link, I did not know about this new software. I will try
.
Steve
Magnus Danielson wrote:
Hi fellow time-nuts!
I received my Thunderbolts Monday, but I was delayed until this evening (no
worries, time-nuts related delay) to crimp the power and hook it up.
The wrong wire was bent away, but since the colours did not match the webpage
I
got curious
apart? At first examination, it appears that
six screws should allow the two pieces of the enclosure to separate. Any
pitfalls or gotchas? Advice?
Thanks.
Steve K8JQ
Didier Juges wrote:
Here is how I *glued* the AllElectronics power supply to the top of the
Thunderbolt and shortened the cable
I finally powered up my Trimble Thunderbolt (E) with a Motorola
antenna. There is a 10 MHz output. Unfortunately, I can't get Lady
Heather to tun more than 20 seconds without locking up. I have the
same issue on 3 computers - a Lenova Windows XP desktop with serial
port, a Toshiba laptop (USB
The Symmetricom data sheet mentions the Option AUB antenna mast. What is
that? I don't find details of it. How does you mount the 58532A antenna
if the Option AUB mast is not available?
Steve, K8JQ
On 10/1/2015 3:19 PM, Gregory Beat wrote:
I received this e-mail earlier today (below) from
Many thanks Chris and others (both on and off the reflector) for the
advice re antenna mounting. I should be able to do better than inches
above the awning, but 3-4ft is probably the best I can do. And it sounds
as if that should meet my needs.
Steve, K8JQ
On 3/9/2016 11:05 AM, Chris
would not be affected by the awning but thought I'd ask
before moving ahead with it.
Thanks.
Steve, K8JQ
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I calibrated and repaired dozens of these beasts in the Air Force. A Fluke
207-1 was our reference standard at the time. Still have a 207-1 on the shelf
and the whip antenna in the attic!
Steve K.
> On Jun 7, 2016, at 3:21 PM, <cdel...@juno.com> <cdel...@juno.com> w
frequency standard • Oven Controlled Crystal Oscillators
(OCXOs) • GPS caesium clock
This doesn't sound like a reference source, or generally useful.
Steve
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to keep it to 0402 and 0.5mm pitch limits, if possible, and it'd
be an infill job done when the machines are idle.)
Steve
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nutty about RF amplitudes, which
is a whole new game...)
Steve
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ink. See you over
there, let time nuts be time nuts?
Steve
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l needs that frequency smoothing goal.
If the goal is the closest accuracy to instantaneous earth rotation
then UT1 makes sense. That would be desirable if the intended use is
as direct input to navigation or pointing, but I can't point to any
existing system that can use such an input.
--
Steve Allen
would be appreciated...
Steve
Steven P. DiMare
[cid:image001.jpg@01CEEB5C.8B852340]
Senior Mechanical Designer
Frequency and Time Division
34 Tozer Road, Beverly, MA 01915-5510
Direct: 978-232-1489 | Fax. 978-927-4099
Steven P. DiMare
[cid:image001.jpg@01CEEB5C.8B852340]
Senior Mechanical Designer
stead UT2.
UT2 was the standard in the CCIR recommendations for radio broadcasts
before UTC with leap seconds (and in fact it was specified as the
underlying time scale in the first version of the CCIR leap second
document) specifically because it was smoother than UT1 over the
course of a year.
--
St
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